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We consider the inverse reinforcement learning problem, that is, the problem of learning from, and then predicting or mimicking a controller based on state/action data. We propose a statistical model for such data, derived from the…

机器学习 · 统计学 2012-11-27 Sumeetpal S. Singh , Nicolas Chopin , Nick Whiteley

Model Predictive Control (MPC) has been demonstrated to be effective in continuous control tasks. When a world model and a value function are available, planning a sequence of actions ahead of time leads to a better policy. Existing methods…

机器学习 · 计算机科学 2025-04-07 Yuhang Wang , Hanwei Guo , Sizhe Wang , Long Qian , Xuguang Lan

A challenging problem in probabilistic programming is to develop inference algorithms that work for arbitrary programs in a universal probabilistic programming language (PPL). We present the nonparametric involutive Markov chain Monte Carlo…

机器学习 · 计算机科学 2022-11-03 Carol Mak , Fabian Zaiser , Luke Ong

Partially Observable Monte Carlo Planning (POMCP) is an efficient solver for Partially Observable Markov Decision Processes (POMDPs). It allows scaling to large state spaces by computing an approximation of the optimal policy locally and…

人工智能 · 计算机科学 2023-03-17 Giulio Mazzi , Daniele Meli , Alberto Castellini , Alessandro Farinelli

Model Predictive Control (MPC) is a powerful control technique that handles constraints, takes the system's dynamics into account, and optimizes for a given cost function. In practice, however, it often requires an expert to craft and tune…

机器人学 · 计算机科学 2020-04-21 Napat Karnchanachari , Miguel I. Valls , David Hoeller , Marco Hutter

We study reinforcement learning for the optimal control of Branching Markov Decision Processes (BMDPs), a natural extension of (multitype) Branching Markov Chains (BMCs). The state of a (discrete-time) BMCs is a collection of entities of…

机器学习 · 计算机科学 2021-06-15 Ernst Moritz Hahn , Mateo Perez , Sven Schewe , Fabio Somenzi , Ashutosh Trivedi , Dominik Wojtczak

Most of Markov Chain Monte Carlo (MCMC) and sequential Monte Carlo (SMC) algorithms in existing probabilistic programming systems suboptimally use only model priors as proposal distributions. In this work, we describe an approach for…

人工智能 · 计算机科学 2016-05-17 Yura N Perov , Tuan Anh Le , Frank Wood

A Markov chain update scheme using a machine-learned flow-based generative model is proposed for Monte Carlo sampling in lattice field theories. The generative model may be optimized (trained) to produce samples from a distribution…

高能物理 - 格点 · 物理学 2019-09-10 M. S. Albergo , G. Kanwar , P. E. Shanahan

Markov chain Monte Carlo (MCMC) algorithms provide a very general recipe for estimating properties of complicated distributions. While their use has become commonplace and there is a large literature on MCMC theory and practice, MCMC users…

统计计算 · 统计学 2012-05-03 Murali Haran , Luke Tierney

We focus on generative autoencoders, such as variational or adversarial autoencoders, which jointly learn a generative model alongside an inference model. Generative autoencoders are those which are trained to softly enforce a prior on the…

机器学习 · 计算机科学 2017-01-13 Antonia Creswell , Kai Arulkumaran , Anil Anthony Bharath

Adaptive Markov chain Monte Carlo (MCMC) algorithms, which automatically tune their parameters based on past samples, have proved extremely useful in practice. The self-tuning mechanism makes them `non-Markovian', which means that their…

概率论 · 数学 2024-08-28 Pietari Laitinen , Matti Vihola

Since the middle of the 1940's scientists have used Monte Carlo (MC) simulations to obtain information about physical processes. This has proved a accurate and and reliable method to obtain this information. Through out resent years…

星系天体物理 · 物理学 2012-07-02 Thomas Amby Ottosen

For many complex simulation tasks spanning areas such as healthcare, engineering, and finance, Monte Carlo (MC) methods are invaluable due to their unbiased estimates and precise error quantification. Nevertheless, Monte Carlo simulations…

Markov Chain Monte Carlo (MCMC) methods for sampling probability density functions (combined with abundant computational resources) have transformed the sciences, especially in performing probabilistic inferences, or fitting models to data.…

天体物理仪器与方法 · 物理学 2018-05-23 David W. Hogg , Daniel Foreman-Mackey

Replica exchange Monte Carlo (reMC), also known as parallel tempering, is an important technique for accelerating the convergence of the conventional Markov Chain Monte Carlo (MCMC) algorithms. However, such a method requires the evaluation…

机器学习 · 统计学 2021-03-23 Wei Deng , Qi Feng , Liyao Gao , Faming Liang , Guang Lin

We present a deep reinforcement learning framework where a machine agent is trained to search for a policy to generate a ground state for the square ice model by exploring the physical environment. After training, the agent is capable of…

无序系统与神经网络 · 物理学 2019-07-04 Kai-Wen Zhao , Wen-Han Kao , Kai-Hsin Wu , Ying-Jer Kao

A basic simulation-based reinforcement learning algorithm is the Monte Carlo Exploring States (MCES) method, also known as optimistic policy iteration, in which the value function is approximated by simulated returns and a greedy policy is…

最优化与控制 · 数学 2020-07-22 Jun Liu

Stochastic gradient Markov chain Monte Carlo (SG-MCMC) has become increasingly popular for simulating posterior samples in large-scale Bayesian modeling. However, existing SG-MCMC schemes are not tailored to any specific probabilistic…

机器学习 · 统计学 2018-06-13 Wenbo Gong , Yingzhen Li , José Miguel Hernández-Lobato

In this paper, we address a method that integrates reinforcement learning into the Monte Carlo tree search to boost online path planning under fully observable environments for automated parking tasks. Sampling-based planning methods under…

人工智能 · 计算机科学 2025-01-03 Xinlong Zheng , Xiaozhou Zhang , Donghao Xu

With the aim of improving performance in Markov Decision Problem in an Off-Policy setting, we suggest taking inspiration from what is done in Offline Reinforcement Learning (RL). In Offline RL, it is a common practice during policy learning…

人工智能 · 计算机科学 2024-10-29 Jérôme Arjonilla , Abdallah Saffidine , Tristan Cazenave