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Many modern ViT backbones adopt spatial architectural designs, such as window attention, decomposed relative positional embeddings in SAM, and RoPE in DINOv3. Such architectures impose new challenges on token reduction, as the vast majority…

计算机视觉与模式识别 · 计算机科学 2026-03-03 Wenyi Gong , Mieszko Lis

We show an improved parallel algorithm for decomposing an undirected unweighted graph into small diameter pieces with a small fraction of the edges in between. These decompositions form critical subroutines in a number of graph algorithms.…

数据结构与算法 · 计算机科学 2013-07-16 Gary L. Miller , Richard Peng , Shen Chen Xu

We introduce a new concept of a subgraph class called a superbubble for analyzing assembly graphs, and propose an efficient algorithm for detecting it. Most assembly algorithms utilize assembly graphs like the de Bruijn graph or the overlap…

数据结构与算法 · 计算机科学 2013-08-02 Taku Onodera , Kunihiko Sadakane , Tetsuo Shibuya

The computational cost of simulating quantum many-body systems can often be reduced by taking advantage of physical symmetries. While methods exist for specific symmetry classes, a general algorithm to find the full permutation symmetry…

量子物理 · 物理学 2025-12-01 Saumya Shah , Patrick Rebentrost

We propose an $O(\log n)$-approximation algorithm for the bipartiteness ratio of undirected graphs introduced by Trevisan (SIAM Journal on Computing, vol. 41, no. 6, 2012), where $n$ is the number of vertices. Our approach extends the…

数据结构与算法 · 计算机科学 2025-11-05 Tasuku Soma , Mingquan Ye , Yuichi Yoshida

In this paper, we revisit a well-known distributed projected subgradient algorithm which aims to minimize a sum of cost functions with a common set constraint. In contrast to most of existing results, weight matrices of the time-varying…

最优化与控制 · 数学 2021-04-29 Weijian Li , Zihan Chen , Youcheng Lou , Yiguang Hong

This work addresses the challenge of using a deep learning model to prune graphs and the ability of this method to integrate explainability into spatio-temporal problems through a new approach. Instead of applying explainability to the…

机器学习 · 计算机科学 2025-10-14 Javier García-Sigüenza , Mirco Nanni , Faraón Llorens-Largo , José F. Vicent

Many combinatorial optimization problems can be formulated as the search for a subgraph that satisfies certain properties and minimizes the total weight. We assume here that the vertices correspond to points in a metric space and can take…

数据结构与算法 · 计算机科学 2024-12-25 Marin Bougeret , Jérémy Omer , Michael Poss

Bipartite graphs are a prevalent modeling tool for real-world networks, capturing interactions between vertices of two different types. Within this framework, bicliques emerge as crucial structures when studying dense subgraphs: they are…

数据结构与算法 · 计算机科学 2024-05-27 Alexis Baudin , Clémence Magnien , Lionel Tabourier

Many graph problems can be solved using ordered parallel graph algorithms that achieve significant speedup over their unordered counterparts by reducing redundant work. This paper introduces a new priority-based extension to GraphIt, a…

The Burrows-Wheeler transform (BWT) is a well studied text transformation widely used in data compression and text indexing. The BWT of two strings can also provide similarity measures between them, based on the observation that the more…

数据结构与算法 · 计算机科学 2020-09-10 Felipe A. Louza , Guilherme P. Telles , Simon Gog , Liang Zhao

We present a quasi linear-time algorithm for Maximum Matching on distance-hereditary graphs and some of their generalizations. This improves on [Dragan, WG'97], who proposed such an algorithm for the subclass of (tent,hexahedron)-free…

数据结构与算法 · 计算机科学 2018-04-26 Guillaume Ducoffe , Alexandru Popa

This paper presents a novel meta algorithm, Partition-Merge (PM), which takes existing centralized algorithms for graph computation and makes them distributed and faster. In a nutshell, PM divides the graph into small subgraphs using our…

数据结构与算法 · 计算机科学 2013-09-25 Vincent Blondel , Kyomin Jung , Pushmeet Kohli , Devavrat Shah

The paper presents an image denoising algorithm by combining a method that is based on directional quasi-analytic wavelet packets (qWPs) with the popular BM3D algorithm. The qWPs and its corresponding transforms are designed in [1]. The…

图像与视频处理 · 电气工程与系统科学 2022-06-10 Amir Averbuch , Pekka Neittaanmaki , Valery Zheludev , Moshe Salhov , Jonathan Hauser

Abstract notions of convexity over the vertices of a graph, and corresponding notions of halfspaces, have recently gained attention from the machine learning community. In this work we study monophonic halfspaces, a notion of graph…

机器学习 · 计算机科学 2025-07-01 Marco Bressan , Victor Chepoi , Emmanuel Esposito , Maximilian Thiessen

As two fundamental problems, graph cuts and graph matching have been investigated over decades, resulting in vast literature in these two topics respectively. However the way of jointly applying and solving graph cuts and matching receives…

计算机视觉与模式识别 · 计算机科学 2017-11-28 Tianshu Yu , Junchi Yan , Jieyi Zhao , Baoxin Li

Graph similarity search has received considerable attention in many applications, such as bioinformatics, data mining, pattern recognition, and social networks. Existing methods for this problem have limited scalability because of the huge…

数据库 · 计算机科学 2016-12-30 Xiaoyang Chen , Hongwei Huo , Jun Huan , Jeffrey Scott Vitter

We study the densest subgraph problem and give algorithms via multiplicative weights update and area convexity that converge in $O\left(\frac{\log m}{\epsilon^{2}}\right)$ and $O\left(\frac{\log m}{\epsilon}\right)$ iterations,…

数据结构与算法 · 计算机科学 2024-06-18 Ta Duy Nguyen , Alina Ene

Computing a minimum $s$-$t$ cut in a graph is a solution to a wide range of computer vision problems, and is often done using the Boykov-Kolmogorov (BK) algorithm. In this paper, we revisit the BK algorithm from both a theoretical and…

计算机视觉与模式识别 · 计算机科学 2026-05-14 Christian Møller Mikkelstrup , Anders Bjorholm Dahl , Philip Bille , Vedrana Andersen Dahl , Inge Li Gørtz

We study the minimum cut problem in the presence of uncertainty and show how to apply a novel robust optimization approach, which aims to exploit the similarity in subsequent graph measurements or similar graph instances, without posing any…

数据结构与算法 · 计算机科学 2013-04-30 Barbara Geissmann , Rastislav Šrámek