SCCS Kolloquium

The SCCS Colloquium is a forum giving students, guests, and members of the chair the opportunity to present their research insights, results, and challenges. Do you need ideas for your thesis topic? Do you want to meet your potential supervisor? Do you want to discuss your research with a diverse group of researchers, rehearse your conference talk, or simply cheer for your colleagues? Then this is the right place for you (and you are also welcome to bring your friends along).

Upcoming talks

Koichiro Hida: Parameterized Koopman operator models for crowd dynamics

SCCS Colloquium |


There has been growing interest in crowd dynamics modelling, driven especially by its relevance in various fields including urban planning, safety measure and event management. The central objective within this field is to understand how group of people behave collectively due to the interactions, movements and responses to environmental factors. The recent progress in machine learning has significantly impacted crowd dynamics modelling, utilizing vast amount of data from sensors, digital devices and simulations. Data-driven methods have demonstrated the ability to achieve more flexible and precise predictions of dynamics, even without knowing the governing equation of the systems.

This study focuses on crowd dynamics modelling with a data-driven method, the Koopman operator, which is an infinite dimensional linear operator that acts on functions defined on the state space of a dynamical system. The primary objective is to parameterize the Koopman operator to accommodate variable geometries and conditions in crowd dynamics prediction. The Koopman operator offers insights into system dynamics through eigencomponents via extended dynamic mode decomposition, a novel method to approximate the infinite dimensional Koopman operator with linear combination of eigenfunctions, eigenvalues and modes in infinite dimension.

The data on crowd dynamics is gathered using Vadere, an open-source crowd simulation software. Through the Koopman operator, the essential components of the dynamic system are identified, represented by eigenfunctions. It enabled successful predictions of unknown crowd behaviour. Further investigation of the eigencomponents of the Koopman operator is conducted to characterize coherent structures in the dynamic systems. The Koopman eigenfunctions reveal wave-like data intrinsic patterns and the parameter-dependent trends in crowd behaviours.

Master's thesis presentation. Koichiro is advised by Prof. Dr. Felix Dietrich.


You don't want to miss a talk? Subscribe to our mailing list and our Colloquium calendar .

Contribute a talk

To register and schedule a talk, you should fill the form Colloquium Registration at least two weeks before the earliest preferred date. Keep in mind that we only have limited slots, so please plan your presentation early. In special cases, contact colloquium@mailsccs.in.tum.de.

Colloquium sessions are now on-campus. We have booked room MI 02.07.023 for SS2024. You can either bring your own laptop or send us the slides as a PDF ahead of time. The projector only has an HDMI connection, so please bring your own adapters if necessary.

Do you want to attend but cannot make it in person? We now have a hybrid option. Simply join us through this BBB room: https://bbb.in.tum.de/shu-phv-eyq-rad

We invite students doing their Bachelor's or Master's thesis, as well as IDP, Guided Research, or similar projects at SCCS to give one 20min presentation to discuss their results and potential future work. The time for this is typically after submitting your final text. Check also with your study program regarding any requirements for a final presentation of your project work.

New: In regular times, we will now have slots for presenting early stage projects (talk time 2-10min). This is an optional opportunity for getting additional feedback early and there is no strict timeline.

Apart from students, we also welcome doctoral candidates and guests to present their projects.

During the colloquium, things usually go as follows:

  • 10min before the colloquium starts, the speakers setup their equipment with the help of the moderator. The moderator currently is Ana Cukarska. Make sure to be using an easily identifiable name in the online session's waiting room.
  • The colloquium starts with an introduction to the agenda and the moderator asks the speaker's advisor/host to put the talk into context.
  • Your talk starts. The scheduled time for your talk is normally 20min with additional 5-10min for discussion.
  • The moderator keeps track of the time and will signal 5 min before the end of time.
  • During the discussion session, the audience can ask questions, which are meant for clarification or for putting the talk into context. The audience can also ask questions in the chat.
  • Congratulations! Your talk is over and it's now time to celebrate! Have you already tried the parabolic slides that bring you from the third floor to the Magistrale?

Do you remember a talk that made you feel very happy for attending? Do you also remember a talk that confused you? What made these two experiences different?

Here are a few things to check if you want to improve your presentation:

  • What is the main idea that you want people to remember after your presentation? Do you make it crystal-clear? How quickly are you arriving to it?
  • Which aspects of your work can you cover in the given time frame, with a reasonable pace and good depth?
  • What can you leave out (but maybe have as back-up slides) to not confuse or overwhelm the audience?
  • How are you investing the crucial first two minutes of your presentation?
  • How much content do you have on your slides? Is all of it important? Will the audience know which part of a slide to look at? Will somebody from the last row be able to read the content? Will somebody with limited experience in your field have time to understand what is going on?
  • Are the figures clear? Are you explaining the axes or any other features clearly?

In any case, make sure to start preparing your talk early enough so that you can potentially discuss it, rehearse it, and improve it.

Here are a few good videos to find out more:

Did you know that the TUM English Writing Center can also help you with writing good slides?

Work with us!

Do your thesis/student project in Informatics / Mathematics / Physics: Student Projects at the SCCS.