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Deep energy-based models are powerful, but pose challenges for learning and inference (Belanger and McCallum, 2016). Tu and Gimpel (2018) developed an efficient framework for energy-based models by training "inference networks" to…

计算与语言 · 计算机科学 2020-10-13 Lifu Tu , Richard Yuanzhe Pang , Kevin Gimpel

State space is widely used for modeling power systems and analyzing their dynamics but it is limited to representing causal and proper systems in which the number of zeros does not exceed the number of poles. In other words, the system…

系统与控制 · 电气工程与系统科学 2024-02-15 Yitong Li , Timothy C. Green , Yunjie Gu

Intelligent decision-making within large and redundant action spaces remains challenging in deep reinforcement learning. Considering similar but ineffective actions at each step can lead to repetitive and unproductive trials. Existing…

机器学习 · 计算机科学 2025-01-27 Wenzhang Liu , Lianjun Jin , Lu Ren , Chaoxu Mu , Changyin Sun

In dynamic settings each economic agent's choices can be revealing of her private information. This elicitation via the rationalization of observable behavior depends each agent's perception of which payoff-relevant contingencies other…

理论经济学 · 经济学 2021-05-17 Evan Piermont , Peio Zuazo-Garin

We present a model-free data-driven inference method that enables inferences on system outcomes to be derived directly from empirical data without the need for intervening modeling of any type, be it modeling of a material law or modeling…

泛函分析 · 数学 2021-06-08 Sergio Conti , Franca Hoffmann , Michael Ortiz

The free energy principle has been proposed as a unifying account of brain function. It is closely related, and in some cases subsumes, earlier unifying ideas such as Bayesian inference, predictive coding, and active learning. This article…

神经元与认知 · 定量生物学 2022-11-30 Samuel J. Gershman

We consider the problem of distributed inference where agents in a network observe a stream of private signals generated by an unknown state, and aim to uniquely identify this state from a finite set of hypotheses. We focus on scenarios…

系统与控制 · 电气工程与系统科学 2021-09-01 Aritra Mitra , John A. Richards , Saurabh Bagchi , Shreyas Sundaram

Despite being recognized as neurobiologically plausible, active inference faces difficulties when employed to simulate intelligent behaviour in complex environments due to its computational cost and the difficulty of specifying an…

机器学习 · 计算机科学 2024-06-12 Aswin Paul , Noor Sajid , Lancelot Da Costa , Adeel Razi

Active learning aims to develop label-efficient algorithms by querying the most representative samples to be labeled by a human annotator. Current active learning techniques either rely on model uncertainty to select the most uncertain…

计算机视觉与模式识别 · 计算机科学 2021-03-31 Sayna Ebrahimi , William Gan , Dian Chen , Giscard Biamby , Kamyar Salahi , Michael Laielli , Shizhan Zhu , Trevor Darrell

We study the problem of exploration in Reinforcement Learning and present a novel model-free solution. We adopt an information-theoretical viewpoint and start from the instance-specific lower bound of the number of samples that have to be…

机器学习 · 计算机科学 2024-07-02 Alessio Russo , Alexandre Proutiere

When deploying artificial agents in real-world environments where they interact with humans, it is crucial that their behavior is aligned with the values, social norms or other requirements of that environment. However, many environments…

机器学习 · 计算机科学 2023-05-05 Mattijs Baert , Pietro Mazzaglia , Sam Leroux , Pieter Simoens

Quantifying entropy production in various active matter phases will open new avenues for probing self-organization principles in these far-from-equilibrium systems. It has been hypothesized that the dissipation of free energy by active…

生物物理 · 物理学 2019-03-27 Carlos Floyd , Garegin A. Papoian , Christopher Jarzynski

We present a new method to evaluate vibrational free energies of atomic systems without a priori specification of an interatomic potential. Our model-agnostic approach leverages descriptors, high-dimensional feature vectors of atomic…

材料科学 · 物理学 2025-03-05 Thomas D Swinburne , Clovis Lapointe , Mihai-Cosmin Marinica

In this paper we show how The Free Energy Principle (FEP) can provide an explanation for why real-world networks deviate from scale-free behaviour, and how these characteristic deviations can emerge from constraints on information…

社会与信息网络 · 计算机科学 2025-02-19 Peter R Williams , Zhan Chen

Many Imitation and Reinforcement Learning approaches rely on the availability of expert-generated demonstrations for learning policies or value functions from data. Obtaining a reliable distribution of trajectories from motion planners is…

机器人学 · 计算机科学 2021-07-13 Alexander Lambert , Byron Boots

This paper describes a discrete state-space model -- and accompanying methods -- for generative modelling. This model generalises partially observed Markov decision processes to include paths as latent variables, rendering it suitable for…

In modeling the interior of cells by simulating a reaction-diffusion master equation over a grid of compartments, one employs the assumption that the copy numbers of various chemical species are small, discrete quantities. We show that in…

化学物理 · 物理学 2019-01-31 Carlos Floyd , Garegin A. Papoian , Christopher Jarzynski

The expression of the free energy density of a classical crystalline system as a gradient expansion in terms of a set of order parameters is developed using classical density functional theory. The goal here is to extend and complete an…

统计力学 · 物理学 2009-11-11 James F. Lutsko

The inverse statistical problem of finding direct interactions in complex networks is difficult. In the natural sciences, well-controlled perturbation experiments are widely used to probe the structure of complex networks. However, our…

无序系统与神经网络 · 物理学 2019-10-24 Jialong Jiang , David A. Sivak , Matt Thomson

We consider the inference problem for parameters in stochastic differential equation models from discrete time observations (e.g. experimental or simulation data). Specifically, we study the case where one does not have access to…

数值分析 · 数学 2018-04-10 Sebastian Krumscheid