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arXiv research

A locally-built, LLM-digested index of recent arXiv papers in quant finance, geometry/topology, and statistical ML — keyword search served straight from SQLite on this machine.

169,291 papers · 148 categories

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18365472 · Jun 202019922001200920182026
48 results for loopy belief propagation

Belief Propagation solves a relaxed network flow problem.

problem Generalized Min-Cost Network Flow with relaxed flow conservation constraints.
method Extends Belief Propagation to solve a new class of network flow problems.
result Belief Propagation converges to the exact solution of the relaxed network flow problem.

SOLBP extends efficient inference to uncertain Bayesian networks.

problem Inference in uncertain Bayesian networks with second-order probabilities.
method Extends Loopy Belief Propagation to second-order Bayesian networks.
result Generates inferences consistent with sum-product networks, more efficient and scalable.

Paper solves inverse problem in continuous Markov fields using Bethe approximation and loopy belief propagation.

problem Solving the inverse problem in Markov random fields with non-parametric pair-wise energy function.
method Loopy belief propagation and orthonormal function expansion to approximate the partition function and solve functional optimization.
result Analytic solution to inverse problem in continuous Markov fields.

A neural network model minimizes region-based free energy for faster inference in MRFs.

problem Efficient inference in complex Markov random fields (MRFs).
method Region-based Energy Neural Network (RENN) that directly minimizes region-based free energy.
result RENN outperforms other methods in marginal distribution estimation, partition function estimation, and MRF learning.

We propose an original particle-based implementation of the Loopy Belief Propagation (LPB) algorithm for pairwise Markov Random Fields (MRF) on a continuous state space. The algorithm constructs adaptively efficient proposal distributions approximating the local beliefs at each note of the MRF. This is achieved by cons…

2015-06-19abs ↗pdf ↗

Loopy belief propagation (LBP), which is equivalent to the Bethe approximation in statistical mechanics, is a message-passing-type inference method that is widely used to analyze systems based on Markov random fields (MRFs). In this paper, we propose a message-passing-type method to analytically evaluate the quenched a…

2015-03-16abs ↗pdf ↗

Belief propagation quickly converges to global optima for ferromagnetic Ising models.

problem Understanding convergence of belief propagation on graphs with cycles.
method Natural initialization and analysis of Ising models on arbitrary graphs.
result Belief propagation converges quickly to the global optimum of the Bethe free energy for ferromagnetic Ising models.

pRSL combines probabilistic rules to improve multi-label classification.

problem Modeling the structure between multi-label classes for better performance.
method Uses probabilistic propositional logic rules and belief propagation to combine predictions from multiple classifiers.
result pRSL achieves state-of-the-art performance on various benchmark datasets.

Loopy and generalized belief propagation are popular algorithms for approximate inference in Markov random fields and Bayesian networks. Fixed points of these algorithms correspond to extrema of the Bethe and Kikuchi free energy. However, belief propagation does not always converge, which explains the need for approach…

2012-10-19abs ↗pdf ↗

Attack graphs provide compact representations of the attack paths that an attacker can follow to compromise network resources by analysing network vulnerabilities and topology. These representations are a powerful tool for security risk assessment. Bayesian inference on attack graphs enables the estimation of the risk …

2016-06-22abs ↗pdf ↗

It is known that fixed points of loopy belief propagation (BP) correspond to stationary points of the Bethe variational problem, where we minimize the Bethe free energy subject to normalization and marginalization constraints. Unfortunately, this does not entirely explain BP because BP is a dual rather than primal algo…

2012-03-15abs ↗pdf ↗

Paper combines deterministic and stochastic inference methods for PGMs.

problem Combining biases from deterministic methods and high costs from Monte Carlo.
method Sequential Monte Carlo algorithm that uses output from deterministic approximations.
result Improves upon deterministic methods and Monte Carlo by reducing biases and computational costs.

DistGP models multi-robot mapping with distributed Gaussian process learning.

problem Collaborative mapping by multiple robots with limited local data.
method Sparse Gaussian process with factorisation and distributed training via GBP.
result DistGP achieves superior accuracy and robustness compared to DiNNO.

Combines neural networks and probabilistic graphical models for efficient higher-order inference.

problem Lack of efficient higher-order relational information in graph neural networks and probabilistic graphical models.
method Derives efficient approximate sum-product loopy belief propagation for higher-order PGMs, embeds into neural network, proposes methods for constructing higher-order factors.
result Substantially outperforms state-of-the-art k-order graph neural networks in molecular datasets.

We propose an original model for inferring team strengths using a Markov Random Field, which can be used to generate historical estimates of the offensive and defensive strengths of a team over time. This model was designed to be applied to sports such as soccer or hockey, in which contest outcomes take value in a limi…

2013-05-09abs ↗pdf ↗

While learning the maximum likelihood value of parameters of an undirected graphical model is hard, modelling the posterior distribution over parameters given data is harder. Yet, undirected models are ubiquitous in computer vision and text modelling (e.g. conditional random fields). But where Bayesian approaches for d…

2012-06-27abs ↗pdf ↗

Proposes a new method for learning MRFs without sampling.

problem Learning deep undirected graphical models (MRFs) efficiently.
method Optimizes a saddle-point objective derived from the Bethe free energy approximation, using trained inference networks to amortize the optimization.
result The method compares favorably with loopy belief propagation and achieves better held-out log likelihood.

This thesis investigates belief propagation's performance in graphical models with loops.

problem Belief propagation's performance and convergence guarantees in models with loops are uncertain.
method Investigates how model parameters affect belief propagation's performance, convergence, and approximation quality.
result Model parameters influence the number of fixed points, convergence properties, and approximation quality of belief propagation.

Belief Propagation outperforms other algorithms in reconstructing binary symmetric channel trees.

problem Reconstructing binary symmetric channel trees with bounded memory.
method Combining recursive reconstruction, information theory, and optimal transport.
result Any recursive algorithm with bounded memory for the reconstruction problem on binary symmetric channel trees has a phase transition strictly below the Belief Propagation threshold.

New deep learning model tackles graph data learning challenges.

problem Handling graph structured data challenges in deep learning models.
method Introduces a deep loopy neural network with extensive connections and a new learning algorithm based on spanning trees.
result Demonstrates effectiveness on real-world graph datasets.

Enhances belief propagation to find global optima without increasing computational burden.

problem Improving probabilistic inference accuracy on graphical models.
method Homotopy continuation method that gradually incorporates pairwise potentials.
result SBP finds the global optimum of the Bethe approximation for attractive models.

GEnBP combines EnKF and GaBP for efficient high-dimensional inference.

problem Efficient inference in high-dimensional models.
method Gaussian Ensemble Belief Propagation algorithm combining EnKF and GaBP.
result GEnBP outperforms existing methods in accuracy and efficiency.

Markov Chain Monte Carlo (MCMC) and Belief Propagation (BP) are the most popular algorithms for computational inference in Graphical Models (GM). In principle, MCMC is an exact probabilistic method which, however, often suffers from exponentially slow mixing. In contrast, BP is a deterministic method, which is typicall…

2016-05-29abs ↗pdf ↗

New insights into belief propagation and Bethe approximation for factor graphs.

problem Understanding the correctness and efficiency of belief propagation and its relation to partition functions.
method Viewing factor graphs through the lens of polynomials and reformulating Bethe approximation as a polynomial optimization problem.
result For bipartite normal factor graphs, the Bethe approximation is a lower bound to the partition function under certain analytic conditions.

Improved text summarization using belief propagation on weighted bipartite graphs.

problem Text summarization from a graph theory perspective.
method Generalized belief propagation algorithm for weighted bipartite graphs.
result Our algorithm outperforms greedy methods in text summarization tasks.

Efficiently learns deep factor graphs using Gaussian belief propagation.

problem Learning in deep factor graphs with efficient inference.
method Treats all relevant quantities as random variables, uses belief propagation for inference.
result Efficiently solves training and prediction problems in deep factor graphs with belief propagation.