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We present a new unified framework for minimizing congestion-dependent network cost in information-centric networks by jointly optimizing forwarding and caching strategies. As caching variables are integer-constrained, the resulting…

网络与互联网体系结构 · 计算机科学 2017-10-17 Milad Mahdian , Edmund Yeh

Maximum coverage and minimum set cover problems --collectively called coverage problems-- have been studied extensively in streaming models. However, previous research not only achieve sub-optimal approximation factors and space…

数据结构与算法 · 计算机科学 2017-03-13 Mohammadhossein Bateni , Hossein Esfandiari , Vahab Mirrokni

Coflow is a network abstraction used to represent communication patterns in data centers. The coflow scheduling problem encountered in large data centers is a challenging $\mathcal{NP}$-hard problem. This paper tackles the scheduling…

数据结构与算法 · 计算机科学 2023-12-29 Chi-Yeh Chen

Depth first search (DFS) tree is a fundamental data structure for solving graph problems. The classical algorithm [SiComp74] for building a DFS tree requires $O(m+n)$ time for a given graph $G$ having $n$ vertices and $m$ edges. Recently,…

数据结构与算法 · 计算机科学 2017-05-11 Shahbaz Khan

Eliminating duplicate data in primary storage of clouds increases the cost-efficiency of cloud service providers as well as reduces the cost of users for using cloud services. Existing primary deduplication techniques either use inline…

分布式、并行与集群计算 · 计算机科学 2017-04-18 Huijun Wu , Chen Wang , Yinjin Fu , Sherif Sakr , Liming Zhu , Kai Lu

We consider the classical Minimum Balanced Cut problem: given a graph $G$, compute a partition of its vertices into two subsets of roughly equal volume, while minimizing the number of edges connecting the subsets. We present the first {\em…

数据结构与算法 · 计算机科学 2020-05-05 Julia Chuzhoy , Yu Gao , Jason Li , Danupon Nanongkai , Richard Peng , Thatchaphol Saranurak

To improve the application-level communication performance, scheduling of coflows, a collection of parallel flows sharing the same objective, is prevalent in modern data center networks (DCNs). Meanwhile, a hybrid-switched DCN design…

网络与互联网体系结构 · 计算机科学 2023-06-19 Xin Wang , Hong Shen , Hui Tian

We show that the $(degree+1)$-list coloring problem can be solved deterministically in $O(D \cdot \log n \cdot\log^2\Delta)$ rounds in the \CONGEST model, where $D$ is the diameter of the graph, $n$ the number of nodes, and $\Delta$ the…

分布式、并行与集群计算 · 计算机科学 2020-04-08 Philipp Bamberger , Fabian Kuhn , Yannic Maus

Balancing policy expressiveness with the exploration-exploitation trade-off is a core challenge in online Reinforcement Learning (RL). While Stochastic Differential Equation (SDE)-based diffusion policies can represent complex, multimodal…

机器学习 · 计算机科学 2026-05-27 Ting Gao , Stavros Orfanoudakis , Nan Lin , Winnie Daamen , Serge Hoogendoorn , Elvin Isufi

In this paper, we present an advanced analysis of near optimal algorithms that use limited space to solve the frequency estimation, heavy hitters, frequent items, and top-k approximation in the bounded deletion model. We define the family…

We study hard constraint satisfaction problems with a decimation approach based on message passing algorithms. Decimation induces a renormalization flow in the space of problems, and we exploit the fact that this flow transforms some of the…

无序系统与神经网络 · 物理学 2010-05-11 Saburo Higuchi , Marc Mézard

Advancements in computing power have made it possible to numerically simulate large-scale fluid-mechanical and/or particulate systems, many of which are integral to core industrial processes. Among the different numerical methods available,…

Planning under uncertainty is critical for robust robot performance in uncertain, dynamic environments, but it incurs high computational cost. State-of-the-art online search algorithms, such as DESPOT, have vastly improved the computational…

人工智能 · 计算机科学 2018-02-20 Panpan Cai , Yuanfu Luo , David Hsu , Wee Sun Lee

Countries in South Asia experience many catastrophic flooding events regularly. Through image classification, it is possible to expedite search and rescue initiatives by classifying flood zones, including houses and humans. We create a new…

计算机视觉与模式识别 · 计算机科学 2024-11-04 Ibne Hassan , Aman Mujahid , Abdullah Al Hasib , Andalib Rahman Shagoto , Joyanta Jyoti Mondal , Meem Arafat Manab , Jannatun Noor

Cartograms are maps that rescale geographic regions (e.g., countries, districts) such that their areas are proportional to quantitative demographic data (e.g., population size, gross domestic product). Unlike conventional bar or pie charts,…

计算几何 · 计算机科学 2019-11-12 Michael T. Gastner , Vivien Seguy , Pratyush More

We develop a new parallel algorithm for minimizing Lipschitz, convex functions with a stochastic subgradient oracle. The total number of queries made and the query depth, i.e., the number of parallel rounds of queries, match the prior…

最优化与控制 · 数学 2024-06-12 Arun Jambulapati , Aaron Sidford , Kevin Tian

The watershed is a powerful tool for segmenting objects whose contours appear as crest lines on a gradient image. The watershed transform associates to a topographic surface a partition into catchment basins, defined as attraction zones of…

计算机视觉与模式识别 · 计算机科学 2012-04-11 Fernand Meyer

Recent research leverages large language models (LLMs) for early mental health detection, such as depression, often optimized with machine-generated data. However, their detection may be subject to unknown weaknesses. Meanwhile, quality…

计算与语言 · 计算机科学 2025-05-26 Zongru Shao , Xin Wang , Zhanyang Liu , Chenhan Wang , K. P. Subbalakshmi

Image restoration has seen great progress in the last years thanks to the advances in deep neural networks. Most of these existing techniques are trained using full supervision with suitable image pairs to tackle a specific degradation.…

图像与视频处理 · 电气工程与系统科学 2020-09-11 Leonhard Helminger , Michael Bernasconi , Abdelaziz Djelouah , Markus Gross , Christopher Schroers

Denoising Diffusion Probabilistic Models (DDPMs) have established a new state-of-the-art in generative image synthesis, yet their deployment is hindered by significant computational overhead during inference, often requiring up to 1,000…

机器学习 · 计算机科学 2025-11-25 Srishti Gupta , Yashasvee Taiwade