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Maximum distance separable (MDS) array codes are widely employed in modern distributed storage systems to provide high data reliability with small storage overhead. Compared with the data access latency of the entire file, the data access…

信息论 · 计算机科学 2025-01-22 Hao Shi , Zhengyi Jiang , Zhongyi Huang , Linqi Song , Hanxu Hou

A linear code with parameters $[n, k, n-k+1]$ is called a maximum distance separable (MDS for short) code. A linear code with parameters $[n, k, n-k]$ is said to be almost maximum distance separable (AMDS for short). A linear code is said…

信息论 · 计算机科学 2023-07-11 Zhonghua Sun , Cunsheng Ding

A linear code with parameters of the form $[n, k, n-k+1]$ is referred to as an MDS (maximum distance separable) code. A linear code with parameters of the form $[n, k, n-k]$ is said to be almost MDS (i.e., almost maximum distance separable)…

信息论 · 计算机科学 2020-08-04 Qiuyan Wang , Ziling Heng

We consider the problem of minimizing the size of a family of sets G such that every subset of 1,...,n can be written as a disjoint union of at most k members of G, where k and n are given numbers. This problem originates in a real-world…

离散数学 · 计算机科学 2007-11-20 Yannick Frein , Benjamin Lévêque , Andras Sebo

It is well known that an (n,k) code can be used to store 'k' units of information in 'n' unit-capacity disks of a distributed data storage system. If the code used is maximum distance separable (MDS), then the system can tolerate any (n-k)…

信息论 · 计算机科学 2011-06-08 Viveck R. Cadambe , Cheng Huang , Syed A. Jafar , Jin Li

This work deals with partial MDS (PMDS) codes, a special class of locally repairable codes, used for distributed storage system. We first show that a known construction of these codes, using Gabidulin codes, can be extended to use any…

信息论 · 计算机科学 2018-01-19 Alessandro Neri , Anna-Lena Horlemann-Trautmann

In this paper, we present an improved approximation algorithm for three related problems. In the Minimum Sum of Radii clustering problem (MSR), we aim to select $k$ balls in a metric space to cover all points while minimizing the sum of the…

数据结构与算法 · 计算机科学 2024-12-24 Zachary Friggstad , Mahya Jamshidian

We give a dimensionality reduction procedure to approximate the sum of distances of a given set of $n$ points in $R^d$ to any "shape" that lies in a $k$-dimensional subspace. Here, by "shape" we mean any set of points in $R^d$. Our…

数据结构与算法 · 计算机科学 2021-06-25 Zhili Feng , Praneeth Kacham , David P. Woodruff

Selecting a small set of representatives from a large database is important in many applications such as multi-criteria decision making, web search, and recommendation. The $k$-regret minimizing set ($k$-RMS) problem was recently proposed…

数据库 · 计算机科学 2021-06-30 Yanhao Wang , Yuchen Li , Raymond Chi-Wing Wong , Kian-Lee Tan

We consider a simple multiple access network (SMAN), where $k$ sources of unit rates transmit their data to a common sink via $n$ relays. Each relay is connected to the sink and to certain sources. A coding scheme (for the relays) is weakly…

信息论 · 计算机科学 2015-04-23 Son Hoang Dau , Wentu Song , Chau Yuen

The well-known Gumbel-Max Trick for sampling elements from a categorical distribution (or more generally a nonnegative vector) and its variants have been widely used in areas such as machine learning and information retrieval. To sample a…

统计计算 · 统计学 2020-02-04 Yiyan Qi , Pinghui Wang , Yuanming Zhang , Junzhou Zhao , Guangjian Tian , Xiaohong Guan

Multidimensional scaling (MDS) is a popular dimensionality reduction techniques that has been widely used for network visualization and cooperative localization. However, the traditional stress minimization formulation of MDS necessitates…

最优化与控制 · 数学 2016-12-22 Ketan Rajawat , Sandeep Kumar

We study common randomness where two parties have access to i.i.d. samples from a known random source, and wish to generate a shared random key using limited (or no) communication with the largest possible probability of agreement. This…

计算复杂性 · 计算机科学 2017-07-26 Badih Ghazi , T. S. Jayram

Although Score Distillation Sampling (SDS) has exhibited remarkable performance in conditional 3D content generation, a comprehensive understanding of its formulation is still lacking, hindering the development of 3D generation. In this…

计算机视觉与模式识别 · 计算机科学 2024-02-08 Boshi Tang , Jianan Wang , Zhiyong Wu , Lei Zhang

We consider the variable selection problem for two-sample tests, aiming to select the most informative variables to determine whether two collections of samples follow the same distribution. To address this, we propose a novel framework…

机器学习 · 统计学 2024-12-23 Jie Wang , Santanu S. Dey , Yao Xie

We consider models for social choice where voters rank a set of choices (or alternatives) by deliberating in small groups of size at most $k$, and these outcomes are aggregated by a social choice rule to find the winning alternative. We…

计算机科学与博弈论 · 计算机科学 2025-03-21 Ashish Goel , Mohak Goyal , Kamesh Munagala

For a graph formed by vertices and weighted edges, a generalized minimum dominating set (MDS) is a vertex set of smallest cardinality such that the summed weight of edges from each outside vertex to vertices in this set is equal to or…

信息检索 · 计算机科学 2016-05-04 Yi-Zhi Xu , Hai-Jun Zhou

Fast secure random number generation is essential for high-speed encrypted communication, and is the backbone of information security. Generation of truly random numbers depends on the intrinsic randomness of the process used and is usually…

量子物理 · 物理学 2019-05-15 Ben Haylock , Daniel Peace , Francesco Lenzini , Christian Weedbrook , Mirko Lobino

The problem of secure distributed batch matrix multiplication (SDBMM) studies the communication efficiency of retrieving a sequence of desired matrix products ${\bf AB}$ $=$ $({\bf A}_1{\bf B}_1,$ ${\bf A}_2{\bf B}_2,$ $\cdots,$ ${\bf…

信息论 · 计算机科学 2021-06-23 Zhuqing Jia , Syed A. Jafar

A random balanced sample (RBS) is a multivariate distribution with n components X_1,...,X_n, each uniformly distributed on [-1, 1], such that the sum of these components is precisely 0. The corresponding vectors X lie in an…

统计理论 · 数学 2007-06-18 Peter Bubenik , John Holbrook