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Naturally occurring networks exhibit quantitative features revealing underlying growth mechanisms. Numerous network mechanisms have recently been proposed to reproduce specific properties such as degree distributions or clustering…

定量方法 · 定量生物学 2009-11-10 Manuel Middendorf , Etay Ziv , Chris Wiggins

This paper shows how the Bayesian network paradigm can be used in order to solve combinatorial optimization problems. To do it some methods of structure learning from data and simulation of Bayesian networks are inserted inside Estimation…

人工智能 · 计算机科学 2013-01-18 Pedro Larrañaga , Ramon Etxeberria , Jose A. Lozano , Jose M. Pena

The adoption of probabilistic models for the best individuals found so far is a powerful approach for evolutionary computation. Increasingly more complex models have been used by estimation of distribution algorithms (EDAs), which often…

神经与进化计算 · 计算机科学 2007-10-16 Leonardo Emmendorfer , Aurora Pozo

Statistical analysis of social networks provides valuable insights into complex network interactions across various scientific disciplines. However, accurate modeling of networks remains challenging due to the heavy computational burden and…

社会与信息网络 · 计算机科学 2023-07-25 Helal El-Zaatari , Fei Yu , Michael R Kosorok

Layered neural networks have greatly improved the performance of various applications including image processing, speech recognition, natural language processing, and bioinformatics. However, it is still difficult to discover or interpret…

机器学习 · 统计学 2017-10-05 Chihiro Watanabe , Kaoru Hiramatsu , Kunio Kashino

Unsupervised estimation of latent variable models is a fundamental problem central to numerous applications of machine learning and statistics. This work presents a principled approach for estimating broad classes of such models, including…

机器学习 · 统计学 2013-05-27 Animashree Anandkumar , Daniel Hsu , Adel Javanmard , Sham M. Kakade

For several years, model-based clustering methods have successfully tackled many of the challenges presented by data-analysts. However, as the scope of data analysis has evolved, some problems may be beyond the standard mixture model…

统计计算 · 统计学 2018-08-31 Arthur White , Thomas Brendan Murphy

Achieving invariance to nuisance transformations is a fundamental challenge in the construction of robust and reliable vision systems. Existing approaches to invariance scale exponentially with the dimension of the family of…

计算机视觉与模式识别 · 计算机科学 2022-03-11 Sam Buchanan , Jingkai Yan , Ellie Haber , John Wright

We introduce a new numerical method based on machine learning to approximate the solution of elliptic partial differential equations with collocation using a set of sigmoidal functions. We show that a feedforward neural network with a…

数值分析 · 数学 2023-03-24 Francesco Calabrò , Gianluca Fabiani , Constantinos Siettos

Probability density function estimation with weighted samples is the main foundation of all adaptive importance sampling algorithms. Classically, a target distribution is approximated either by a non-parametric model or within a parametric…

机器学习 · 计算机科学 2023-10-16 Julien Demange-Chryst , François Bachoc , Jérôme Morio , Timothé Krauth

Extreme learning machine (ELM) as a neural network algorithm has shown its good performance, such as fast speed, simple structure etc, but also, weak robustness is an unavoidable defect in original ELM for blended data. We present a new…

机器学习 · 计算机科学 2014-09-24 Bo Han , Bo He , Rui Nian , Mengmeng Ma , Shujing Zhang , Minghui Li , Amaury Lendasse

Deep neural networks (DNNs) are powerful machine learning models and have succeeded in various artificial intelligence tasks. Although various architectures and modules for the DNNs have been proposed, selecting and designing the…

神经与进化计算 · 计算机科学 2018-01-24 Shinichi Shirakawa , Yasushi Iwata , Youhei Akimoto

We introduce Exponential Family Discriminant Analysis (EFDA), a unified generative framework that extends classical Linear Discriminant Analysis (LDA) beyond the Gaussian setting to any member of the exponential family. Under the assumption…

机器学习 · 计算机科学 2026-03-25 Anish Lakkapragada

Information divergence that measures the difference between two nonnegative matrices or tensors has found its use in a variety of machine learning problems. Examples are Nonnegative Matrix/Tensor Factorization, Stochastic Neighbor…

机器学习 · 计算机科学 2014-06-06 Onur Dikmen , Zhirong Yang , Erkki Oja

We generalize the stochastic block model to the important case in which edges are annotated with weights drawn from an exponential family distribution. This generalization introduces several technical difficulties for model estimation,…

机器学习 · 统计学 2013-05-27 Christopher Aicher , Abigail Z. Jacobs , Aaron Clauset

Combinatorial optimization problems are notoriously challenging for neural networks, especially in the absence of labeled instances. This work proposes an unsupervised learning framework for CO problems on graphs that can provide integral…

机器学习 · 计算机科学 2021-03-09 Nikolaos Karalias , Andreas Loukas

The notion of multivariate total positivity has proved to be useful in finance and psychology but may be too restrictive in other applications. In this paper we propose a concept of local association, where highly connected components in a…

统计方法学 · 统计学 2022-02-10 Steffen Lauritzen , Piotr Zwiernik

Progressive Neural Network Learning is a class of algorithms that incrementally construct the network's topology and optimize its parameters based on the training data. While this approach exempts the users from the manual task of designing…

机器学习 · 计算机科学 2020-05-26 Dat Thanh Tran , Moncef Gabbouj , Alexandros Iosifidis

We study a core algorithmic problem in network design called ${F}$-augmentation that involves increasing the connectivity of a given family of cuts ${F}$. Over 30 years ago, Williamson et al. (STOC `93) provided a 2-approximation…

数据结构与算法 · 计算机科学 2025-04-10 Ishan Bansal

Numerical interactions leading to users sharing textual content published by others are naturally represented by a network where the individuals are associated with the nodes and the exchanged texts with the edges. To understand those…

机器学习 · 计算机科学 2024-02-14 Rémi Boutin , Pierre Latouche , Charles Bouveyron