Zobrazeno 1 - 10
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pro vyhledávání: '"Krause, A"'
Autor:
Okanovic, Patrik, Kirsch, Andreas, Kasper, Jannes, Hoefler, Torsten, Krause, Andreas, Gürel, Nezihe Merve
With the multitude of pretrained models available thanks to the advancements in large-scale supervised and self-supervised learning, choosing the right model is becoming increasingly pivotal in the machine learning lifecycle. However, much like the t
Externí odkaz:
http://arxiv.org/abs/2410.13609
Autor:
As, Yarden, Sukhija, Bhavya, Treven, Lenart, Sferrazza, Carmelo, Coros, Stelian, Krause, Andreas
Reinforcement learning (RL) is ubiquitous in the development of modern AI systems. However, state-of-the-art RL agents require extensive, and potentially unsafe, interactions with their environments to learn effectively. These limitations confine RL
Externí odkaz:
http://arxiv.org/abs/2410.09486
Recent efforts in fine-tuning language models often rely on automatic data selection, commonly using Nearest Neighbors retrieval from large datasets. However, we theoretically show that this approach tends to select redundant data, limiting its effec
Externí odkaz:
http://arxiv.org/abs/2410.08020
SHAP values are a popular local feature-attribution method widely used in interpretable and explainable AI. We tackle the problem of efficiently computing these values. We cover both the model-agnostic (black-box) setting, where one only has query ac
Externí odkaz:
http://arxiv.org/abs/2410.06300
Pre-trained generalist policies are rapidly gaining relevance in robot learning due to their promise of fast adaptation to novel, in-domain tasks. This adaptation often relies on collecting new demonstrations for a specific task of interest and apply
Externí odkaz:
http://arxiv.org/abs/2410.05026
Autor:
Krause, Achim, Senger, Andrew
In this note, we prove that $K_{2i} (\mathbb{Z}/p^n) \neq 0$ if and only if $p-1$ divides $i$ and $0 \leq i \leq (p-1) p^{n-2}$, refining the even vanishing theorem of Antieau, Nikolaus and the first author in this case. As a corollary of our proof,
Externí odkaz:
http://arxiv.org/abs/2409.20523
In recent years, there has been a renewed interest in preconditioning for multilevel Toeplitz systems, a research field that has been extensively explored over the past several decades. This work introduces novel preconditioning strategies using mult
Externí odkaz:
http://arxiv.org/abs/2409.20363
Bayesian optimization (BO) is a powerful framework to optimize black-box expensive-to-evaluate functions via sequential interactions. In several important problems (e.g. drug discovery, circuit design, neural architecture search, etc.), though, such
Externí odkaz:
http://arxiv.org/abs/2409.18582
Autor:
Nowak, Katarzyna, Krause, Martin G. H., Siegert, Thomas, Forbrich, Jan, Yates, Robert M., Ramírez-Galeano, Laura, Charbonnel, Corinne, Gieles, Mark
Self-enrichment is one of the leading explanations for chemical anomalies in globular clusters. In this scenario, various candidate polluter stars have been proposed to eject gas with altered chemical composition during the self-enrichment process. M
Externí odkaz:
http://arxiv.org/abs/2409.16362
Autor:
Clontz, C., Seth, A. C., Dotter, A., Häberle, M., Nitschai, M. S., Neumayer, N., Feldmeier-Krause, A., Latour, M., Wang, Z., Souza, S. O., Kacharov, N., Bellini, A., Libralato, M., Pechetti, R., van de Ven, G., Alfaro-Cuello, M.
We present age estimates for over 8100 sub-giant branch (SGB) stars in Omega Centauri ($\omega$ Cen) to study its star formation history. Our large data set, which combines multi-wavelength HST photometry with MUSE metallicities, provides an unpreced
Externí odkaz:
http://arxiv.org/abs/2409.13855