People

Group Picture

People

Alexander Ecker
Professor of Data Science / Principal Investigator

I want to understand how neural systems perform visual perception. At the interface of computer vision and neuroscience, I try to understand both how biological vision works and how to teach computers to make sense of images. I use an interdisciplinary approach that combines methods from machine learning and computer vision with behavioral studies and neuronal population recordings in the brain.
+49 551 39 21272
Room: 2.137

Marita Schwahn
Team assistant


+49 551 39 21160
Room: 2.140

Timo Lüddecke
Postdoc / Project Leader

My research focuses on applying scalable machine learning methods to perceive, understand and represent dynamic scenes. Particularly, I am interested in techniques for sample-efficient and unsupervised learning. My long-term goal is to enable systems to act autonomously - so I can watch them while they do my work.
Room: 2.132

Marissa Weis
Postdoc

My research goal is to understand how visual perception in the brain works and how to apply this knowledge to improve perception in artificial neural networks. I work at the intersection of computational neuroscience and machine learning. I’m especially interested in unsupervised representation learning and to understand how the notion of objects arises in visual perception in biological systems and how we can use this knowledge to improve scene understanding of artificial neural networks.
Room: 2.127

Martin Ritzert
Postdoc

Coming from graph learning and learning theory, I am interested in ways to use machine learning techniques to solve actual scientific questions in physics and biology. Furthermore, I like to think about ways in which we can use deep learning to solve or approximate NP hard problems such as graph coloring.
Room: 1.116
Website

Felix Benjamin Müller
PhD Student

Obtaining labels for data is an expensive and cumbersome process, so we should make the most out of the data we have. I am interested in effort-efficient learning for computer vision tasks, particularly video understanding. With a background in computer vision and natural language processing, I want to utilize self-supervised pretraining to get better models with less labeled data. I use these methods to build models for behavior analysis of monkeys in the wild, helping researchers in the field with their data analysis.
Room: 1.111

Laura Hansel
PhD Student

I am interested in finding answers for questions about how we acquire and process visual information, and how we use this information to learn. My goal is to understand how visual perception, information processing and learning works and to use this knowledge to build intelligent systems. I am working at the intersection of computer science and neuroscience by developing methods for analyzing the early visual system of the brain.
Room: 2.127

Max Burg
PhD Student

I want to understand visual perception in the brain by leveraging novel machine learning techniques to build predictive models of neural population responses to natural images. Especially, I think it is important to combine a model’s predictive accuracy with interpretability to gain insights into mechanisms of biological computation. I am excited by the idea to implement the biologically inspired building blocks we develop into artificial neural networks.

Ayush Paliwal
PhD Student

Coming from theoretical physics, I like to look for symmetries and invariant quantities in systems. If the problem at hand, the system to understand, has too many degrees of freedom, finding such symmetries and invariant quantities can help simplify the problem and give us a better understanding of it. While training deep learning models, I like to look for symmetries and invariant quantities in the dataset, try to have a representation of it on some manifold, and consider corresponding geometry while selecting a neural network to attack the problem. Currently, I am working on the inverse problem of holography reconstruction. The aim is to reconstruct the position, size and shape of cloud particles.
Room: 2.125

Michaela Vystrčilová
PhD Student

The visual system does not act as a mere camera. As early as in the retina, the brain starts to interpret the information it receives in order to build the perception of visual reality we experience. My goal is to shed more light on this process. Taking advantage of recent deep learning methods, I work on building retinal models that enable us to gain more insight into processing in the earliest stages of the visual system.
Room: 1.115

Polina Turishcheva
PhD Student

I am interested to understand how brain activity develops with time and how previous sensory input influences the processing of the current stimulus. I work with calcium data from a mouse brain. Also, I believe that deep learning should not only produce good scores but also be interpretable and have biological meaning. I hope to find such interpretable models during my Ph.D.
Room: 2.127

Richard Vogg
PhD Student

I work with computer vision techniques to help researchers who study social relationships of monkeys in the wild. Watching hours of video material can be tiring and a source for mistakes. I want to automate and improve this process by training deep learning algorithms to understand and analyze what is happening in the videos.
Room: 1.115

Valentin Hassler
PhD Student

Curiosity is a major driver for living creatures to learn or invent. The aim of my work is to tackle the understanding and predictability of this characteristic, utilizing eye tracking data from humans combined with neural networks to explore different aspects of this topic. Additionally, my focus is on studying how this behavior can enhance learning efficiency in deep learning methods.
Room: 1.111

Jan van Delden
PhD Student

I aim to comprehend how deep learning methods can be applied to unconventional data types beyond images and text, and explore generative models for these data types. Specifically, I seek to understand the effective use of deep learning in engineering design, particularly in acoustics. Additionally, I am interested in point cloud processing and its applications in forest inventory. My goal is to investigate these topics in a way that combines the power of deep learning with practical applications.
Room: 1.116

Ina Braun
PhD Student

I am a student at the Max Planck School Matter to Life, who is interested in applying machine learning methods to medical problems. Currently, I am doing my thesis in collaboration with the lab of Eberhard Bodenschatz at the Max Planck Institute for Dynamics and Self-Organization. My research focuses on using physics-informed neural networks to simulate the deformation of a heart chamber during the cardiac cycle. The goal is to model healthy hearts, hearts affected by a heart attack, and those treated with engineered heart muscle patches.

Max Freudenberg
PhD Student

I'm working with satellite and aerial images and try to detect trees and their species within them. For this task I use different neural networks. Currently, I focus on detecting tree species in satellite image time series - data that has a very coarse spatial, but good temporal and spectral resolution. The final goal is to create a tree species map for Germany that allows to capture the species-specific impact of climate change.
Room: 2.126

Hanna Roetschke
Guest researcher

I have a background in systems immunology and am primarily interested in how computational approaches can solve problems in immunology and neuro-immune interactions. Methodologically, I am employing both classic data science, as well as mathematical modelling and machine/deep learning (graph neural networks, CNNs, generative adversarial networks). I also have a strong interest in combining mechanistic models with machine learning approaches.

Julia Stachowiak
Guest researcher

In everyday clinical practice, data is collected, analysed according to predefined criteria and used for decision-making, but some patterns remain unknown. With both a medical and a scientific background, I am interested in using machine learning techniques to understand the patterns hidden in complex clinical data structures and their potential for early diagnosis.

Georg Eckardt
Bachelor's student

I am working on data sorting techniques for videos of behavioral experiments on lemurs. I am trying to reduce the data labeling time by preselecting video frames from lemur videos where they are identifiable, instead of finding these frames by hand. The goal is to reach similar performance with the automatically selected frames on a subsequent identification task.

Manuel Pereira
Master student

I believe the most noble application of computer science is the advancement of science, answering complex and unsolved problems. I have a background in Software Engineering and a love for Physics that goes back to my childhood, and I believe I am currently living my dream working on the marriage of both fields.

Nina Nellen
Master Student

I'm working on clustering algorithms. A model is trained to get the visual cortex responses for mice after showing them pictures as input. I use deep embedding clustering to get the right cell type classification and check if neuron performance is connected to the clusters.

Paul Wollenhaupt
Master Student

I am excited about developing machine learning methods that help us understand complicated and high-dimensional data sets. Our current goal is to formalise what it means for data points to belong either to clusters or to a continuum, and to develop methods for quantifying the degree of clustering. Another project I am working on is developing a representation learning method for molecular graphs, where the representation is invariant, but an equivalent object can be recovered with high probability.

Alumni

Sharmita Dey
Postdoc

My research is focused on developing models that can learn the interactions and dynamics of moving objects from videos. For this purpose, I have been working on attention-based (self) supervised, semi-supervised and object-centric learning methods. Such object-interaction learned models hold potential for applications in areas such as multi-object tracking, segmentation of moving objects, and video instance segmentation. In addition to my primary research interests, I am also involved in projects related to active learning, and action and interaction recognition.

Claudio Michaelis
Phd Student

Humans do not only excel at acquiring novel concepts from a single demonstration but can also readily identify or reproduce them. When shown a new object humans have no problem pointing at similar objects or drawing their outlines. My goal is to bring similar capabilities to computer vision systems.
Website

Santiago Cadena
Phd Student

I study visual processing in the brain by building predictive models of population responses from the macaque and rodent brains to image and video sequences. I leverage on advances in machine learning and computer vision to both improve predictive power and to gain insights into the nonlinear computations of visual neurons. My goal is to be able to use these insights to enhance current computer vision methods.
Website

Maxim Titov
Master Student

Artificial neural networks were originally inspired by biology. I find the reverse way of using this technology to gain a better understanding of the brain, a fascinating idea. Here in the Neural Data Science group, I am working on incorporating the correlation of neurons into a model that predicts neural responses in the visual cortex.

Fabio Seel
Master student

Computer Vision is a fascinating topic for research, as it is at the same time a tool for other researchers to perform and analyze their experiments. My project deals with tracking droplets within a cloud, in order to better understand the emergence of raindrops. Analyzing videos to estimate those trajectories is highly resource demanding, which is the main challenge I want to tackle. I'm particularly interested in finding efficient ways to track a high number of objects.

Anton Winderlich
Master student

A major argument for self-supervised learning is that it does not require reliance on expensive labeled data. I investigate contrastive representation learning by generating a synthetic dataset with Blender and using a new data augmentation, namely perspective change, to gain deeper insight into the underlying functionalities.

Arne Barth
Master student

It seems like computer vision will be integrated into more and more areas in the future. This also applies to the manufacturing industry for the automation of many different processes. That's why I'm writing my master thesis in the field of visual quality control of industrial products in cooperation with the company Maddox AI. In particular, I focus on the knowledge transfer from multiple data sources.

Benjamin Henne
Master student

I'm passionate about applied deep learning and its potential to solve real-world challenges. My current focus lies in the domain of bioacoustics, where I'm working on my master thesis project in cooperation with the German Primate Centre. Specifically, I'm studying deep learning techniques to detect, segment and classify vocalizations of ring-tailed lemurs from large-scale audio recordings.

Dustin Theobald
Bachelor's student

Broad interest in data science topics. Currently writing my bachelor thesis on self-supervised learning.

Ali Doosthosseini
Master student

I'm working on a graph-based neural network approach to learn and predict tree characteristics from graph representations of their skeletons. A similar method has been used to classify brain cells in mice, and trees look the same as far as computers are concerned.

Jonathan Henrich
Master student

Advances in laser scanning technology make it possible to produce detailed point clouds of forests. For various research goals, it is important to identify individual trees in such point clouds. In my work, I tackle this task by studying supervised deep learning techniques for instance segmentation.

Kai Cohrs
Master's student

At the Neural Data Science group, I am working on models that predict neural responses from different areas of a macaque's visual system simultaneously. My goal is to learn something about the signal flow between those areas. Beyond that, my main interest lies in probabilistic and Bayesian machine learning which I would like to use to make ML more robust. I am fascinated by how these approaches allow us to quantify the uncertainty of our models helping us to make their usage safer.

Kimia Taba
Master student

Biologists conducted social learning experiments with free-ranging red-fronted lemurs. However, analyzing the videos manually proved to be challenging and time-consuming. Consequently, I want to use deep learning techniques to detect the various interactions occurring among the lemurs during the experiment.

Linus Wagner
Bachelor's student

During my time at the Neural Data Science Group I focused on extending a convolutional neural network for modelling neural data in mouse primary visual cortex to take into account noise correlations.

Lisa Joosten
Bachelor's student

I am working with image and video labeling software to create annotations in monkey videos. These are used for supervised training.

Luzie Scharnweber
Bachelor's student

I am working on a modern approach of bee monitoring in agriculture, which is currently being done manually. My goal is to use cameras to record and neural networks to detect and classify bees and other insects to get a better understanding of their population.

Sebastian Troue
Master student

In cooperation with the Max Planck Institute for Dynamics and Self-Organization I am working on my physics master thesis. The aim of my work is to utilize deep learning approaches to evaluate measurements on physical systems. More precisely, the focus lies on the reconstruction of particle positions in clouds from recorded digital holograms. In the end, a significant reduction in the computational cost might be achieved, making digital holography a more affordable technique.

Vitus Benson
Bachelor's student

I study how we as a society can leverage both physical understanding and data-driven models for tackling complex challenges. At the Neural Data Science group I build robust deep learning models for trustworthy automated building damage assessment after natural disasters.
Neural Data Science Group
Institute of Computer Science
University of Goettingen