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ELLIS Delft Talk by Javier Alonso-Mora

ELLIS Delft Talk by Javier Alonso-Mora 12 April 2022 16:00 (NOTE: the meeting moved from 5th -> 12th) This will be a hybrid meeting This meeting is open for all interested researchers. Motion Planning among Decision-Making Agents: Trajectory Optimization with Learned Cost Functions Abstract We move towards an era of smart cities, where autonomous vehicles will provide on-demand transportation while making our streets safer and mobile robots will coexist with humans. The motion plan of mobile robots and autonomous vehicles must, therefore, account for the interaction with other agents and consider that they are, as well, decision-making entities. For example, when humans drive a car, they are fully aware of their environment and how other drivers and pedestrians may react to their future actions. Towards this objective I will discuss several methods for motion planning and multi-robot coordination that leverage constrained optimization and reinforcement learning to achieve interactive behaviors with safety guarantees. Namely: using inverse reinforcement learning and social value estimation to achieve social behaviors; employing a learned policy to guide the motion planner in dense traffic scenarios or for information gathering; achieving social trajectories by learning a cost function from a dataset of human-driven vehicles; and learning to communicate the relevant information for multi-robot coordination. The methods are of broad applicability, including autonomous vehicles and aerial vehicles. Bio Javier Alonso-Mora is an Associate Professor at the Department of Cognitive Robotics of the Delft University of Technology, the director of the Autonomous Multi-robots Laboratory, a Principal Investigator at the Amsterdam Institute for Advanced Metropolitan Solutions and co-founder of The Routing Company. Previously, he was a Postdoctoral Associate at the Computer Science and Artificial Intelligence Lab (CSAIL) of the Massachusetts Institute of Technology. He received his Ph.D. degree in robotics from ETH Zurich, in partnership with Disney Research Zurich. He serves as associate editor for Springer Autonomous Robots, and has served as associate editor for the IEEE Robotics and Automation Letters, the Publications Chair for the IEEE International Symposium on Multi-Robot and Multi-Agent Systems 2021 and associate editor for ICRA, IROS and ICUAS. He is the recipient of several prizes and grants, including an ERC Starting Grant (2021), the ICRA Best Paper Award on Multi-robot Systems (2019), an Amazon Research Award (2019) and a talent scheme VENI award from the Netherlands Organisation for Scientific Research (2017). More info: https://www.autonomousrobots.nl/ To join this event, please contact Frans Oliehoek .

Product Evaluation Laboratory (PEL)

The Product Evaluation Laboratory, also referred to as the PEL or Product Lab , is a research facility within TU Delft. It offers services and facilities for conducting consumer research. It is special in the fact that it has its own consumer panel. Become a member Click here to join the PEL panel. You can register from the age of 16. Take a look inside: Panel members More information for panel members can be found here. On this page you can change your personal details and/or register for our panel. Research Information about completed, ongoing and upcoming research can be found here. Researchers More information for researchers, such as our facilities and the types of studies we support, can be found here. Contact Find out about how to get in touch with us here.

van Duijvenbode, J.R.

Profile TU Delft (2018 – current) Ph.D. candidate in Resource Engineering I obtained a MSc degree in the European Mining Course (EMC) from Delft University of Technology, Aalto University and RWTH Aachen. My master thesis was about: Development and Validation of Short-term Mine Planning Optimization Algorithms for a Sublevel Stoping Operation with Backfilling. Research PhD research into the behavioural Geology – Understanding how differences in geology influence metallurgical performance. The research topic consists of integrating collected information on metallurgical properties, directly or through proxies back into the resource model. The consideration of metallurgical costs is the only way forward to obtain truly optimized mining decisions, accounting for constraints and bottlenecks in the comminution circuit and chemical processing plant. This is important to better characterize metallurgical behavior of the plant feed, which allows for a morel optimal selection of process control settings. The envisioned solution will result in an increased recovery in combination with a lower utilization of energy and chemicals per tonne of processed material (lower environmental footprint). Consequently, overall OPEX will drop making lower grade ore economic while increasing the mineral resources that are available for conversion to ore reserves (lesser need to open up new mines). Moreover, a better characterization of mining blocks reduces the unintended processing of waste due to lower overall classification errors. Copromotor: Dr. M. Soleymani Shishvan Promotor(s): Dr. M. Buxton and Prof. Jan Dirk Jansen Jeroen van Duijvenbode PhD Candidate + 31 15 27 82262 J.R.vanDuijvenbode@tudelft.nl Faculty of Civil Engineering and Geosciences Building 23 Stevinweg 1 / PO-box 5048 2628 CN Delft / 2600 GA Delft Room number: 3.21

Research

ELLIS Delft Talk by Guillaume Rongier

ELLIS Delft Talk by Guillaume Rongier Going beyond empirical relationships in geology: The example of total organic carbon 01 February 2022 16:00 Abstract While machine learning has a long history in geology, empirical relationships remain widely used. Through the example of total organic carbon (TOC), this talk will illustrate the close links between empirical relationships and machine learning, and the benefits of turning to machine learning. TOC is a measure of the proportion of organic carbon in rock samples typically gathered from boreholes. It can be used to assess the potential for hydrocarbons, understand rock mechanics, or assess reducing conditions for basin-hosted mineral systems, and is paramount when seeking to understand variations in paleo-environmental conditions. Since gathering and analyzing rock samples is expensive, empirical relationships have been developed to predict TOC from well logs, which are based on more widely available geophysical measurements into boreholes. Those empirical relationships come from geological and petrophysical principles implemented in mathematical models manually fitted to the data. This leads to several limitations, mainly poor generalization, inability to quantify uncertainties, time-consuming and subjective calibration that leads to reproducibility issues. But those empirical relationships can be rewritten as linear regressions, a simple change that solves many of the previous limitations. Turning to more advanced machine learning methods improves predictions by taking into account the non-linearity and variability in the data. Using the expert knowledge behind empirical relationships as input besides well logs improves the predictions as well: this shows that leveraging geological and petrophysical concepts through feature selection and engineering boosts machine learning performances. To join this event, please contact Frans Oliehoek .

How to present to keep your audience's attention | 19 April

How to present to keep your audience's attention | 19 April 19 April 2022 15:00 till 16:00 - Location: Auditorium - By: 3ME An inspirational session with Mark Robinson, known for his TED talk . What makes a great presentation? Why are so many workplace presentations so boring?! And what can you do to ensure that, the next time you give a presentation, you keep everyone's attention, from your first word to the last? Mark Robinson , TEDx speaker, presentation skills trainer, author and coach will share with us: The three essential elements of a great presentation; What question you need to ask yourself when preparing your presentation and; How to start your presentation to get everyone listening! This will be an interactive, fun and, above all, practical session. Sign up if you want to join!

Opening up and open access to DOCOMOMO information

Modern buildings that are threatened with demolition or disfigurement are regularly brought to the attention of DOCOMOMO International. In many cases the international DOCOMOMO community plays an important role in the preservation of these threatened buildings. To make the knowledge and information available for everyone, a lot of the material is made available online.

TRANSFORM-CE

Design researchers from TU Delft work together with the municipalities of Almere and Manchester to investigate how to increase the recycling rate of single use plastic (through injection-extrusion moulding and 3D printing), as well as to enhance uptake of recycled plastics by business and consumers.

Education

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Do something that matters

We komen in Nederland in het basis- en voorgezet onderwijs samen 13.500 leraren tekort. Het leraarschap heeft niet altijd de reputatie die het verdient. En dat terwijl het alles in zich heeft. Daarom startte Universiteiten van Nederland (UNL) vorig week de campagne ‘Doe iets wat ertoe doet’. Het doel is om mensen met een nieuwe blik naar het leraarschap te laten kijken.

All renewed BK bachelor courses relate to Sustainable Development Goals

All 24 courses in BK’s renewed bachelor’s programme are now connected to at least one Sustainable Development Goal (SDG). The most prevalent SDG in this new programme is SDG 11 (Sustainable Cities and Communities), followed by SDG 4 (Quality Education) and SDG 15 (Life on Land). In total, 14 of the 17 SDGs are linked to at least one course: a starting point for better integrating sustainability in the courses’ contents, assignments and teaching materials.

2nd round of the 2024 SPRINT funding call with São Paulo, Brazil

The second round of the 2024 SPRINT call has opened . This SPRINT (São Paulo Researchers in International Collaboration) fund supports exchange visits and/or joint workshops undertaken by TU Delft staff and researchers from the State of São Paulo, Brazil. SPRINT funds the initial phase of joint international research collaborations with clear expectations that the researchers will submit a follow-up research proposals that continues the research started under SPRINT and consolidates the research partnership. The deadline for the 2024.2 edition is October 28, 2024.The total duration of a project can be 1 year, and the budget envelope is up to 7,500 Euro from TU Delft and up to 10,000 USD from FAPESP. FAPESP and TU Delft will fund a maximum of 4 approved proposals under this call. Please note that the Brazilian partners must have a current project funded by FAPESP to be eligible. Applicants need to send an application to both FAPESP and TU Delft. See full details in the call conditions. More information from FAPESP on past and present SPRINT calls can be found here. Questions on the call can be directed to Daphne van de Sande at D.vandeSande@tudelft.nl or Marie Kummerlowe at a.m.kummerlowe@tudelft.nl . SPRINT 2024.2 – Guidelines Delft University of Technology

Cutting-Edge Multi-Camera System for Multi-Modal Data Capture

Researchers from the Intelligent Systems department have built an advanced multi-camera capture system designed for high-quality data collection from objects and people. By incorporating existing audio devices, this system enables the recording of multi-modal data from human social interactions including both video and audio, offering invaluable resources for understanding human behavior, modeling physical objects, and analyzing human-object interactions. 

Breaking the bubble in Buitenhof: TU student explores the connecting power of a mural

Op 16 september onthulde burgemeester Marja van Bijsterveld officieel de nieuwe muurschildering ‘Cherished’, op de flat aan de Haydnlaan in Buitenhof. TU Student Virginia Facciotto deed voor haar master ‘Design for Interaction’ een half jaar onderzoek naar de vraag wat de waarde van een mural is voor de wijk: “De muurschildering kan zeker bijdragen aan een positief beeld over de wijk, maar dan moet wel het hele verhaal verteld worden.”

Unconscious Bias session during Summer Introduction Programme (18-22 August 2024)

As part of Summer Introduction Programme , our colleagues Fatima Ait Bari and Stavroula Manolaki of the Diversity & Inclusion (D&I) Office gave an engaging presentation on Unconscious bias. The audience consisted of a group of master’s, exchange and bridging students, many from the international community, arriving at TU Delft this academic year 2024-2025. The session had as a goal to take the students along a “journey” of exploring how unconscious biases are formed, how they influence our interactions, and how we can become more aware of them. Participants were encouraged to reflect on their own biases and consider how they hinder their connection with people with diverse perspectives. Through interactive discussions and scientific insights, the presentation emphasized the importance of focusing on shared similarities to foster inclusive relationships. The D&I colleagues guided the students through a thought-provoking journey, helping them take steps toward greater inclusion and understanding in both academic and social environments. The presentation ended with encouraging the students to “Get together on the basis of our similarities; to grow on the basis of our differences”. We wish all new master, exchange and bridging students a successful and enjoyable academic year at TU Delft!

Fresh from Cafe X, not from the delivery service: food deliveries are not allowed

Geen eten bezorgen bij X
We hebben een nieuwe regel opgenomen in de huisregels van X met betrekking tot het nuttigen van afhaalmaaltijden bij X. Het is niet toegestaan om eten te laten bezorgen door een bezorgdienst en dit op het terrein te nuttigen. Je bent natuurlijk wel van harte welkom in Café X voor een hapje en een drankje.

Equity, Diversity & Inclusion Month 2024

In oktober 2024 viert de TU Delft de EDI-maand met als thema: United for Change, Together We Grow. Gedurende de hele maand biedt het Diversity & Inclusion office in samenwerking met de faculteiten, netwerken en serviceafdelingen workshops, trainingen en andere evenementen georganiseerd door en in de meeste gevallen aangeboden door collega's binnen de TU Delft.

NWO grants funding for innovative research on physical experimental environments

How to move from experiment to mainstream? A consortium led by professor Tamara Metze, has been awarded a prestigious grant from the Netherlands Organisation for Scientific Research (NWO). In search for pathways toward more sustainable futures, Metze and her team will explore how various innovations in field labs such as The Green Village, in urban living labs such as Engy Lab South-East in Amsterdam, and in all sorts of citizens’ initiatives, can be mainstreamed and make more impact on sustainability transitions. Pilot paradox The project ‘From EXperiment to sustainable change: TRAnsformative methodologies for Innovation and learning’ (EXTRA) seeks to overcome a persistent “pilot paradox”. In this paradox, much experimentation takes place but long-term systemic impact remains difficult. Researchers together with all sorts of change makers will synthesise existing knowledge on how to mainstream, upscale, spread, broaden and deepen developed innovations. Tamara Metze: ‘I am excited to unravel what are effective ways of cocreation that lead to mainstreaming the positive changes made in experimental environments. We will figure out how learning and innovation can lead to lasting changes in regulations, policies, and financial systems and the biophysical environment.’ Tamara Metze Read the NWO press release Actionable tools The project is crucial for accelerating sustainability transitions. By refining methodologies for mission-driven experimentation and develop hands on tools for all sorts of change-makers, it will be easier to mainstream the sustainable lessons and innovations. ‘These tools will not only aid grassroots innovators but also influence institutional and organisational structures, ensuring that lessons learned from experiments are better anchored in policies, regulations, and organisations’, explains Metze. The project will employ a transdisciplinary action research approach, bringing together knowledge from various disciplines and policy domains. By co-creating solutions with public and private partners, the research will have an immediate impact. In the long term, the project aims to build a more efficient innovation ecosystem, contributing to more impactful and sustainable outcomes for both society and the environment. Projectpartners TU Delft, VU Amsterdam, Wageningen University & Research, Hogeschool van Amsterdam, Erasmus Universiteit Rotterdam, Hogeschool Rotterdam, The Green Village, AMS Institute; PBL Planbureau voor de Leefomgeving, WoonFriesland, Dijkstra Draisma, Provincie Noord-Holland, Ministerie van Binnenlandse Zaken, PRICE / Almere, BouwLab, Alliantie Samen Nieuw-West, Innovation Quarter.

Interview Eveline Vreede with Digitaal Veilig Den Haag

Eveline Vreede is the Managing Director of our Safety & Security Institute. She is responsible for collaborations, programs and the development of the Safety & Security theme at TU Delft | Campus The Hague. Among other things, she connects the institute with government agencies. Digitaal Veilig Den Haag spoke with her about the institute's activities in the field of digital security.

TU Delft Excellence Fund supports Prof. Stefan de Witte and Dr Anasua Chatterjee

With support from the TU Delft Excellence Fund, two prominent scientists recently started their work at TU Delft. As per September, Prof. Stefan de Witte has been appointed Professor of Optics for Nanoscale Metrology at the department of Imaging Physics.

Researchers Use an EUV Flashlight and Free-Air Diffusion, Plus a Clever Algorithm, to Inspect Chips

Postdoc Yifeng Shao (ImPhys) and his colleagues from Delft and Utrecht University have investigated a new imaging technique using extreme ultraviolet light to study the three-dimensional structures of chips at the nanoscale.

Outstanding Paper Award on Scientific Understanding in RL

M. Suau, M. T. J. Spaan, and F. A. Oliehoek were awarded the Outstanding Paper Award on Scientific Understanding in RL at the first Reinforcement Learning Conference (RLC).

Professor of Urban Design Tess Broekmans: ‘Designers must learn to listen better’

Tess Broekmans, co-owner of Urhahn urban design and strategy, delivered her inaugural address as professor of Urban Design on Friday 6 September. In it, she addressed ‘the complexity of the everyday’. After all, how can designers' visions connect better with people's everyday lives? In doing so, she also sees a new role for area developers.

2 Veni Grants for the ELLIS Unit

In an effort to make new and strengthen existing connections, a delegation of ELLIS Unit Delft visited ELLIS Munich and some of the most renowned AI research institutions in Munich area on the 25th and 26th of January 2024. The delegation consisted of people from TU Delft’s cognitive robotics department, and the sequential decision making group.

Unusual waves grow way beyond known limits

Waves that come from multiple directions are extremer than extreme. These remarkable deep-sea waves can be four times steeper than what was previously imagined, as is shown in research by TU Delft and other universities that was published in Nature today. A long time ago, stories were told of mysterious rogue waves that materialised out of nowhere and could topple even the largest ships. These waves lost their mythical character when the first rogue wave was recorded at the Draupner platform in the North Sea. In 2018, Ton van den Bremer and his colleagues at the Universities of Edinburgh and Oxford managed to recreate the Draupner wave in the lab for the first time ever, and this opportunity to study freak waves closely produced unexpected insights. Multiple waves push up water New research by the research consortium now shows that these remarkable waves do not break when traditional theories hold they should, the secret behind which lies in how they arise. Ton van den Bremer, expert on fluid mechanics at TU Delft and led the study, explains: “When most people think of waves, they think of the rolling waves you’d find on a beach. The type of wave we studied occurs in open water and arises when waves coming from multiple directions come together. When these waves with a high directional spread converge, the water is pushed upwards, forming a partially standing wave. An example of this is known as a crossing wave. How crossing waves arise Under certain conditions at sea, waves from multiple directions occur. This can happen in a place where two seas meet, or where winds suddenly change direction, as in a hurricane. When waves from two directions meet, a cross wave occurs, provided their directions are far enough apart. The study also shows that the further apart the directions are, the higher the resulting cross-wave. Travelling waves break when they reach a certain limit, this is when they reach their maximum steepness. The study shows that waves with a multidirectional spreading can get as much as 80% steeper than this limit before they start breaking, which means they can get almost twice as high as ‘normal waves’ before they start to break. Travelling wave (l) and a wave with high directional spreading (r) Breaking waves that grow Next, the researchers found another highly unusual phenomenon that defies existing theories, a phenomenon that is unprecedented according to Van den Bremer: “Once a conventional wave breaks, it forms a white cap, and there is no way back. But when a wave with a high directional spreading breaks, it can keep growing.” The study shows that these enormous waves can grow to twice their original steepness while breaking, which is already twice bigger than the conventional limit. Together, the waves can grow four times steeper than previously thought possible. Damage to offshore structures The knowledge that multidirectional waves can become as much as four times larger than was deemed possible can help design safer marine structures. "The three-dimensionality of waves is often overlooked in the design of offshore wind turbines and other structures in general; our findings suggest this leads to designs that are less reliable", says Mark McAllister of the University of Oxford, who led the experiments and is now a senior scientist at Wood Thilsted. Innovative vertical sensors made it possible to take accurate 3D measurements of waves. Innovative 3D measurement method A 3D measurement method developed in the FloWave lab paved the way for these new insights. “Conventional 2D wave measurement methods weren’t up to the task”, Van den Bremer explains, which is why the research group designed a new way to create 3D wave measurements. Ross Calvert of the University of Edinburgh: “This is the first time we've been able to measure wave heights at such high spatial resolution over such a big area, giving us a much more detailed understanding of complex wave breaking behaviour." FloWave Ocean Energy Research Facility in Edinburgh. The circular basin has a diameter of 25 metres and can be used to generate waves from multiple directions. Header image by: Fabien Duboc

A strong nose for trouble

Ammonia gas – it is both highly poisonous and corrosive, yet also often used in industry, or present around intensive livestock farming. To better mitigate the risks of ammonia leaks, Paddy French together with Lina Sarro and Sten Vollebregt will make smaller, more robust and eventually more affordable ammonia sensors. The NWO OTP programme has funded their research into a fully-integrated, single-chip sensor that incorporates two porous silicon carbide structures for detecting ammonia and humidity, all in a single layer and one etch step.

Stefan Witte joins Imaging Physics as professor

Delft University of Technology's Executive Board has appointed Stefan Witte as professor of Optics for nanoscale metrology in the Imaging Physics department of the Faculty of Applied Sciences as of September 2024. Thanks to the TU Delft Excellence Fund, Stefan Witte can get off to a flying start with his new research group and expects to obtain the first research results soon.

October 2024: Equity, Diversity & Inclusion Month

Theme: “United for Change, Together we Grow” The EDI Month programme focuses on bringing together people from different backgrounds, perspectives, and opinions to foster an environment where meaningful conversations and innovative ideas can flourish. From interactive workshops on diversity and teamwork to inclusive leadership training, all with an emphasis on “practical learning” and free of charge . Curious about what's on offer? Visit the online calendar for a full overview of the events and sign up.

SPTL contributions at European Transport Conference (ETC) (18-20 September, Antwerp)

The 2024 edition of the European Transport Conference (ETC) will be held from 18-20 September at University of Antwerp, Belgium. The following Smart PT Lab contributions will be presented: Passenger preferences for (emerging) public transport access/egress modes Nejc Gerzinic, Mark van Hagen, Hussein Al Tamimi, Dorine Duives, Niels van Oort [Abstract] - [Slides] An application of Latent Class Analysis to explore the impact of sociodemographics on travel behaviour profiles – the importance of sociodemographics in transport policy Nadine Martje Eichenauer, Niels van Oort, Bert van Wee, Jan Anne Annema [Abstract] - [Slides] Towards a Global Standard for Estimating Life Cycle Greenhouse Gas Emissions from Public Transport Services Marko Kapetanovic, Niels van Oort [Abstract] - [Slides] The full program can be found here: https://aetransport.org/etc/programme