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We consider distributed optimization problems in which a group of agents are to collaboratively seek the global optimum through peer-to-peer communication networks. The problem arises in various application areas, such as resource…

最优化与控制 · 数学 2016-08-30 Jinming Xu , Shanying Zhu , Yeng Chai Soh , Lihua Xie

A variational principle for the rate distortion (RD) theory with Bregman divergences is formulated within the ambit of the generalized (nonextensive) statistics of Tsallis. The Tsallis-Bregman RD lower bound is established. Alternate…

统计力学 · 物理学 2007-07-13 R. C. Venkatesan

We propose a learning framework based on stochastic Bregman iterations, also known as mirror descent, to train sparse neural networks with an inverse scale space approach. We derive a baseline algorithm called LinBreg, an accelerated…

机器学习 · 计算机科学 2022-08-16 Leon Bungert , Tim Roith , Daniel Tenbrinck , Martin Burger

We consider the problem of estimating the inverse covariance matrix by maximizing the likelihood function with a penalty added to encourage the sparsity of the resulting matrix. We propose a new approach based on the split Bregman method to…

机器学习 · 统计学 2015-03-17 Gui-Bo Ye , Jian-Feng Cai , Xiaohui Xie

A rekindled the interest in auto-encoder algorithms has been spurred by recent work on deep learning. Current efforts have been directed towards effective training of auto-encoder architectures with a large number of coding units. Here, we…

机器学习 · 计算机科学 2014-04-18 Luis G. Sanchez Giraldo , Jose C. Principe

In this paper, we generalize the notions of centroids and barycenters to the broad class of information-theoretic distortion measures called Bregman divergences. Bregman divergences are versatile, and unify quadratic geometric distances…

计算几何 · 计算机科学 2007-11-22 Frank Nielsen , Richard Nock

Bregman divergences play a pivotal role in statistics, machine learning and computational information geometry. Particularly in the context of machine learning, they are central to clustering, exponential families, parameter estimation and…

机器学习 · 计算机科学 2026-04-28 Russell Tsuchida , Frank Nielsen

Recent progress in center-based clustering algorithms combats poor local minima by implicit annealing, using a family of generalized means. These methods are variations of Lloyd's celebrated $k$-means algorithm, and are most appropriate for…

机器学习 · 统计学 2022-06-23 Adithya Vellal , Saptarshi Chakraborty , Jason Xu

We generalize the quantum Arimoto-Blahut algorithm by Ramakrishnan et al. (IEEE Trans. IT, 67, 946 (2021)) to a function defined over a set of density matrices with linear constraints so that our algorithm can be applied to optimizations of…

量子物理 · 物理学 2024-09-10 Masahito Hayashi , Geng Liu

Using diffusion models to solve inverse problems is a growing field of research. Current methods assume the degradation to be known and provide impressive results in terms of restoration quality and diversity. In this work, we leverage the…

计算机视觉与模式识别 · 计算机科学 2025-06-02 Charles Laroche , Andrés Almansa , Eva Coupete

Recent advances in Rate-Distortion-Perception (RDP) theory highlight the importance of balancing compression level, reconstruction quality, and perceptual fidelity. While previous work has explored numerical approaches to approximate the…

信息论 · 计算机科学 2025-08-20 Chunhui Chen , Linyi Chen , Xueyan Niu , Hao Wu

The purpose of this paper is twofold. On a technical side, we propose an extension of the Hausdorff distance from metric spaces to spaces equipped with asymmetric distance measures. Specifically, we focus on the family of Bregman…

机器学习 · 计算机科学 2025-04-11 Tuyen Pham , Hana Dal Poz Kouřimská , Hubert Wagner

Distributed stochastic optimization algorithms can simultaneously process large-scale datasets, significantly accelerating model training. However, their effectiveness is often hindered by the sparsity of distributed networks and data…

机器学习 · 计算机科学 2025-02-14 Yuchen Hu , Xi Chen , Weidong Liu , Xiaojun Mao

This paper is concerned with quantum data compression of asymptotically many independent and identically distributed copies of ensembles of mixed quantum states. The encoder has access to a side information system. The figure of merit is…

量子物理 · 物理学 2024-06-21 Zahra Baghali Khanian , Kohdai Kuroiwa , Debbie Leung

Bregman divergences generalize measures such as the squared Euclidean distance and the KL divergence, and arise throughout many areas of machine learning. In this paper, we focus on the problem of approximating an arbitrary Bregman…

机器学习 · 统计学 2020-11-04 Ali Siahkamari , Xide Xia , Venkatesh Saligrama , David Castanon , Brian Kulis

The paper introduces scaled Bregman distances of probability distributions which admit non-uniform contributions of observed events. They are introduced in a general form covering not only the distances of discrete and continuous stochastic…

信息论 · 计算机科学 2021-05-12 Wolfgang Stummer , Igor Vajda

In this paper, we develop a splitting algorithm incorporating Bregman distances to solve a broad class of linearly constrained composite optimization problems, whose objective function is the separable sum of possibly nonconvex nonsmooth…

最优化与控制 · 数学 2024-10-01 Tan Nhat Pham , Minh N. Dao , Andrew Eberhard , Nargiz Sultanova

This work addresses the problem of error concealment in video transmission systems over noisy channels employing Bregman divergences along with regularization. Error concealment intends to improve the effects of disturbances at the…

计算机视觉与模式识别 · 计算机科学 2016-11-11 Alessandra M. Coelho , Vania V. Estrela , Felipe P. do Carmo , Sandro R. Fernandes

Distances are fundamental primitives whose choice significantly impacts the performances of algorithms in machine learning and signal processing. However selecting the most appropriate distance for a given task is an endeavor. Instead of…

机器学习 · 计算机科学 2020-10-01 Frank Nielsen , Richard Nock

Optimizing machine learning algorithms that are used to solve the objective function has been of great interest. Several approaches to optimize common algorithms, such as gradient descent and stochastic gradient descent, were explored. One…

机器学习 · 计算机科学 2022-10-06 Hilal AlQuabeh , Farha AlBreiki , Dilshod Azizov