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It has been proposed by many researchers that combining deep neural networks with graphical models can create more efficient and better regularized composite models. The main difficulties in implementing this in practice are associated with…

计算机视觉与模式识别 · 计算机科学 2020-03-16 Patrick Knöbelreiter , Christian Sormann , Alexander Shekhovtsov , Friedrich Fraundorfer , Thomas Pock

Belief Propagation (BP) is a message-passing algorithm for approximate inference over Probabilistic Graphical Models (PGMs), finding many applications such as computer vision, error-correcting codes, and protein-folding. While general, the…

分布式、并行与集群计算 · 计算机科学 2019-09-26 Mark Van der Merwe , Vinu Joseph , Ganesh Gopalakrishnan

Probabilistic Circuits (PCs) are a promising avenue for probabilistic modeling. They combine advantages of probabilistic graphical models (PGMs) with those of neural networks (NNs). Crucially, however, they are tractable probabilistic…

机器学习 · 计算机科学 2021-06-07 Anji Liu , Guy Van den Broeck

In the context of inference with expectation constraints, we propose an approach based on the "loopy belief propagation" algorithm LBP, as a surrogate to an exact Markov Random Field MRF modelling. A prior information composed of…

机器学习 · 计算机科学 2015-05-13 Cyril Furtlehner , Jean-Marc Lasgouttes , Anne Auger

We describe a novel approach to interpret a polar code as a low-density parity-check (LDPC)-like code with an underlying sparse decoding graph. This sparse graph is based on the encoding factor graph of polar codes and is suitable for…

信息论 · 计算机科学 2018-05-15 Sebastian Cammerer , Moustafa Ebada , Ahmed Elkelesh , Stephan ten Brink

Expectation Propagation is a generalization to Belief Propagation (BP) in two ways. First, it can be used with any exponential family distribution over the cliques in the graph. Second, it can impose additional constraints on the marginal…

信息论 · 计算机科学 2010-09-23 Pablo M. Olmos , Juan José Murillo-Fuentes

Gaussian Belief Propagation (BP) algorithm is one of the most important distributed algorithms in signal processing and statistical learning involving Markov networks. It is well known that the algorithm correctly computes marginal density…

机器学习 · 统计学 2019-03-08 Zhaorong Zhang , Minyue Fu

When solving linear stochastic differential equations numerically, usually a high order spatial discretisation is used. Balanced truncation (BT) and singular perturbation approximation (SPA) are well-known projection techniques in the…

数值分析 · 数学 2016-11-18 Martin Redmann , Melina A. Freitag

Markov decision processes (MDPs) with large number of states are of high practical interest. However, conventional algorithms to solve MDP are computationally infeasible in this scenario. Approximate dynamic programming (ADP) methods tackle…

系统与控制 · 计算机科学 2014-11-19 Chandrashekar Lakshminarayanan , Shalabh Bhatnagar

Approximate linear programming (ALP) and its variants have been widely applied to Markov Decision Processes (MDPs) with a large number of states. A serious limitation of ALP is that it has an intractable number of constraints, as a result…

系统与控制 · 计算机科学 2017-04-11 Chandrashekar Lakshminarayanan , Shalabh Bhatnagar , Csaba Szepesvari

We propose a new generalized version of the QCD Analytic Perturbation Theory of Shirkov and Solovtsov for the computation of higher-order corrections in inclusive and exclusive processes. We construct non-power series expansions for the…

高能物理 - 唯象学 · 物理学 2014-11-18 A. P. Bakulev , S. V. Mikhailov , N. G. Stefanis

In this paper, we present perturbation analysis and randomized algorithms for the total least squares (TLS) problems. We derive the perturbation bound and check its sharpness by numerical experiments. Motivated by the recently popular…

数值分析 · 数学 2014-11-12 Pengpeng Xie , Yimin Wei , Hua Xiang

Representing a strongly interacting multi-particle wave function in a finite product basis leads to errors. Simple rescaling of the contact interaction can preserve the low-lying energy spectrum and long-wavelength structure of wave…

量子气体 · 物理学 2011-08-23 Thomas Ernst , David W. Hallwood , Jake Gulliksen , Hans-Dieter Meyer , Joachim Brand

We consider optimization problems in which the objective requires an inner loop with many steps or is the limit of a sequence of increasingly costly approximations. Meta-learning, training recurrent neural networks, and optimization of the…

机器学习 · 计算机科学 2019-05-20 Alex Beatson , Ryan P. Adams

A novel method of summation for power series is developed. The method is based on the self-similar approximation theory. The trick employed is in transforming, first, a series expansion into a product expansion and in applying the…

统计力学 · 物理学 2009-11-10 V. I. Yukalov , S. Gluzman , D. Sornette

We propose a novel sparse tensor decomposition method, namely Tensor Truncated Power (TTP) method, that incorporates variable selection into the estimation of decomposition components. The sparsity is achieved via an efficient truncation…

机器学习 · 统计学 2016-05-04 Will Wei Sun , Junwei Lu , Han Liu , Guang Cheng

Data association, the problem of reasoning over correspondence between targets and measurements, is a fundamental problem in tracking. This paper presents a graphical model formulation of data association and applies an approximate…

人工智能 · 计算机科学 2014-12-16 Jason L. Williams , Roslyn A. Lau

To facilitate the numerical analysis of particle methods, we derive truncation error estimates for the approximate operators in a generalized particle method. Here, a generalized particle method is defined as a meshfree numerical method…

数值分析 · 数学 2019-07-09 Yusuke Imoto

Belief Propagation algorithms are instruments used broadly to solve graphical model optimization and statistical inference problems. In the general case of a loopy Graphical Model, Belief Propagation is a heuristic which is quite successful…

机器学习 · 统计学 2021-09-15 Andrii Riazanov , Yury Maximov , Michael Chertkov

In this paper, relaxed belief propagation (RBP) based detectors are proposed for multiple-input multiple-out (MIMO) system. The factor graph is leveraged to represent the MIMO channels, and based on which our algorithms are developed.…

信息论 · 计算机科学 2015-03-19 Feichi Long , Tiejun Lv