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arXiv 1906.02423cs.ITmath.IT
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极大可恢复码中的一致子式

Uniform Minors in Maximally Recoverable Codes

Matthias Grezet, Thomas Westerbäck, Ragnar Freij-Hollanti, Camilla Hollanti

摘要:

本文研究了具有最大可恢复性的局部可恢复码,重点研究了删截和缩短所产生的MDS码。利用拟阵理论和MDS码与一致子式的关系,导出了所有可能的一致子式的列表。这个列表是用来改善已知的非渐近下限上所需的字段大小的最大可恢复代码。

英文摘要:

In this letter, locally recoverable codes with maximal recoverability are studied with a focus on identifying the MDS codes resulting from puncturing and shortening. By using matroid theory and the relation between MDS codes and uniform minors, the list of all the possible uniform minors is derived. This list is used to improve the known non-asymptotic lower bound on the required field size of a maximally recoverable code.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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