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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

The groupcast index coding problem is the most general version of the classical index coding problem, where any receiver can demand messages that are also demanded by other receivers. Any groupcast index coding problem is described by its…

信息论 · 计算机科学 2019-01-21 Chinmayananda Arunachala , B. Sundar Rajan

Multi-spectral object re-identification (ReID) brings a new perception perspective for smart city and intelligent transportation applications, effectively addressing challenges from complex illumination and adverse weather. However, complex…

计算机视觉与模式识别 · 计算机科学 2025-05-26 Shihao Li , Chenglong Li , Aihua Zheng , Jin Tang , Bin Luo

We propose an iterative programmatic planning (IPP) framework for solving grid-based tasks by synthesizing interpretable agent policies expressed in code using large language models (LLMs). Instead of relying on traditional search or…

人工智能 · 计算机科学 2025-05-19 Ashwath Vaithinathan Aravindan , Zhisheng Tang , Mayank Kejriwal

An identifying code of a graph is a subset of its vertices such that every vertex of the graph is uniquely identified by the set of its neighbours within the code. We show a dichotomy for the size of the smallest identifying code in classes…

离散数学 · 计算机科学 2017-04-17 Nicolas Bousquet , Aurélie Lagoutte , Zhentao Li , Aline Parreau , Stéphan Thomassé

This paper introduces the ${\it decentralized}$ Pliable Index CODing (PICOD) problem: a variant of the Index Coding (IC) problem, where a central transmitter serves ${\it pliable}$ users with message side information; here, pliable refers…

信息论 · 计算机科学 2019-04-11 Tang Liu , Daniela Tuninetti

Existing alignment-based methods have to employ the pretrained human parsing models to achieve the pixel-level alignment, and cannot identify the personal belongings (e.g., backpacks and reticule) which are crucial to person re-ID. In this…

计算机视觉与模式识别 · 计算机科学 2020-07-28 Kuan Zhu , Haiyun Guo , Zhiwei Liu , Ming Tang , Jinqiao Wang

In [1], we introduced a family of combinatorial designs, which we call "alphabet reduction pairs of arrays", ARPAs for short. These designs depend on three integer parameters $q, p \leq q, k\leq p$: $q$ is the size of the symbol set $\{0, 1…

组合数学 · 数学 2024-06-18 Jean-François Culus , Sophie Toulouse

Alphanumeric identifiers such as manufacturer part numbers (MPNs), SKUs, and model codes are ubiquitous in e-commerce catalogs and search. These identifiers are sparse, non linguistic, and highly sensitive to tokenization and typographical…

信息检索 · 计算机科学 2026-04-10 Samarth Agrawal , Jayanth Yetukuri , Diptesh Kanojia , Qunzhi Zhou , Zhe Wu

Universal source coding at short blocklengths is considered for an exponential family of distributions. The \emph{Type Size} code has previously been shown to be optimal up to the third-order rate for universal compression of all memoryless…

信息论 · 计算机科学 2016-12-21 Nematollah Iri , Oliver Kosut

Complete complementary codes (CCCs) play a vital role not only in wireless communication, particularly in multicarrier systems where achieving an interference-free environment is of paramount importance, but also in the construction of…

信息论 · 计算机科学 2024-03-25 Palash Sarkar , Chunlei Li , Sudhan Majhi , Zilong Liu

In the realm of rank-metric codes, Maximum Rank Distance (MRD) codes are optimal algebraic structures attaining the Singleton-like bound. A major open problem in this field is determining whether an MRD code can be extended to a longer one…

信息论 · 计算机科学 2026-04-02 Daniele Bartoli , Alessandro Giannoni , Giuseppe Marino , Alessandro Neri

The length of an optimal scalar linear index code of a groupcast index coding problem is equal to the minrank of its side information hypergraph. The side-information hypergraph becomes a side-information graph for a special class of…

信息论 · 计算机科学 2019-01-03 Mahesh Babu Vaddi , B. Sundar Rajan

Linear codes are widely studied in coding theory as they have nice applications in distributed storage, combinatorics, lattices, cryptography and so on. Constructing linear codes with desirable properties is an interesting research topic.…

信息论 · 计算机科学 2024-01-08 Ziling Heng , Xiaoru Li , Yansheng Wu , Qi Wang

ICD(International Classification of Diseases) coding involves assigning ICD codes to patients visit based on their medical notes. ICD coding is a challenging multilabel text classification problem due to noisy medical document inputs.…

计算与语言 · 计算机科学 2024-09-04 Bin Zhang , Junli Wang

Spatially coupled, parallel concatenated codes (SC-PCCs) have been shown to approach channel capacity when decoded using optimal iterative methods. However, under complexity constraints such decoding strategies can result in unacceptable…

信息论 · 计算机科学 2021-09-07 Andrew D. Cummins , David G. M. Mitchell , Daniel J. Costello,

In the paper "A new class of codes for Boolean masking of cryptographic computations," Carlet, Gaborit, Kim, and Sol\'{e} defined a new class of rate one-half binary codes called \emph{complementary information set} (or CIS) codes. The…

信息论 · 计算机科学 2012-05-24 Finley Freibert

In this paper we study several closely related fundamental problems for words and matrices. First, we introduce the Identity Correspondence Problem (ICP): whether a finite set of pairs of words (over a group alphabet) can generate an…

群论 · 数学 2010-12-06 Paul C. Bell , Igor Potapov

We propose non-binary LDPC codes concatenated with multiplicative repetition codes. By multiplicatively repeating the (2,3)-regular non-binary LDPC mother code of rate 1/3, we construct rate-compatible codes of lower rates 1/6, 1/9,…

信息论 · 计算机科学 2011-07-14 Kenta Kasai , David Declercq , Charly Poulliat , Kohichi Sakaniwa

A well-known lower bound (over finite fields and some special finite commutative rings) on the Hamming distance of a matrix-product code (MPC) is shown to remain valid over any commutative ring $R$. A sufficient condition is given, as well,…

信息论 · 计算机科学 2019-10-22 Mhammed Boulagouaz , Abdulaziz Deajim