activity
20152024
most citedConstruction of optimal locally recoverable codes and connection with hypergraph

20 citations · 30 across the 11 of their papers we have counts for

collaborators

16 papers

cs.IT2024

Random Gabidulin Codes Achieve List Decoding Capacity in the Rank Metric

Zeyu Guo, Chaoping Xing, Chen Yuan +1

Gabidulin codes, serving as the rank-metric counterpart of Reed-Solomon codes, constitute an important class of maximum rank distance (MRD) codes. However, unlike the fruitful posi…

quant-ph2023

Constructions of -uniform states in heterogeneous systems

Keqin Feng, Lingfei Jin, Chaoping Xing +1

A pure quantum state of parties associated with the Hilbert space $\CC^{d_1}\otimes \CC^{d_2}\otimes\cdots\otimes \CC^{d_n}$ is called -uniform if all the reductions to -…

cs.CG2023

On the Fine-Grained Complexity of Small-Size Geometric Set Cover and Discrete -Center for Small

Timothy M. Chan, Qizheng He, Yuancheng Yu

We study the time complexity of the discrete -center problem and related (exact) geometric set cover problems when or the size of the cover is small. We obtain a plethora of…

cs.IT2022

Zero-Rate Thresholds and New Capacity Bounds for List-Decoding and List-Recovery

Nicolas Resch, Chen Yuan, Yihan Zhang

In this work we consider the list-decodability and list-recoverability of arbitrary -ary codes, for all integer values of . A code is called -list-decodable if…

cs.IT2022

Upper bounds on maximum lengths of Singleton-optimal locally repairable codes

Shu Liu, Tingyi Wu, Chaoping Xing +1

A locally repairable code is called Singleton-optimal if it achieves the Singleton-type bound. Such codes are of great theoretic interest in the study of locally repairable codes.…

cs.IT2022

Threshold Rates of Codes Ensembles: Linear is Best

Nicolas Resch, Chen Yuan

In this work, we prove new results concerning the combinatorial properties of random linear codes. Firstly, we prove a lower bound on the list-size required for random linear codes…

cs.IT2019★ 1 cited

Beating the probabilistic lower bound on -perfect hashing

Chaoping Xing, Chen Yuan

For an integer , a perfect -hash code is a block code over of length in which every subset $\{\mathbf{c}_1,\mathbf{c}_2,\dots,\mathbf{c}_q\…

cs.IT2018★ 20 cited

Construction of optimal locally recoverable codes and connection with hypergraph

Chaoping Xing, Chen Yuan

Recently, it was discovered by several authors that a -ary optimal locally recoverable code, i.e., a locally recoverable code archiving the Singleton-type bound, can have length…

cs.IT2018

Asymptotic Gilbert-Varshamov bound on Frequency Hopping Sequences

Xianhua Niu, Chaoping Xing, Chen Yuan

Given a -ary frequency hopping sequence set of length and size with Hamming correlation , one can obtain a -ary (nonlinear) cyclic code of length and size …

cs.IT2018

How long can optimal locally repairable codes be?

Venkatesan Guruswami, Chaoping Xing, Chen Yuan

A locally repairable code (LRC) with locality allows for the recovery of any erased codeword symbol using only other codeword symbols. A Singleton-type bound dictates the b…

cs.IT2018

List Decodability of Symbol-Pair Codes

Shu Liu, Chaoping Xing, Chen Yuan

We investigate the list decodability of symbol-pair codes in the present paper. Firstly, we show that list decodability of every symbol-pair code does not exceed the Gilbert-Varsha…

cs.IT2018★ 5 cited

Optimal locally repairable codes of distance and via cyclic codes

Yuan Luo, Chaoping Xing, Chen Yuan

Like classical block codes, a locally repairable code also obeys the Singleton-type bound (we call a locally repairable code {\it optimal} if it achieves the Singleton-type bound).…

cs.CC2017

Subspace Designs based on Algebraic Function Fields

Venkatesan Guruswami, Chaoping Xing, Chen Yuan

Subspace designs are a (large) collection of high-dimensional subspaces of $\F_q^m$ such that for any low-dimensional subspace , only a small number of subspaces from…

cs.IT2016★ 1 cited

Efficient Multi-Point Local Decoding of Reed-Muller Codes via Interleaved Codex

Ronald Cramer, Chaoping Xing, Chen Yuan

Reed-Muller codes are among the most important classes of locally correctable codes. Currently local decoding of Reed-Muller codes is based on decoding on lines or quadratic curves…

cs.IT2015★ 3 cited

Multipartite entangled states, symmetric matrices and error-correcting codes

Keqin Feng, Lingfei Jin, Chaoping Xing +1

A pure quantum state is called -uniform if all its reductions to -qudit are maximally mixed. We investigate the general constructions of -uniform pure quantum states of $n…

cs.IT2015

A new class of rank-metric codes and their list decoding beyond the unique decoding radius

Chaoping Xing, Chen Yuan

Compared with classical block codes, efficient list decoding of rank-metric codes seems more difficult. Although the list decodability of random rank-metric codes and limits to lis…