Search Results for author: Marc E. Pfetsch

Found 6 papers, 0 papers with code

Constrained C-Test Generation via Mixed-Integer Programming

no code implementations12 Apr 2024 Ji-Ung Lee, Marc E. Pfetsch, Iryna Gurevych

This work proposes a novel method to generate C-Tests; a deviated form of cloze tests (a gap filling exercise) where only the last part of a word is turned into a gap.

Joint Sparse Estimation with Cardinality Constraint via Mixed-Integer Semidefinite Programming

no code implementations6 Nov 2023 Tianyi Liu, Frederic Matter, Alexander Sorg, Marc E. Pfetsch, Martin Haardt, Marius Pesavento

To further reduce the computation time in such scenarios, a relaxation-based approach can be employed to obtain an approximate solution of the MISDP reformulation, at the expense of a reduced estimation performance.

Ambiguities in Direction-of-Arrival Estimation with Linear Arrays

no code implementations20 Oct 2021 Frederic Matter, Tobias Fischer, Marius Pesavento, Marc E. Pfetsch

Our approach uses Young tableaux for which a submatrix of the steering matrix has a vanishing determinant, which can be expressed through vanishing sums of unit roots.

Direction of Arrival Estimation

Recovery under Side Constraints

no code implementations17 Jun 2021 Khaled Ardah, Martin Haardt, Tianyi Liu, Frederic Matter, Marius Pesavento, Marc E. Pfetsch

Finally, we address the measurement system design for linear and nonlinear measurements of sparse signals.

Dictionary Learning Retrieval

IPBoost -- Non-Convex Boosting via Integer Programming

no code implementations11 Feb 2020 Marc E. Pfetsch, Sebastian Pokutta

Recently non-convex optimization approaches for solving machine learning problems have gained significant attention.

BIG-bench Machine Learning General Classification

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