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E-Bike City masterplan
(2024)mobil.TUM 2024 Online AbstractsReaching the climate targets requires a substantial reorganization of our transport systems within only three decades. Technical innovations as well as massive policy changes are necessary to achieve the necessary effects.Other Conference Item -
Modelling road infrastructure potential for the appraisal of sustainable bicycling networks
(2024)mobil.TUM 2024 Online AbstractsOther Conference Item -
Quantitative Group Testing and Pooled Data with Sublinear Number of Tests
(2024)International Zurich Seminar on Information and Communication (IZS 2024). ProceedingsIn the pooled data problem, the goal is to identify the categories associated with a large collection of items via a sequence of pooled tests. Each pooled test reveals the number of items of each category within the pool. A prominent special case is quantitative group testing (QGT), which is the case of pooled data with two categories. We consider these problems in the linear regime, where the fraction of items in each category is of ...Other Conference Item -
A Representation-Learning Game for Classes of Prediction Tasks
(2024)International Zurich Seminar on Information and Communication (IZS 2024). ProceedingsWe propose a game-theoretic formulation for learn ing dimensionality-reducing representations of feature vectors, when a prior knowledge on future prediction tasks is available. We analytically find the value of the game and optimal mixed (randomized) strategies for the case of linear representations, tasks, and the mean squared error loss, and propose an algorithm for general classes of representations, tasks, and loss functions.Other Conference Item -
Neural Compression with Lattice Transform Coding
(2024)International Zurich Seminar on Information and Communication (IZS 2024). ProceedingsOther Conference Item -
The Sample Complexity of Simple Binary Hypothesis Testing
(2024)International Zurich Seminar on Information and Communication (IZS 2024). ProceedingsThe sample complexity of simple binary hypothesis testing is the smallest number of i.i.d. samples required to distinguish between two distributions p and q such that the Type-I and Type-II errors are smaller than some pre-specified thresholds α and β, respectively. Our main contribution is deriving, under mild technical conditions, a formula for the sample complexity in terms of parameters p, q, α, and βOther Conference Item -
The Out-of-Sample Prediction Error of the Square-Root-LASSO and Related Estimator
(2024)International Zurich Seminar on Information and Communication (IZS 2024). ProceedingsOther Conference Item -
Information-Theoretic Limits for Sublinear-Rank Symmetric Matrix Factorization
(2024)International Zurich Seminar on Information and Communication (IZS 2024). ProceedingsWe consider symmetric matrix factorization with additive Gaussian noise when the rank M scales with the signal matrix size N as MN = o(N 1/10). Allowing for a growing rank offers new challenges and requires new methods. Working in the Bayes-optimal setting, we show that whenever the log-concave prior for the matrix elements takes a factorized form, then the limiting mutual information between signal and observation is the very same as ...Other Conference Item -
Hyperparameter Tuning via Trajectory Predictions: Stochastic Prox-Linear Methods in Matrix Sensing
(2024)International Zurich Seminar on Information and Communication (IZS 2024). ProceedingsOther Conference Item -
Equivalence Principles for Nonlinear Random Matrices
(2024)International Zurich Seminar on Information and Communication (IZS 2024). ProceedingsNonlinear random matrices have significant applications in machine learning, statistics, and signal processing. Recent results in the field have pointed to an intriguing equivalence principle for these matrices. This principle shows that their asymptotic properties, including but not limited to their spectral characteristics, are asymptotically equivalent to those of simpler, noisy linear equivalent models. In my presentation, I will ...Other Conference Item