Zobrazeno 1 - 10
of 1 023
pro vyhledávání: '"A. Ostrovski"'
Autor:
Nikishin, Evgenii, Oh, Junhyuk, Ostrovski, Georg, Lyle, Clare, Pascanu, Razvan, Dabney, Will, Barreto, André
A growing body of evidence suggests that neural networks employed in deep reinforcement learning (RL) gradually lose their plasticity, the ability to learn from new data; however, the analysis and mitigation of this phenomenon is hampered by the comp
Externí odkaz:
http://arxiv.org/abs/2305.15555
Autor:
D. S. Ostrovski, S. A. Borzenok, B. E. Malyugin, O. P. Antonova, M. Kh. Khubetsova, T. Z. Kerimov
Publikováno v:
Вестник трансплантологии и искусственных органов, Vol 26, Iss 2, Pp 135-144 (2024)
Human posterior corneal epithelium (corneal endothelium) has limited proliferative activity both in vivo and in vitro. Disease or dysfunction in these cells leads to impaired corneal transparency of varying degrees of severity, up to blindness. Curre
Externí odkaz:
https://doaj.org/article/ed985864c780451a9c683314df1b01bf
Autor:
Rowland, Mark, Munos, Rémi, Azar, Mohammad Gheshlaghi, Tang, Yunhao, Ostrovski, Georg, Harutyunyan, Anna, Tuyls, Karl, Bellemare, Marc G., Dabney, Will
We analyse quantile temporal-difference learning (QTD), a distributional reinforcement learning algorithm that has proven to be a key component in several successful large-scale applications of reinforcement learning. Despite these empirical successe
Externí odkaz:
http://arxiv.org/abs/2301.04462
Autor:
Gulcehre, Caglar, Srinivasan, Srivatsan, Sygnowski, Jakub, Ostrovski, Georg, Farajtabar, Mehrdad, Hoffman, Matt, Pascanu, Razvan, Doucet, Arnaud
Deep neural networks are the most commonly used function approximators in offline reinforcement learning. Prior works have shown that neural nets trained with TD-learning and gradient descent can exhibit implicit regularization that can be characteri
Externí odkaz:
http://arxiv.org/abs/2207.02099
We identify and study the phenomenon of policy churn, that is, the rapid change of the greedy policy in value-based reinforcement learning. Policy churn operates at a surprisingly rapid pace, changing the greedy action in a large fraction of states w
Externí odkaz:
http://arxiv.org/abs/2206.00730
Autor:
Brad Morgan, Chris Poppy, David Manuel Velazco, Hanna Ostrovski, Jennifer Martin, John Scanga, Keith E. Belk, Mahesh N. Nair, Robert Delmore, Robert Williams
Publikováno v:
Meat and Muscle Biology, Vol 8, Iss 1 (2024)
The prevalence of highly marbled cattle breeds, such as Wagyu, has increased in the US due to consumer demand for higher-quality beef. The ability to grade highly marbled carcasses accurately and consistently, particularly with quantifying intramuscu
Externí odkaz:
https://doaj.org/article/37893d3370c247bba5218681a04730ee
Autor:
Ioana Andreea Ciocănaru, Brian Owain Nieuwenhuis, Raquel Lubambo Ostrovski, Jesse Cochran, Burton H. Jones
Publikováno v:
Ecology and Evolution, Vol 14, Iss 6, Pp n/a-n/a (2024)
Abstract While morphological abnormalities have been widely reported in batomorphs, ontogenetic deformities of the posterior pectoral fin are rare. In this paper, we present two individuals of the bluespotted ribbontail ray, Taeniura lymma (Forsskål
Externí odkaz:
https://doaj.org/article/e78b8b51dc6e440cb4f16ce775ed7d13
Autor:
Siman-Tov, M., Ostrovski, A., Mast, M., Struikmans, H., Bogers, L., Fortpied, C., Hol, S., Petoukhova, A., van Egmond, J., Poortmans, P., Kaidar-Person, O.
Publikováno v:
In Clinical Oncology November 2024 36(11):690-700
Learning to act from observational data without active environmental interaction is a well-known challenge in Reinforcement Learning (RL). Recent approaches involve constraints on the learned policy or conservative updates, preventing strong deviatio
Externí odkaz:
http://arxiv.org/abs/2110.14020
Publikováno v:
Revista da Sociedade Portuguesa de Dermatologia e Venereologia, Vol 82, Iss 2 (2024)
This article reviews the dermatological manifestations that frequently arise in endocrine disorders, encompassing conditions such as diabetes mellitus, acromegaly, polycystic ovary syndrome, hypothyroidism, Addison’s disease, among others. It explo
Externí odkaz:
https://doaj.org/article/469b8f922a604841afc2adb1f93f6786