News: Informations- och kommunikationsteknikhttp://www.chalmers.se/sv/nyheterNews related to Chalmers University of TechnologyFri, 18 Dec 2020 10:00:28 +0100http://www.chalmers.se/sv/nyheterhttps://www.chalmers.se/en/areas-of-advance/ict/news/Pages/WASP-Announces-Call-for-NESTs.aspxhttps://www.chalmers.se/en/areas-of-advance/ict/news/Pages/WASP-Announces-Call-for-NESTs.aspxWASP Announces Call for NESTs<p><b>​WASP now announces a call for NESTs within AI, Autonomous Systems and Software. NEST is a new instrument in WASP that will encourage Novelty, Excellence, Synergy, and Teams.</b></p><h2 class="chalmersElement-H2">Aim and scope of the call </h2> <div>In this call WASP accepts applications from all the five partner universities Chalmers University of Technology, Linköping University, Lund University, KTH Royal Institute of Technology, and Umeå University as well as the research groups at Örebro University and Uppsala University that are members of WASP. <br /></div> <div><br /></div> <div>A NEST should address a specific strategic high-priority research challenge within WASP with international impact and visibility that requires the gathered competence of a multi-disciplinary team of investigators in order to be solved. The novelty and originality aspects and the relevance to Swedish industry are important.</div> <div><br /></div> <div>The call is open, and the deadline for applications is March 1, 2021. <br /></div> <div><br /></div> <div><a href="https://wasp-sweden.org/positions/wasp-announces-call-for-nests/">To the call</a><br /></div> <br /><br /><div><em>Wallenberg AI, Autonomous Systems and Software Program (WASP) is Sweden’s largest individual research program, a major national initiative for strategically motivated basic research, education, and faculty recruitment. The program addresses research on artificial intelligence and autonomous systems acting in collaboration with humans, adapting to their environment through sensors, information, and knowledge, and forming intelligent systems-of-systems.</em></div> <a href="https://wasp-sweden.org/">www.wasp-sweden.org</a>Fri, 18 Dec 2020 10:00:00 +0100https://www.chalmers.se/en/departments/m2/news/Pages/They’re-developing-an-AI-based-ship-support-system.aspxhttps://www.chalmers.se/en/departments/m2/news/Pages/They%E2%80%99re-developing-an-AI-based-ship-support-system.aspxThey’re developing an AI-based ship support system<p><b>​A group of Swedish technology entrepreneurs and researchers from Chalmers have joined forces to develop an AI-based system for executing the most energy-efficient sea voyages.</b></p>​Swedish ship propulsion optimization experts, Lean Marine and AI-application developers Molflow have been collaborating with academics from the Chalmers University of Technology in Gothenburg to develop a new AI-powered, semi-autonomous system for planning and executing more energy-efficient sea voyages since the project commenced in August 2020. The project goes by the name Via Kaizen and is funded by the Swedish Transport Administration. <h3 class="chalmersElement-H3">AI systems give the captain advice on how the voyage should be carried out </h3> <div>The technology available in the companies enables a high degree of digitization and automation in vessel operations. The systems optimize the propulsion line dynamically, in real-time, based on orders given by the AI system that has been developed. Data collected from the AI system and other signals on-board are then fed into a cloud-based performance management platform which shares information with other systems. With &quot;Deep Learning&quot; technologies, the systems will then be able to determine, given the constraints of the route and the ship, the most energy-efficient voyage and calculate the commands that need to be set to reach the destination with the least possible amount of fuel consumed. </div> <div><br /></div> <div>Linus Ideskog, development manager at Lean Marine, says that when the perfect simulated journey is determined, their system steps in and creates an interface between the captain and the AI-based solution for travel planning. </div> <div><br /></div> <div>&quot;This gives human and machine the opportunity to collaborate and carry out the journey in an optimal way. The system can automatically and directly optimize the propulsion machinery based on commands given by the captain or received directly from the AI-solution&quot; says Linus Ideskog. </div> <h3 class="chalmersElement-H3"><span>Reduces emissions from shipping </span></h3> <div><span style="background-color:initial">From an academic perspective, naval architect researchers at the Chalmers University of Technology are working in close collaboration with Lean Marine and Molflow on the development of new methods, models, and algorithms. </span></div> <div><span style="background-color:initial"><br /></span></div> <div>“In this project, we at Chalmers will develop dynamic ship speed-power performance models by combining theoretical naval architecture knowledge with AI to predict the dynamic time series of a ship’s propulsive power when the ship is encountering different wind and wave conditions” says Wengang Mao, professor at the Division of Marine Technology at the Department of Mechanics and Maritime Sciences. </div> <div><br /></div> <div>Researchers from social anthropology and human factors at Gothenburg University and Linnaeus University are conducting research on what happens to practices onboard and ashore as the new technology is implemented. The Swedish Shipowners’ Association is also participating in the project, providing vital insights and input from the Swedish shipping industry and by contributing to the dissemination of research findings and development information to the Swedish maritime industry. </div> <div><br /></div> <div>In addition to the project partners, a trio of ship owners and operators are involved in the project, including chemical/product tanker owner and operator, Rederiet Stenersen and pure car and truck carrier (PCTC) owner and operator, UECC. By offering their vessels for technology and product validations, they will enable onboard testing, and the results will be directly evaluated within the scope of the project. Mikael Laurin, CEO of Lean Marine, says: </div> <div><br /></div> <div>“We believe this project will contribute considerably to the reduction of emissions both from international and domestic transportation, importantly making Swedish shipping more sustainable and competitive in the long-term.”<br /></div> <h3 class="chalmersElement-H3">Read more</h3> <div><a href="https://leanmarine.com/2020/12/09/ai-powered-ship-operation-support-system-developed-by-swedish-consortium/">Press release from Lean Marine</a><br /><a href="/en/Staff/Pages/wengang-mao.aspx">Wengang Mao​</a></div> <div></div>Fri, 11 Dec 2020 08:30:00 +0100https://www.chalmers.se/en/departments/e2/news/Pages/Designing-the-6G-networks-of-the-future.aspxhttps://www.chalmers.se/en/departments/e2/news/Pages/Designing-the-6G-networks-of-the-future.aspxDesigning the 6G networks of the future<p><b>​Just when 5G is being introduced to us common users, researchers are ready to design 6G. Chalmers is one of the stakeholders in a European project that will lay the foundation for the next generation of mobile communication networks. By integrating artificial intelligence, a smart fabric is woven that will connect our physical, digital and personal worlds.​</b></p>​<span style="background-color:initial">Expectations are high and the list of wishes is long regarding what 6G communications will be able to perform within the next ten years, or even earlier. 6G is mentioned as the enabler of ‘Internet of Senses’. This means that we will be able to experience Internet applications using all of our five human senses, not only sight and hearing as today. Our homes, offices, factories and cities will be depicted in a constantly updated interactive map, which also predicts what will happen in the real world. We will be able to communicate via holograms and smart surfaces positioned in three dimensions also enabling information about the orientation of objects.</span><div><br /><span style="background-color:initial"></span><div><img src="/SiteCollectionImages/Institutioner/E2/Nyheter/6G%20Hexa-X/Tommy-Svensson_I0A5568_350px.jpg" class="chalmersPosition-FloatRight" alt="Tommy Svensson" style="margin:5px" /></div> <div>”6G will provide significantly more of everything that 5G offers. In addition, 6G will be an important tool for reaching several of the UN's sustainability goals. All this is enabled by high transmission speeds, low latency, knowledge of the radio environment, positioning and orientation, integrated sensing, network of networks, and by computational power being decentralized in the mobile networks. A key to this is that 6G can ensure energy-efficient, trustworthy, robust and secure communication”, says Tommy Svensson, Professor in communication systems at Chalmers, focusing his research on wireless communications.</div> <div><br /></div> <div><strong>The foundation for a global standard </strong></div> <div>Europe has always been the leader in developing standards for mobile communications, and 6G is no exception. At the turn of the year, the Hexa-X project will start, funded by the EU Framework Programme for Research and Innovation, Horizon 2020. The aim is to define the technical principles of the 6G system and to lay the foundation for the coming work on a global standard. This will then be the starting point for the telecom industry to develop their products and services.</div> <div><br /></div> <div>“It is very gratifying that we at Chalmers once again get the privilege to be assigned to lay the foundation for the standard of a new generation of mobile networks”, says Tommy Svensson, coordinator of Chalmers' participation in Hexa-X, leader of a sub-project within distributed large antenna systems, and also taking part in Hexa-X's work on vision, architecture and system aspects.</div> <div><br /></div> <div><strong>Built on artificial intelligence from the start</strong></div> <div>Already today, algorithms and artificial intelligence are used to optimize mobile networks in various ways, but in 6G, support for AI and machine learning will be available from the start. This means that applications can be trained for complex tasks and perform them in parallel, due to that information and computational power are located closer to the users, further out in the mobile networks.</div> <div><br /></div> <div>6G requires that a new radio spectrum is entered, which is a major technical challenge. In order to reach data rates in the scale of Terabit/second and response times as low as 0.1 milliseconds, the signals must be transmitted in the Teraherz range, preferably beyond 300 GHz. This means that the bandwidth will be very high, but also that the range of the radio signals will be very short. The signals will be blocked by walls and other obstacles, which imply the demand for new types of antennas – many small antennas that provide sufficient coverage, but only will be in operation when there is a need of them. Also the base stations will be many more and smaller in size.</div> <div><br /></div> <div>“This means that a fabric of smart radio communication is woven, only used when and where there is a task for it to fulfil”, says Tommy Svensson.</div> <div><br /></div> <div>“These very narrow and controllable antenna lobes provide new possibilities for precise positioning. For the man in the street, this means that the mobile phone will offer increasingly sophisticated map functions. In the mobile system, the position of a transmitter can be defined in all three dimensions of the room, as well as its orientation, as accurately as less than one centimeter”, says Henk Wymeersch, Professor in communication systems at Chalmers, focusing his research on cooperative systems, and leading the Hexa-X work package on localization and sensing.</div> <div><br /></div> <div><strong>Holistic thinking for further sustainable development</strong></div> <div>“A challenge in the development of 6G technology is that we must think in a much more holistic way”, says Tommy Svensson. “It is no longer a matter of inventing isolated smart functions, rather the design of a whole entity where there are built-in control systems directing how the technology is allowed to be used for the benefit of society and in the best interest of the individual. Aspects of sustainability, environmental considerations, democracy, inclusion and integrity must therefore be integrated into the communication systems, now being developed by researchers and the telecom industry.”</div> <div><br /></div> <div>“I think life cycle analyses will be an interesting tool to assess the sustainability of 6G systems. In that way, we can not only understand what important design requirements should be set for 6G, but also analyze the benefits of 6G for digitization of completely new areas”, says Tommy Svensson.</div> <div><br /></div> <div>Text: Yvonne Jonsson</div> <div>Portrait photo: Anna-Lena Lundqvist<br />Other images: Hexa-X</div> <div><em><img src="/SiteCollectionImages/Institutioner/E2/Nyheter/6G%20Hexa-X/hexa-x-digital-world2_750px.jpg" class="chalmersPosition-FloatRight" alt="6G according to Hexa-X" style="margin:5px" /><br /><br /><br /></em></div> <div><br /></div> <div><em>The Hexa-X project aims to connect our human world of intelligence and values, with the digital world of information and a physical world of processes.</em><br /></div> <div><br /></div> <div><div><strong>Six research challenges to lay the technical foundation for 6G wireless systems:</strong></div> <div><ul><li><em>Connecting intelligence</em>: Artificial intelligenceI/Machine Learning technologies need to be a vital and trusted tool for significantly improved efficiency and service experience, serving humans </li> <li><em>Network of networks</em>: multiple types of resources need to be aggregated to create a digital ecosystem that grows more and more capable, intelligent, and heterogeneous, eventually creating a single network of networks</li> <li><em>Sustainability</em>: energy-optimized digital infrastructure for a reduced global ICT environmental footprint, as well as delivering effective and sustainable digitization tools for global industry, society and policymakers</li> <li><em>Global service coverag</em>e: efficient and affordable solutions for global service coverage, connecting remote places</li> <li><em>Extreme experience</em>: extreme bitrates, extremely low (imperceptible) latencies, seemingly infinite capacity, and precision localization and sensing</li> <li><em>Trustworthiness</em>: ensuring the confidentiality and integrity of communications and delivering data privacy, operational resilience and security</li></ul></div> <div><br /></div> <div><strong>More about the Hexa-X project</strong></div> <div>The project brings together key industry stakeholders and academia in Europe to take the lead in advancing 6G. The Hexa-X project starts on 1 January 2021, with a planned duration of 2.5 years. The stakeholders represent the full value-chain of the communication industry, including research institutes and universities, such as Nokia, Ericsson, Intel, Orange, Qamcom and Siemens. From academia Chalmers and the universities of Helsinki (Aalto), Dresden, Kaiserslautern, Pisa, Turin and Oulu are participating.</div> <div><a href="https://hexa-x.eu/" target="_blank">Read more on the web site of the project </a></div> <div><br /></div> <div><strong>For more information, contact</strong></div> <div><a href="/en/staff/Pages/tommy-svensson.aspx">Tommy Svensson</a>, coordinator of Hexa-X at Chalmers, and Professor in the Communication systems research group where he is leading the wireless systems research, at the Department of Electrical Engineering</div> <div><a href="mailto:%20tommy.svensson@chalmers.se">tommy.svensson@chalmers.se</a></div></div></div>Fri, 11 Dec 2020 00:00:00 +0100https://www.chalmers.se/en/departments/e2/news/Pages/Advanced-antenna-lab-in-operation-at-Chalmers.aspxhttps://www.chalmers.se/en/departments/e2/news/Pages/Advanced-antenna-lab-in-operation-at-Chalmers.aspxAdvanced antenna lab in operation at Chalmers<p><b>​A millimetre wave/terahertz antenna measurement chamber has been installed and recently taken into operation at Chalmers. This antenna cha​mber is a state-of-the-art infrastructure for education and research on antenna technology. Its equivalent is only found in a few other places in Europe.​</b></p>​<span style="background-color:initial">“This is an investment for the future”, says Marianna Ivashina, Professor and Head of the Antenna systems research group at Chalmers. “The new antenna chamber positions Chalmers as a major player moving towards terahertz frequencies and massive MIMO systems (Multiple Input Multiple Output) with high levels of integration between antennas, electronics, and digital signal processing.”</span><div><br /></div> <div>Antennas is an essential part of any wireless communication and sensor system that use the energy of electromagnetic waves to transfer information wirelessly through space. Today, there are many different applications that drive the development of antenna systems. The most known sectors include telecommunications, radars, transport, astronomy and space sciences. </div> <div><br /></div> <div>The antenna lab is an anechoic chamber; a shielded and isolated room designed to suppress the electromagnetic wave energy of echoes - reflected electromagnetic waves. The interior surfaces in the room are covered with wedge-shaped absorptive material. The equipment under test receives signals from a signal source in the chamber without internally reflecting these transmitted waves. This ensures that the antenna being tested is not influenced by external or internal reflected noise.</div> <div><br /></div> <div><strong>A flexible measuring system</strong></div> <div>The antenna measurement equipment in the new lab is suitable for the characterisation of all standards and parameters of passive and active antenna systems, including antennas and devices developed for 5G and 6G communications and beyond. The flexibility of the reconfigurable antenna measurement system allows for all kinds of tests, from research and development to prototyping and final product acceptance.</div> <div><br /></div> <div>The investment is a strategic joint effort by the Department of Electrical Engineering at Chalmers and related industries in the Gothenburg area, including Ericsson, QAMCOM, Gapwaves, Bluetest, Provinn, and RanLOS.</div> <div><br /></div> <div>“We invite researchers and students that want to explore the potential of this state-of the art infrastructure to collaborate with us and use the chamber in educational and scientific projects”, says Associate Professor Ashraf Uz Zaman, Manager of the mm-wave/THz chamber. “The antenna chamber will be available for collaborators from January 2021.”</div> <div><img src="/SiteCollectionImages/Institutioner/E2/Nyheter/Förstklassig%20kammare%20byggs%20för%20antennforskning/THzAntennaLab_AshrafUzZaman_201105_01_750x500px.jpg" class="chalmersPosition-FloatRight" alt="Ashraf Uz Zaman in the antenna lab" style="margin:5px" /><br /><br /><br /></div> <div><em>The interior surfaces in the anechoic antenna chamber are covered with wedge-shaped absorptive material. Here, the researcher Ashraf Uz Zaman is preparing the lab for testing. The antenna measurement system is flexible and suitable for the characterisation of all standards and parameters of passive and active antenna systems, from research and development to prototyping and final product acceptance.</em><br /></div> <div><br /></div> <div><strong>Moving towards teraherz frequencies</strong></div> <div>Only a few other antenna measurement chambers in Europe have similar features and capacity as the chamber now being taken into operation at Chalmers. These antenna chambers are provided by the same supplier and located in France, Italy and in Great Britain.</div> <div><br /></div> <div>Currently, the chamber at Chalmers offers an operation frequency range from 700 MHz up to 300 GHz. The setup has the potential to be further upgraded to also include teraherz frequencies. In the electromagnetic spectrum, terahertz waves are found between microwaves and infrared light, operating in between electronics and optics.</div> <div><br /></div> <div>“In a few years, we are planning to upgrade the equipment to be able to perform measurements in frequencies beyond 300 GHz”, says Marianna Ivashina. “That kind of measurements are challenging and requires very advanced technology, since it is approaching the limit of what is currently possible to access.”</div> <div><br /></div> <div>The company Antenna Systems Solutions, ASYSOL, has been the main supplier of the antenna chamber. ASYSOL is a worldwide leading provider of antenna measurement solutions for the defense, government and wireless industries. </div> <div><br /></div> <div>Read an article on the project from ASYSOL: <a href="http://asysol.com/en/news/detail/antenna-systems-solutions-to-supply-millimetre-wave-system-to-chalmers-university-gothenburg-sweden" target="_blank">Antenna Systems Solutions to supply Millimetre wave system to Chalmers University of Technology, Sweden)</a></div> <div><br /></div> <div>Text: Yvonne Jonsson</div> <div>Photo: Henrik Sandsjö</div> <div><br /></div> <div><br /></div> <div><strong>Facts about what measurements that can be performed at Chalmers</strong></div> <div>The antenna chamber comprises a reconfigurable engineered mechanical setup allowing different types of measurements: </div> <div><ul><li>direct far-field (FF) measurements using a larger distance between the source antenna and antenna under test (AUT), </li> <li>spherical near-field (SNF) measurements for electrically larger antennas </li> <li>indirect far-field measurements for electrically larger antennas using a compact antenna test range (CATR) setup</li> <li>Multiple-Input Multiple-Output (MIMO) measurements, calibration, algorithm evaluation, etc., in <a href="https://research.chalmers.se/en/publication/?id=508028" target="_blank">the MATE testbed​​</a>. The testbed has both a mmWave setup at 29 GHz, and configurations in the 1-3 GHz region, and a web interface for remote control.</li></ul></div> <div><br /></div> <div><a href="/en/departments/e2/research/Communication-systems/Antenna-systems/Pages/default.aspx"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />Read more about the antenna chamber and the research at Chalmers on antenna systems​</a></div> <div><br /></div> <div><strong>Examples of research projects where the new antenna chamber will be used:</strong></div> <div><a href="https://research.chalmers.se/en/project/9352" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />MyWave – Efficient Millimetre-Wave Communications for mobile users</a></div> <div><a href="https://research.chalmers.se/en/project/9708" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Forward – Hardware For Next generation Millimeter Wave Automotive Radar Sensor</a></div> <div><a href="https://research.chalmers.se/en/project/9779" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Antenna technologies for beyond 5G</a></div> <div><br /></div> <div><strong><br /></strong></div> <div><strong>For more information, please contact:</strong></div> <div><a href="/en/staff/Pages/marianna-ivashina.aspx">Marianna Ivashina</a>, Professor and Head of the Antenna Systems Research group, Department of Electrical Engineering at Chalmers University of Technology</div> <div><a href="mailto:%20marianna.ivashina@chalmers.se">marianna.ivashina@chalmers.se</a></div> <div><br /></div> <div><a href="/en/Staff/Pages/ashraf-uz-zaman.aspx">Ashraf Uz Zaman</a>, Manager of the mm-wave/THz chamber, Associate Professor at the Antenna Systems Research group, Department of Electrical Engineering at Chalmers University of Technology</div> <div><a href="mailto:%20zaman@chalmers.se">zaman@chalmers.se</a><span style="background-color:initial">​</span></div>Fri, 11 Dec 2020 00:00:00 +0100https://www.chalmers.se/en/areas-of-advance/ict/news/Pages/Erik-Strom-is-the-new-Director-of-Area-of-Advance-ICT.aspxhttps://www.chalmers.se/en/areas-of-advance/ict/news/Pages/Erik-Strom-is-the-new-Director-of-Area-of-Advance-ICT.aspxErik Ström is the new Director of Area of Advance ICT<p><b>​In January, Erik Ström will take over as Director of the Area of Advance Information and Communication Technology, ICT, when Ivica Crnkovic’ appointment ends.</b></p>​<span style="background-color:initial">The Area of Advance ICT has made strong contributions to Chalmers' progress within artificial intelligence and autonomous systems in recent years, including Chalmers' participation in the Wallenberg AI, Autonomous Systems and Software Program, WASP, and not least through the establishment of the Chalmers Foundation investment CHAIR, Chalmers AI Research Centre.</span><div><br /></div> <div>Erik Ström points out ICT as the very engine of smart systems. This was something he expressed in his William Chalmers lecture this autumn. A clip from the lecture can be found in the video above.</div> <div>“ICT offers an important key to sustainable development in many areas, such as energy, transport, health, production and more. I’m eager to contribute in developing that work at Chalmers”, he says.</div> <div><br /></div> <div>Erik Ström is a professor of Communication Systems and Centre Director for ChaseOn, one of Chalmers' very successful competence centres that has run for almost 15 years. His research includes, among other things, vehicle communications for traffic safety applications, and he has previously been involved in the management of SAFER and the Area of Advance Transport.</div> <div>“Through the Area of Advance, I have built a valuable network. I’ve learned new things but also gained contacts to start new projects – both at Chalmers and with actors in industry.”</div> <div><br /></div> <div>He starts his new assignment as Director in January, and initially he will focus on getting acquainted with the task and learn the procedures.</div> <div>“The current AoA management has done a really good job, including major initiatives such as CHAIR and WASP. In 2021, I will get to work together with Co-Director Giuseppe Durisi, which is valuable for continuity and knowledge transfer.”</div> <div><br /></div> <div>Erik Ström is also looking forward to collaborating with the other Areas of Advance.</div> <div>“ICT is an area with connections to several Areas of Advance and there are endless possibilities, it is very exciting”, he says.</div> <div><br /></div> <div><br /></div> <div><br /></div> <div>Contact: <a href="/en/Staff/Pages/erik-strom.aspx">Erik Ström</a>, Professor in Communication Systems, Department of Electrical Engineering. <span style="background-color:initial"> </span><span style="background-color:initial"> </span></div> <div><br /></div> <div>The full William Chalmers lecture can be found here:</div> <div><a href="/en/news/Pages/On-5G-Covid-19-cocksureness-and-todays-challenges.aspx">On 5G, Covid-19, cocksureness and todays challenges</a></div> <div><br /></div> Thu, 10 Dec 2020 14:00:00 +0100https://www.chalmers.se/en/departments/e2/news/Pages/Erik-Strom-elected-Fellow-of-IEEE.aspxhttps://www.chalmers.se/en/departments/e2/news/Pages/Erik-Strom-elected-Fellow-of-IEEE.aspxErik Ström elected Fellow of IEEE<p><b>​As of January 2021, Erik Ström, Professor of Communication Systems at Chalmers, is elected IEEE Fellow for his contributions to reliable low latency communications and synchronization of code-division systems.​</b></p>​<span style="background-color:initial">We took the opportunity to ask Erik Ström some questions:</span><div><br /></div> <div><strong>What does this elevation to IEEE Fellow mean for you?</strong></div> <div>It means a great deal for me! It is a very nice recognition of my research, and something I have secretly hoped to be worthy of receiving at some point in my career. </div> <div><br /></div> <div><strong>Which of your scientific achievements do you rank the highest?</strong></div> <div>Hard to say, but I think the work I did as a PhD student (some 30 years ago) on synchronization and channel estimation for direct-sequence code-division multiple access (DS-CDMA) was of some importance at the time. It was just in the early phase in 3G research, and there was a big debate on the pros and cons with CDMA. I am also happy with the work I have done with colleagues and PhD students on medium access for vehicular communication and ultra-reliable low-latency communication (URLCC), the last 10-15 years or so. URLCC is one of the main innovations in 5G, I think our work has contributed to this development. I guess we always try hard to study important and relevant problems, but research impact is not always readily apparent. Some papers take a long time to get recognized and cited, while other papers will never be appreciated – sometimes for good reasons and sometimes not. </div> <div><br /></div> <div><strong>What motivates you as a researcher?</strong></div> <div>My biggest driving force is the absolute joy of discovering new knowledge – new to me and, sometimes, new to everyone – and then to share this with colleagues, students, family, and friends. To actually get paid to do this is a true privilege. </div> <div><br /></div> <div><br /></div> <div><strong>About IEEE Fellow</strong></div> <div>IEEE Fellow is the highest grade of membership in the organization IEEE, Institute of Electrical and Electronics Engineers, a world-leading professional association for advancing technology. The distinction is given to people who have ‘made outstanding achievements in the organization's areas of interest’. IEEE has more than 419,000 members in 160 countries. The 2021 class of IEEE Fellows comprise 249 persons, of which three are researchers working in Swedish.</div> <div><a href="https://www.ieee.org/membership/fellows/index.html" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />More information about the IEEE Fellow program​</a></div> <div><br /></div> <div><br /></div> <div><strong>Contact</strong></div> <div><a href="/en/staff/Pages/erik-strom.aspx">Erik Ström</a>, Professor at the Department of Electrical Engineering and Head of the Division of Communications, Antennas, and Optical Networks, Chalmers University of Technology</div> <div><a href="mailto:%20erik.strom@chalmers.se">erik.strom@chalmers.se</a></div> <div><br /></div> <div><a href="/en/staff/Pages/erik-strom.aspx"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />Read more about Erik Ström and his research​</a><br /></div> Thu, 03 Dec 2020 00:00:00 +0100https://www.chalmers.se/en/centres/chair/news/Pages/AI-related-projects-at-Chalmers-receive-grants-from-the-Swedish-Research-Council-.aspxhttps://www.chalmers.se/en/centres/chair/news/Pages/AI-related-projects-at-Chalmers-receive-grants-from-the-Swedish-Research-Council-.aspxAI-related projects at Chalmers receive grants from the Swedish Research Council<p><b>Four researchers from four different departments at Chalmers were successfull in obtaining grants for AI-related projects from The Swedish Research Council (VR) within natural and engineering sciences. CHAIR congratulates Philippe Tassin, Robert Feldt, Christian Häger and Ross King​.</b></p><h3 class="chalmersElement-H3">​​AI-projects with grants from The Swedish Research Council  </h3> <div><br /></div> <div><strong>Robert Feldt, Department of Computer Science and Engineering </strong><br />Automatiserad testning av gränser för kvalitet på AI/ML modeller <br />SEK 2 180 000 </div> <div><br /></div> <div><div><strong>Christian Häger, Department of Electrical Engineering </strong><br />Fysikbaserad djupinlärning för optisk dataöverföring och distribuerad avkänning <br />SEK 4 000 000 </div> <div><br /></div> <div><strong>Ross King, Department of Biology and Biological Engineering </strong><br />Closed-loop inlärning av genome-scale metaboliska modeller med hjälp av Robot Forskaren Genesis <br />SEK 3 800 000</div> <div>​</div></div> <div> </div> <div> <strong>Philippe Tassin, Department of Physics </strong><br />Utveckling av nya fotoniska metaytor med hjälp av artificiell intelligens <br /> SEK 3 700 000 </div> <div><br /></div> <div><strong>Read more:</strong></div> <div><br /></div> <div><a href="/en/news/Pages/43-Chalmers-researchers-receive-funding-for-more-research.aspx">43 Chalmers researchers receive funding for more research &gt;</a><br /></div> <div><br /></div> <div>Pressrelease in Swedish from the Swedish Research Council: <br /><a href="https://www.vr.se/aktuellt/nyheter/nyhetsarkiv/2020-10-29-11-miljarder-till-naturvetenskap-och-teknikvetenskap.html" target="_blank">1,1 miljarder till naturvetenskap och teknikvetenskap &gt;​</a> (29 Oct)<br /></div> <div></div>Sun, 15 Nov 2020 00:00:00 +0100https://www.chalmers.se/en/news/Pages/On-5G-Covid-19-cocksureness-and-todays-challenges.aspxhttps://www.chalmers.se/en/news/Pages/On-5G-Covid-19-cocksureness-and-todays-challenges.aspxOn 5G, Covid-19, cocksureness and todays challenges<p><b>​He develops technology that can point out exact positions without using GPS and prevent self-driving cars from colliding. This year&#39;s William Chalmers lecturer Erik Ström wants to talk about the possibilities of communication technology – and major challenges.</b></p>​<span style="background-color:initial">Erik Ström is professor at the Department of Electrical Engineering. Simply put, he works with technology to move information from one place to another. He is also the director of the competence center ChaseOn, which develops antenna systems for anything from high-speed mobile networks and self-driving cars to safe baby food and medical diagnostics. He has also been involved in developing a global standard for 5G, which has resulted in frequent questions by media about the development of mobile networks. In those situations, he is keen on highlighting the possibilities with communication technology.</span><div><span style="background-color:initial">“What if we had not had the internet and all the resources of today – what would we have done in this Covid pandemic?” he says. “It is fantastic how we can gather, process and use data to, for example, predict where the infection will appear, perhaps be able to find vaccines and effective treatment methods. There is an incredible potential in this technology!”</span><br /></div> <div><br /></div> <div><strong>Time for yet another new generation </strong></div> <div>The 5G mobile network is faster than previous generations and has an increased capacity, which means that more devices can be connected at the same time and communicate with each other in real time. It is soon in everyone’s pocket. And recently, the first step was taken towards starting the next generation – 6G. Chalmers, together with a number of other academies and industries, is participating in a major EU project that will set the framework before the work on the new 6G net can even begin. In eight to ten years, the network will then be available to the public. But it is still too early to predict which new technological innovations 6G will involve, says Erik Ström. </div> <div><span style="background-color:initial">“As they say, the only thing we know for certain is that 6G comes after 5G. Of course, we have some thoughts about which new services we think will be important, but it is difficult to know beforehand what will become a commercial hit. As an example, we believe that developing an accurate positioning in six dimensions will be useful. It will enable you to determine, for example, where and on which floor in a large high-rise building a mobile phone is located, and also in which direction that phone is pointing, i.e. compass direction plus upwards/downwards, much like with a combined compass and spirit-level.”</span></div> <div><br /></div> <div><strong>Worried about the societal development</strong></div> <div>As the mobile network is expanding, so are the reports of 5G masts being set on fire. Because online, the conspiracy theories thrive about a connection between 5G and the corona spread. Erik Ström is worried about this type of development and he therefore wants to spend some time in his lecture to reflect his thoughts on the concept of knowledge.</div> <div><span style="background-color:initial">“I am concerned about the development towards a society where people get their worldview confirmed in their filter b</span><span style="background-color:initial">ubbles”, says Erik Ström. “It's really dangerous!”</span><br /></div> <div><br /></div> <div><strong>How do you feel about giving this year's William Chalmers lecture?</strong></div> <div>“It is very honoring to be selected among all the talented people at Chalmers! I enjoy sharing my thoughts, and to talk about things close to my heart in this forum is really exciting. But it also gives me a great deal of performance anxiety – that comes naturally with something like this!”</div> <div><br /></div> <div>Text: Helena Österling af Wåhlberg</div> <div>Photo: Yen Strandqvist​​</div> <div><br /></div> <div><br /></div> Tue, 13 Oct 2020 00:00:00 +0200https://www.chalmers.se/en/centres/chair/news/Pages/Call-for-CHAIR-Consortium-Projects-2021.aspxhttps://www.chalmers.se/en/centres/chair/news/Pages/Call-for-CHAIR-Consortium-Projects-2021.aspxCall for CHAIR Consortium 1- and 2-year Projects 2021<p><b>​​New call for 1- and 2-year projects starting 2021. The call is open for proposals supported by core partners from the consortium of Chalmers AI Research Centre​ (CHAIR).</b></p><h3 class="chalmersElement-H3">​​Important dates</h3> <div><div><ul><li>Submission due : Dec 15, 2020 (the date is firm)</li> <li>Notification: Feb , 2021</li> <li>Project start: April 1st 2021</li> <li>Project end (first year): March 31st, 2022 </li></ul> <span style="background-color:initial">The CHAIR Consortium consists of the following core partners: Chalmers, Volvo Group, CEVT, Volvo Cars, Ericsson and Sahlgrenska University Hospital. While the application domains of the partners are diverse, they all face a set of common challenges in developing AI/ML solutions, which are addressed in this call. This call for 1- and 2-year projects asks for novel research ideas and solutions that address these common challenges and are of interest for the consortium partners. </span></div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial">A budget per project is up to 600 kSEK/year. Two-year projects will be approved for one year and conditionally for the second year after the evaluation from the first year. The total budget of this call will be sufficient for 6-8 projects. </span></div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial"> The proposals must be supported from at least one core partner. A letter of intent from a core partner is required.  (<em>Note: It is OK to get  an informal  Letter of Intent from the unit manager that will have the resposibility for the involvment in the project</em>) A contribution in kind or in cash from core partners is preferable. Chalmers institutions, as defined for all CHAIR projects, need to contribute 10% of the budget in kind. </span></div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial"> Applications that build teams with a good gender balance are encouraged. </span></div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial"> The proposal topics should be in the area of AI, or AI-related area. The project can be of fundamental-AI character, or Applied AI with emphasis of a combination AI with other fundamental research areas (AI enablers), or a use of AI in a particular domain. </span></div> <div><span style="background-color:initial"><br /></span></div> <h3 class="chalmersElement-H3"><span> Requirements</span></h3> <div><span style="background-color:initial"><ul><li><span style="background-color:initial">Eligible applicants are Chalmers researchers including GU employees at shared departments (MV and CSE). PhD students or master students from Chalmers, or GU from the education programs at shared departments can be included in the project.</span></li> <li><span style="background-color:initial">The budget should not exceed 600 kSEK per year including indirect costs (OH). It can cover personnel costs, and other costs up to 10% of the project budget, excluding equipment. Further, 10% funding in kind is requested from the department hosting the project.</span></li> <li><span style="background-color:initial">The proposal should follow the formats and outline defined in two templates and the letter(s) of intent. Incomplete proposals, or proposals that do not follow the defined format and size of the templates will be desk-rejected.</span></li> <li><span style="background-color:initial">A researcher can only be part of one proposal. </span></li></ul></span></div> <h3 class="chalmersElement-H3"><span>Submission and notification </span></h3> <div><span style="background-color:initial">The proposals should be submitted as one PDF file consisting of the following parts </span></div> <div><ol><li><span style="background-color:initial"><a href="/SiteCollectionDocuments/Centrum/CHAIR/CHAIR_1-2year_Project-proposal-template.docx" target="_blank"><span>Chair Project proposal form</span></a> - one page (Word template) </span></li> <li><span style="background-color:initial"><a href="/en/centres/chair/news/Documents/CHAIR%201-2%20years%20Project%20Plan%20Template.docx">Project Plan</a> - max 5 pages, including ethical considerations (Word template) </span></li> <li><span style="background-color:initial">CVs of main applicants - one page per applicant </span></li> <li><span style="background-color:initial"><a href="/SiteCollectionDocuments/Centrum/CHAIR/CHAIR-Letter-of-intent.docx" target="_blank">Letter of Intent​</a> (Word template) </span></li></ol> ​<br /><span style="background-color:initial">The proposal should be submitted as a PDF-file containing all above documents to Easychair.</span></div> <div><span style="background-color:initial"><a href="https://easychair.org/conferences/?conf=chaircprojects21" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Submit your PDF proposal to Easychair​</a></span></div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial"> Upon notification, the PIs should prepare and sign the project contract with the CHAIR Consortium. The manager of the PI (Head of Unit or head of department) at Chalmers will also sign the contract. </span></div> <div><span style="background-color:initial"><br /></span></div> <h3 class="chalmersElement-H3"><span> Evaluation Criteria </span></h3> <div><ul><li><span style="background-color:initial">The research novelty of the proposal.</span></li> <li><span style="background-color:initial">The involvement of the core partners. Involvement of several core partners will be prioritized.</span></li> <li><span style="background-color:initial">The relevance for core partners (including the number that found it relevant).</span></li> <li><span style="background-color:initial">The possible impact of the research to the research field. </span></li> <li><span style="background-color:initial">The expected research results, and the potential of the research results for further research or utilization. </span></li> <li><span style="background-color:initial">The feasibility of the project plan. </span></li> <li><span style="background-color:initial">The ability of the project members to deliver the results. </span></li> <li><span style="background-color:initial">The ethical reasoning. </span></li></ul> <br /><span style="background-color:initial">The proposals will be evaluated by a CHAIR independent review team and the decision of funding will be taken by the CHAIR Core Partners Board, and approved by CHAIR steering committee. </span></div> <div><span style="background-color:initial"><br /></span></div> <h3 class="chalmersElement-H3"><span> Contact Information </span></h3> <div>Contact information and possible questions: <br /><ul><li>The call general questions can be sent to Ivica Crnkovic (<a href="mailto:ivica.crnkovic@chalmers.se">ivica.crnkovic@chalmers.se</a>) or Kolbjörn Tunström (<a href="mailto:kolbjorn.tunstrom@chalmers.se" target="_blank">kolbjorn.tunstrom@chalmers.se</a>).</li> <li>For questions related to the ethical aspects of the proposal you can contact Olle Häggström (<a href="mailto:olleh@chalmers.se">olleh@chalmers.se​</a>). </li> <li>To contact Core partners for particular questions related to the project proposal you can contact </li> <ul><li>CEVT: <a href="mailto:shafiq.urrehman@cevt.se">Shafiq Urréhman​</a></li> <li><a href="mailto:shafiq.urrehman@cevt.se"></a>Ericsson: <a href="mailto:aneta.vulgarakis@ericsson.com">Aneta Vulgarakis</a> </li> <li>Sahlgrenska University Hospital: <a href="mailto:anders.hyltander@vgregion.se">Anders Hyltander</a> </li> <li>Volvo Cars: <a href="mailto:erik.hjerpe@volvocars.com">Erik Hjerpe</a> </li> <li>Volvo Group: <a href="mailto:jenny.erneman@volvo.com">Jenny Erneman​</a></li></ul></ul></div></div> Mon, 12 Oct 2020 11:00:00 +0200https://www.chalmers.se/en/areas-of-advance/ict/news/Pages/Graduate-school-in-AI-within-humanities-and-social-sciences.aspxhttps://www.chalmers.se/en/areas-of-advance/ict/news/Pages/Graduate-school-in-AI-within-humanities-and-social-sciences.aspxGraduate school in AI within humanities and social sciences<p><b>​Four doctoral students from Chalmers participated in the first meeting of the WASP-HS graduate school when 35 doctoral students from several Swedish universities gathered to discuss and dive deeper in artificial intelligence within humanities and social sciences.</b></p>​<span style="background-color:initial">WASP-HS research tackles the challenges and impact of upcoming technology shifts as well as contributing to the development of theory and practice of human and societal aspects of AI and autonomous systems, and in particular, focus on potential ethical, economic, labor market, social, cultural and legal aspects of technological transition.</span><div><br /></div> <div>Each of the doctoral students hold a position at a Swedish university as a member of one of the 16 research projects that are run in the WASP-HS program. The doctoral students from Chalmers that participated was Alicja Ostrowska, from department of Technology Management and Economics, and Mafalda Gamboa, Denitsa Saynova and Ziming Wang from the department of Computer Science and Engineering.</div> <div><br /></div> <div>The Wallenberg AI, Autonomous Systems and Software Program – Humanities and Society (WASP-HS) is a ten-year research programme funded by the Wallenberg Foundations.</div> <div><br /></div> <div><a href="https://wasp-hs.org/news/graduate-school-a-future-of-groundbreaking-research/">Read more about the WASP-HS graduate school. </a></div> <div><br /></div>Mon, 05 Oct 2020 07:00:00 +0200https://www.chalmers.se/en/areas-of-advance/ict/news/Pages/Open-call-Affiliated-WASP-PhD-Student-Positions-in-AI.aspxhttps://www.chalmers.se/en/areas-of-advance/ict/news/Pages/Open-call-Affiliated-WASP-PhD-Student-Positions-in-AI.aspxOpen call: Affiliated WASP PhD Student Positions in AI<p><b>​The purpose of the call is to provide the opportunity for PhD students not funded by WASP to be part of the WASP Graduate School.</b></p>​<span style="background-color:initial">The Wallenberg AI, Autonomous Systems and Software Program announces a call for up to 15 affiliated WASP AI PhD student positions within AI at the five partner universities Chalmers, KTH, Linköping University, Lund University and Umeå University as well as the research groups at Örebro University and Uppsala University that are members of WASP AI. </span><div><br /></div> <div><span style="background-color:initial">To t</span><span style="background-color:initial">he </span><span style="background-color:initial">call: </span><a href="https://wasp-sweden.org/positions/affiliated-wasp-phd-student-positions-in-ai/">Affiliated WASP PhD Student Positions in AI​</a><br /></div> <div></div> <div><br /></div> <div><br /></div> <div><span style="background-color:initial">C</span><span style="background-color:initial">halmers' representative in WASP: <a href="/en/Staff/Pages/crnkovic.aspx">Ivica Crnkovic​​</a></span><br /></div> <div><span style="background-color:initial"><br /></span></div> <div><em>Wallenberg AI, Autonomous Systems and Software Program (WASP) is Sweden’s largest individual research program, a major national initiative for strategically motivated basic research, education, and faculty recruitment. The program addresses research on artificial intelligence and autonomous systems acting in collaboration with humans, adapting to their environment through sensors, information, and knowledge, and forming intelligent systems-of-systems. </em><br /></div> <a href="https://wasp-sweden.org/" target="_blank"><div>www.wasp-sweden.se</div></a>Fri, 25 Sep 2020 08:00:00 +0200https://www.chalmers.se/en/news/Pages/Areas-of-Advance-Award-for-wireless-centre-collaboration.aspxhttps://www.chalmers.se/en/news/Pages/Areas-of-Advance-Award-for-wireless-centre-collaboration.aspxAreas of Advance Award for wireless centre collaboration<p><b>​Collaboration is the key to success. Jan Grahn and Erik Ström, who have merged two Chalmers competence centres, GigaHertz and ChaseOn, to form a consortium with 26 parties, know this for sure. Now they receive the Areas of Advance Award 2020 for their efforts.</b></p>​<span style="background-color:initial">A competence centre is a platform for knowledge exchange and joint projects. Here, academia and external parties gather to create new knowledge and innovation. The projects are driven by need, and can be initiated from industry – who have a problem to solve – or from the research community, as new research results have generated solutions that may be applied in industry.</span><h2 class="chalmersElement-H2">Stronger as one unit</h2> <div>The competence centre GigaHertz focuses on electronics for high frequencies, while ChaseOn focuses on antenna systems and signal processing. They overlap in microwave technology research, which is relevant for communication and health care, as well as defense and space industry. And even if some areas differ between the two centres, numerous points of contact have been developed over the years. The two directors – Jan Grahn, Professor at Microtechnology and Nanoscience, and Erik Ström, Professor at Electrical Engineering – saw that close collaboration would result in obvious advantages. In 2017, the two centres therefore formed a joint consortium, bringing together a large number of national and international companies.</div> <div>“Formally, we are still two centres, but we have a joint agreement that makes it easy to work together”, says Erik Ström.</div> <div>“For Chalmers, it is a great strength that we are now able to see the whole picture, beyond departmental boundaries and research groups, and create a broad collaboration with the companies. This is an excellent example of how Chalmers can gather strength as one unit”, says Jan Grahn.</div> <h2 class="chalmersElement-H2">Multiplicity of applications</h2> <div>Technology for heat treatment of cancer, detection of foreign objects in baby food, antenna systems for increased traffic safety, components to improve Google’s quantum computer, 5G technology and amplifiers for the world’s largest radio telescope… The list of things that have sprung from the two competence centres is long. The technical development has, of course, been extreme; in 2007, as GigaHertz and ChaseOn were launched in their current forms, the Iphone hit the market for the very first time. Technology that today is seen as a natural part of everyday life – such as mobile broadband, now almost a necessity alongside electricity and water for most of us – was difficult to access or, at least, not to be taken for granted.</div> <div>The companies have also changed, which is noticeable in the flora of partners, not least for GigaHertz.</div> <div>“In the early 2000s, when our predecessor CHACH centre existed, the collaboration with Ericsson was dominant. Today, we collaborate with a much greater diversity of companies. We have seen an entrepreneurial revolution with many small companies, and even though the technology is basically the same, we are now dealing with a multiplicity of applications”, says Jan Grahn.</div> <div>As technology and applications developed and changed, the points of contact between the two centres grew, and this is also what initiated the merger:</div> <div>“When we started, in 2007, we were competing centres. The centres developed completely independently of each other, but have now grown into one. The technical convergence could not be ignored, we simply needed to start talking to each other across competence boundaries – which in the beginning was not so easy, even though today we view this as the obvious way forward”, says Erik Ström.</div> <h2 class="chalmersElement-H2">Research to benefit society</h2> <div>The knowledge centres are open organisations, where new partners join and collaborations may also come to an end. Several companies are sometimes involved together in one project. Trust and confidence are important components and take time to build. One ground-rule for activities is the focus on making research useful in society in the not too distant future.</div> <div>Chalmers Information and Communication Technology Area of Advance can take some of the credit for the successful collaboration between GigaHertz and ChaseOn, according to the awardees.</div> <div>“Contacts between centres were initiated when I was Director of the Area of Advance”, says Jan Grahn.</div> <div>“The Areas of Advance show that we can collaborate across departmental boundaries, they point to opportunities that exist when you work together.”</div> <h2 class="chalmersElement-H2">They believe in a bright future</h2> <div>The competence centres are partly financed by Vinnova, who has been nothing but positive about the merger of the two. Coordination means more research for the money; partly through synergy effects and partly by saving on costs in management and administration.</div> <div>The financed period for both GigaHertz and ChaseOn expires next year. But the two professors are positive, and above all point to the strong support from industry.</div> <div>“Then, of course, we need a governmental financier, or else we must revise the way we work. I hope that Vinnova gives us the opportunity to continue”, says Erik Ström.</div> <div>“The industry definitely wants a continuation. But they cannot, and should not, pay for everything. If they were to do so, we would get a completely different type of collaboration. The strength lies in sharing risks in the research activities by everyone contributing funds and, first and foremost, competence”, says Jan Grahn.</div> <h2 class="chalmersElement-H2">“Incredibly fun”</h2> <div>Through their way of working, Erik Ström and Jan Grahn have succeeded in renewing and developing collaborations both within and outside Chalmers, attracting new companies and strengthening the position of Gothenburg as an international node for microwave technology. And it is in recognition of their dynamic and holistic leadership, that they now receive the Areas of Advance Award.</div> <div>“This is incredibly fun, and a credit for the entire centre operation, not just for us”, says Erik Ström.</div> <div>“Being a centre director is not always a bed of roses. Getting this award is a fantastic recognition, and we feel great hope for the future”, concludes Jan Grahn.<br /><br /><div><em>Text: Mia Malmstedt</em></div> <div><em>Photo: Yen Strandqvist</em></div> <br /></div> <div><strong>The Areas of Advance Award</strong></div> <div>With the Areas of Advance Award, Chalmers looks to reward employees who have made outstanding contributions in cross-border collaborations, and who, in the spirit of the Areas of Advance, integrate research, education and utilisation. The collaborations aim to strengthen Chalmers’ ability to meet the major global challenges for a sustainable development.<br /><br /></div> <div><a href="/en/centres/ghz/Pages/default.aspx">Read more about GigaHertz centre</a></div> <div><a href="/en/centres/chaseon/Pages/default.aspx">Read more about ChaseOn centre​</a></div> <div>​<br />Areas of Advance Award 2019: <a href="/en/news/Pages/Areas-of-Advance-Award-given-to-research-exploring-the-structure-of-proteins.aspx">Areas of Advance Award for exploring the structure of proteins​</a></div> Thu, 10 Sep 2020 08:00:00 +0200https://www.chalmers.se/en/areas-of-advance/ict/news/Pages/AI-researchers-address-the-question-how-does-it-work.aspxhttps://www.chalmers.se/en/areas-of-advance/ict/news/Pages/AI-researchers-address-the-question-how-does-it-work.aspxAI researchers address the question – how does it work?<p><b>​Researchers around the world are focusing on the task of finding a theoretical framework that can explain how deep learning works in practice. Professor Giuseppe Durisi at Chalmers has accepted the challenge.</b></p>​<span style="background-color:initial">We have become used to computers that can be trained to accomplish intelligent tasks such as image and speech recognition and natural language processing. To explain how this training is performed, we can compare it to how a child learns. For example, a child needs to see a certain number of cats in order to build the general knowledge 'cat'.</span><div><br /></div> <div>Deep neural networks are trained in a similar manner. We feed them with example, which are used to adjust the parameters of the network, until the network delivers correct answers. When the network provides correct answers even when faced with new examples, that is, examples that were not used in the training phase, we know that it has acquired some general knowledge.</div> <div><br /></div> <div>Deep neural networks have achieved sensational results, but there is one fundamental problem that concerns researchers and experts. We see that they work, but we do not fully understand why. A common criticism is that deep learning algorithms are used as &quot;a black box&quot; – which is unacceptable for all applications that require guaranteed performance, such as traffic safety applications.</div> <div><br /></div> <div>”Right now, we lack the tools to describe why deep neural networks perform so well”, says Giuseppe Durisi, professor of Information Theory.</div> <div><br /></div> <div>Here is one of the mysteries about deep neural networks. According to established results in learning theory, we would expect deep neural networks to perform poorly when trained with the amount of data that is typically used.  But practice shows that this is perfectly fine.</div> <div><br /></div> <div>”It is even the case that if you make the network more complex – which according to established knowledge would impair its ability to generalize, the performance will sometimes improve.”</div> <div><br /></div> <div>There is no theoretically based explanation for why this occurs, but Giuseppe Durisi speculates with another analogy with human learning.</div> <div><br /></div> <div>”In order to reach a deeper understanding and thus the ability to generalize based on a large number of examples, we are required to overlook, or forget, a certain amount of details that are not important. Somehow, deep neural networks learn which part of the data is worth memorizing and which part can be ignored.” </div> <div><br /></div> <div>Many research groups around the world are now working hard to come up with a theory explaining how and why deep neural networks work. In connection with a major international conference in July this year, a competition was announced to see which research team can come up with theoretical bounds able to predict the performance of deep neural networks.</div> <div><br /></div> <div> Tools from many different research fields can be used to establish such a theory. Giuseppe Durisi hopes that information theory can be the right one.</div> <div><br /></div> <div>“Yes, information theory is my area of expertise, but it remains to be seen if we will succeed. That is how research works – and it is really exciting to apply the theory I am familiar with to address the completely novel challenge of understanding deep neural networks. It will keep us busy for a while.”</div> <div><br /></div> <div>Giuseppe Durisi has several research projects under way and collaborates with colleagues in other fields. Within the Chalmers AI Research Centre, he collaborates with Fredrik Hellström, Fredrik Kahl and Christopher Zach, and in a WASP project, Giuseppe Durisi and Rebecka Jörnsten from Mathematical Sciences have recently recruited a doctoral student, Selma Tabakovic, who will work on this problem.</div> <div><br /></div> <div>When Giuseppe Durisi reflects on the future, he sees that a greater understanding of deep learning can contribute with additional benefits – besides providing guaranteed performance in safety critical systems.</div> <div><br /></div> <div>”With a theoretical understanding of how deep learning works, we could build smaller, more compact, and energy-efficient networks that may be suitable for applications such as Internet-of-Things. It would contribute to increase the sustainability of such a technology.” </div> <div><br /> </div> <div><br /> </div> <div> </div> <div><div>Research projects</div> <div><strong>INNER: information theory of deep neural networks</strong></div> <div>Fredrik Hellström, Giuseppe Durisi and Fredrik Kahl</div> <div>Chalmers AI Research Centre (CHAIR)</div> <div><br /> </div> <div><strong>Generalization bounds of Deep Neural Networks: Insight and Design</strong></div> <div>Selma Tabakovic, Rebecka Jörnsten and Giuseppe Durisi</div> <div>Wallenberg AI, Autonomous Systems and Software Program (WASP)​</div></div> <div><br /> </div> <div><br /> </div> <div><br /> </div> <div>A deep neural network is a computer program that learns on its own. It is called &quot;neural network&quot; because its structure is inspired by the neural network that forms the human brain. Deep learning is a machine learning method, and part of what we call artificial intelligence. </div> <div><br /> </div> <div><strong>Illustration above:</strong> A deep neural network is fed with training data (in this case images) and the learning algorithms interpret the images through a number of layers – for each layer the degree of abstraction increases. Once the network has learned to identify combinations of patterns in the image – the system is able to distinguish a dog from a cat even on completely new images that were not included in the training material. </div> <div><br /> </div> <div><br /> </div> <div><br /> </div> <div></div>Tue, 01 Sep 2020 07:00:00 +0200https://www.chalmers.se/en/departments/cse/news/Pages/AI-agents-can-learn-to-communicate-effectively.aspxhttps://www.chalmers.se/en/departments/cse/news/Pages/AI-agents-can-learn-to-communicate-effectively.aspxAI agents can learn to communicate effectively<p><b>A multi-disciplinary team of researchers from Chalmers and University of Gothenburg has developed a framework to study how language evolves as an effective tool for describing mental concepts. In a new paper, they show that artificial agents can learn how to communicate in an artificial language similar to human language. The results have been published in the scientific journal PLOS ONE.</b></p>This research lies on the border between cognitive science and machine learning. There has been an influential proposal from cognitive scientists that all human languages can be viewed as having evolved as a means to communicate concepts in a near-optimal way in the sense of classical information theory. The Gothenburg researchers' method for training the artificial agents is based on reinforcement learning, which is an area of machine learning where agents gradually learn by interacting with an environment and getting feedback. In this case, the agents start without any linguistic knowledge and learn to communicate by getting feedback on how well they succeed in communicating a mental concept. <p></p> <br /><div><img src="/SiteCollectionImages/Institutioner/DoIT/News/AI%20PLOS%20ONE/MikaelAI.gif" class="chalmersPosition-FloatRight" alt="Mikael Kageback" style="margin:5px" />”In our paper we have studied how agents learn to name mental concepts and communicate by playing a several rounds of a referential game consisting of a sender and a listener. We have especially focused on the colour-domain which is well studied in Cognitive Science. The game works as follows; the sender sees a colour and describes it by uttering a word from a glossary to the listener which then tries to reconstruct the colour. Both agents receive a shared reward based on how precise the listener’s reconstruction was. The words in the glossary have no meaning at the outset; it is up to the agents to agree on the meaning of the words during multiple rounds of the game. We see that the resulting artificial languages are near-optimal in an information-theoretic sense and with similar properties as found in human languages”, says Mikael Kågebäck, researcher at Sleepcycle, and whose PhD-dissertation at Chalmers contained some of the results presented in the paper.</div> <br /><div>Together with Sayeed, researcher in computer linguistics at the Centre for Linguistic Theory and Studies in Probability (CLASP) at University of Gothenburg, and Devdatt Dubhashi, professor, and Emil Carlsson, PhD student, in the Data Science and AI division at the Department of Computer Science and Engineering, he has now published the results. </div> <div><br /></div> <div><img src="/SiteCollectionImages/Institutioner/DoIT/News/AI%20PLOS%20ONE/AsadAI.gif" class="chalmersPosition-FloatRight" alt="Asad Sayeed" style="margin:5px" />”From a practical viewpoint, this research provides the fundamental principles to develop conversational agents such as Siri and Alexa that communicate with human language”, says Asad Sayeed.<br /><div>The underlying idea of learning to communicate through reinforcement learning is also interesting for research in social and cultural fields, for example for the project GRIPES, which studies dog whistle politics, and is led by Asad Sayeed. <span style="display:inline-block"></span></div></div> <div><div> </div> <h2 class="chalmersElement-H2">Useful in future research studies</h2> <div> <img src="/SiteCollectionImages/Institutioner/DoIT/News/AI%20PLOS%20ONE/DevdattAI.gif" class="chalmersPosition-FloatRight" alt="Devdatt Dubhashi" style="margin:5px" />”Cognitive experiments are very time consuming, as you often need to carry out careful experiments with human volunteers. Our approach provides a very powerful, flexible and inexpensive approach to investigate these fundamental questions. The experiments are fully under our control, repeatable and totally reliable. Thus our computational framework provide a valuable tool to investigate fundamental questions in cognitive science, language and interaction. For computer scientists it is a fertile area to explore the effectiveness of various learning mechanisms”, says Devdatt Dubhashi.</div> <div> </div></div> <div><br /></div> <div><img src="/SiteCollectionImages/Institutioner/DoIT/News/AI%20PLOS%20ONE/EmilAI.gif" class="chalmersPosition-FloatRight" alt="Emil Carlsson" style="margin:5px" /></div> <div><br /></div> <div>“In the future, we want to investigate whether agents can develop communication similar to human language in other areas as well. One example is if our agents are able to reconstruct the hierarchical structures we observe in human language”, says Emil Carlsson. <br /></div> <div><br /></div> <div><h2 class="chalmersElement-H2">Long-standing question</h2></div> <div>The study stems from a long-standing central question in cognitive science and linguistics: whether, in all of the vast diversity of human languages, there are common universal principles. Classic work from the 20th century indicated that there were common properties in different languages in words to describe colours. Are there underlying principles accounting for these common properties? </div> <div>A recent influential proposal from cognitive scientists is that there are indeed such common universal principles when viewed from the lens of information theory when languages are viewed as a means to communicate mental concepts making the most efficient use of resources. </div> <div>A series of talks given at CLASP by Ted Gibson from MIT back in 2016, where he <a href="http://tedlab.mit.edu/culture_cognition.html">described results from experiments on human subject</a>s chosen from different societies and cultures around the world, led to the question ‘what if the human subjects were substituted by artificial computer agents? Would they develop a language with similar universal properties?'</div> <div><div><br /></div> <div><a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0234894">Link to the article in PLOS ONE</a>.<br /></div> <div><br /></div> <h2 class="chalmersElement-H2">Contact<br /></h2> <div>Asad Sayeed, researcher researcher in computer linguistics, Department of Philosophy, Linguistics, Theory of Science. <br /><a href="mailto:asad.sayeed@gu.se">asad.sayeed@gu.se</a></div> <div><br />Devdatt Dubhashi, professor, Data Science and AI division, Department of Computer Science and Engineering, Chalmers and University of Gothenburg. <br /><a href="mailto:dubhashi@chalmers.se">dubhashi@chalmers.se</a></div> <div><br />Emil Carlsson, PhD Student, Data Science and AI division, Department of Computer Science and Engineering, Chalmers and University of Gothenburg.<br /><a href="mailto:%20caremil@chalmers.se">caremil@chalmers.se</a></div> </div> <div><br /></div> <div>By <br />Monica Havström <br />Communications officer, Department of Philosophy, Linguistics and Theory of Science, University of Gothenburg. <br />Phone: +46 31-786 30 42 <br /> <br />Anneli Andersson <br /><div>Communications officer, Department of Computer Science and Engineering, Chalmers and Unitversity of Gothenburg.</div> <div>Phone: +46 31-772 10 29<br /></div></div> ​Wed, 15 Jul 2020 10:00:00 +0200https://www.chalmers.se/en/departments/mc2/news/Pages/Ten-million-for-increased-exchange-with-Taiwan.aspxhttps://www.chalmers.se/en/departments/mc2/news/Pages/Ten-million-for-increased-exchange-with-Taiwan.aspxTen million to develop communication systems of the future<p><b>​Niklas Rorsman, research professor at the Microwave Electronics Laboratory at MC2, receives 10 MSEK in research grant from the Swedish Foundation for Strategic Research (SSF). Now, he has the opportunity to develop his cooperation with Taiwan.</b></p>&quot;We are very happy! You are always pleasantly surprised when applications are granted. This is especially true of SSF's calls where competition is always hard. In this call, there were many applicants, so the chance that our application would be welcomed so positively was relatively small&quot;, says Niklas Rorsman.<br /><br /><img src="/SiteCollectionImages/Institutioner/MC2/News/nrorsman_350x305.jpg" class="chalmersPosition-FloatRight" alt="Picture of Niklas Rorsman." style="margin:5px" />He is funded with SEK 10 million for the new project &quot;Advanced GaN Devices for mm and sub-mm-wave communication&quot;.<br />&quot;We will try to optimize GaN transistors to operate at very high frequencies with the goal of being able to deliver enough output for the communication systems of the future. In the project, we will develop new materials and explore new component concepts to achieve this goal. We will be very dependent on the clean room and our measuring laboratory to be able to try and evaluate new ideas&quot;, explains Niklas.<br /><br />SSF awards a total of SEK 60 million to strengthen research collaboration with Taiwan in various projects. It is a new venture that complements the cooperation that SSF already has with Japan and South Korea.<br />&quot;I look forward to the fruition of this massively expanded collaboration between Swedish and Taiwanese researchers, including benefits to interacting industry with market opportunities stemming from innovations and scientific advances made in the projects&quot;, says professor and SSF CEO Lars Hultman in a press release.<br /><br />For Niklas Rorsman's part, a golden opportunity now arises to extend his existing exchange with Taiwan, by means of personnel, materials and knowledge:<br />&quot;We have long had a relatively close relationship with a group at National Chiao Tung University (NCTU) in Taiwan. So far, it has resulted in some &quot;dual-degree&quot; dissertations and we have had several guest doctoral students, who have been at Chalmers for about a year and worked with us in our projects&quot;, says Niklas.<br /><br />The hope is that doctoral students and researchers will be able to periodically spend time as guest researchers in Taiwan.<br />&quot;Taiwan is an interesting country to work with. They are one of the world's largest exporters of semiconductor technology&quot;, says Niklas.<br /><br />He describes himself as a country guy and a research professor who is most comfortable with lab work.<br />&quot;I am not so fond of air travel, but it might be necessary to travel to Taiwan now...&quot;<br /><br />Niklas Rorsman is one of only two Chalmers researchers to get support in this call, which received a total of 49 applications, of which six were granted. His happy colleague is Marianna Ivashina, professor at the Department of Electrical Engineering. She receives 10 million SEK for her project &quot;Antenna Technologies for Beyond-5G Wireless Communication&quot;.<br /><br />Text: Michael Nystås<br />Photo: Anna-Lena Lundqvist<br /><br /><div><a href="https://strategiska.se/en/press-release/60-million-for-swedish-taiwanese-research-collaboration">Read press release from SSF</a> &gt;&gt;&gt;</div> <div><br /></div> <div><a href="/en/departments/e2/news/Pages/10-million-grant-to-antenna-research.aspx">Read more about Marianna Ivashina's grant</a> &gt;&gt;&gt;<br /></div>Thu, 25 Jun 2020 09:00:00 +0200