Zobrazeno 1 - 10
of 3 043
pro vyhledávání: '"P. Petrik"'
Autor:
A. Petek-Petrik, H. Húdoková, P. Fleischer, G. Jamnická, D. Kurjak, A. Sliacka Konôpková, P. Petrík
Publikováno v:
Biologia Plantarum, Vol 67, Iss 1, Pp 136-141 (2023)
The impact of climate change on the physiological processes of Norway spruce in Central Europe is a significant concern. The increased temperature and evaporative demand associated with climate change may negatively affect its photosynthesis and carb
Externí odkaz:
https://doaj.org/article/90fa76d3d83d40c585c149118e235dea
In Markov decision processes (MDPs), quantile risk measures such as Value-at-Risk are a standard metric for modeling RL agents' preferences for certain outcomes. This paper proposes a new Q-learning algorithm for quantile optimization in MDPs with st
Externí odkaz:
http://arxiv.org/abs/2410.24128
We develop a generic policy gradient method with the global optimality guarantee for robust Markov Decision Processes (MDPs). While policy gradient methods are widely used for solving dynamic decision problems due to their scalable and efficient natu
Externí odkaz:
http://arxiv.org/abs/2410.22114
Optimizing risk-averse objectives in discounted MDPs is challenging because most models do not admit direct dynamic programming equations and require complex history-dependent policies. In this paper, we show that the risk-averse {\em total reward cr
Externí odkaz:
http://arxiv.org/abs/2408.17286
Autor:
Su, Xihong, Petrik, Marek
Multi-model Markov decision process (MMDP) is a promising framework for computing policies that are robust to parameter uncertainty in MDPs. MMDPs aim to find a policy that maximizes the expected return over a distribution of MDP models. Because MMDP
Externí odkaz:
http://arxiv.org/abs/2407.06329
In reinforcement learning, robust policies for high-stakes decision-making problems with limited data are usually computed by optimizing the \emph{percentile criterion}. The percentile criterion is approximately solved by constructing an \emph{ambigu
Externí odkaz:
http://arxiv.org/abs/2404.05055
Off-policy Evaluation (OPE) methods are a crucial tool for evaluating policies in high-stakes domains such as healthcare, where exploration is often infeasible, unethical, or expensive. However, the extent to which such methods can be trusted under a
Externí odkaz:
http://arxiv.org/abs/2404.04714
Autor:
Petrik, Jan, Bambach, Markus
Publikováno v:
Journal of Manufacturing Processes 121 (2024) 193-204
This study presents a novel method for microstructure control in closed die hot forging that combines Model Predictive Control (MPC) with a developed machine learning model called DeepForge. DeepForge uses an architecture that combines 1D convolution
Externí odkaz:
http://arxiv.org/abs/2402.16119
Robust Markov Decision Processes (RMDPs) are a widely used framework for sequential decision-making under parameter uncertainty. RMDPs have been extensively studied when the objective is to maximize the discounted return, but little is known for aver
Externí odkaz:
http://arxiv.org/abs/2312.03618
Autor:
Cífka, Martin, Ponimatkin, Georgy, Labbé, Yann, Russell, Bryan, Aubry, Mathieu, Petrik, Vladimir, Sivic, Josef
We introduce FocalPose++, a neural render-and-compare method for jointly estimating the camera-object 6D pose and camera focal length given a single RGB input image depicting a known object. The contributions of this work are threefold. First, we der
Externí odkaz:
http://arxiv.org/abs/2312.02985