I currenlty work on Pruna AI which is a startup on efficient ML closely collaborating with the DAML research group (TUM). During my academic and industry work in ML, I realized that money, time, hardware, and environmental costs are citical barriers to apply ML in the real world. With the vision of making any AI model accessible for people and sustainable for the planet, I gathered the best team of cofounders to create Pruna AI. Now, Pruna AI develops technology that makes AI models significantly faster, smaller, cheaper, and greener in one line of code.
Beyond efficient ML, my research focuses on ML methods for uncertainty estimation for different data modalities, i.e. different input types (e.g. tabular, images, graphs, sequential, text data) and output types (e.g. categories, real values, positive counts). In particular, I am interested in defining desiderata, models and evaluation methods for practical uncertainty estimation in real-world applications. Other research interests include robust machine learning and structure learning like hierarchal and causal structures.
I did my Ph.D. in the Data Analytics and Machine Learning (DAML) group at the Technical University of Munich (TUM), where I was supervised by Stephan Günnemann. You can find my Ph.D. thesis on “Uncertainty Estimation for Independent and Non-Independent Data” here.
If you are interested in discussing with me, contact me per email or on twitter :)
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Natural Posterior Network
Deep Bayesian Uncertainty for Exponential Family Distributions - ICLR 2022
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End-to-End Learning of Probabilistic Hierarchies on Graphs
ICLR 2022
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Differentiable DAG Sampling
ICLR 2022
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Graph Posterior Network
Bayesian Predictive Uncertainty for Node Classification - NeurIPS 2021
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Evaluating Robustness of Predictive Uncertainty Estimation
Are Dirichlet-based Models Reliable? - ICML 2021
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On Out-of-distribution Detection with Energy-Based Models
UDL 2021 (ICML)
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Posterior Network
Uncertainty Estimation without OOD Samples via Density-Based Pseudo-Counts - NeurIPS 2020
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Scikit-network
Graph Analysis in Python - JMLR 2020
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Uncertainty on Asynchronous Time Event Prediction
ICLR 2022
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Tree Sampling Divergence
An Information-Theoretic Metric for Hierarchical Graph Clustering - IJCAI 2019
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Multi-scale Clustering in Graphs using Modularity
KTH Publication Library (DiVA) 2019
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Hierarchical Graph Clustering using Node Pair Sampling
MLG 2018 (KDD)