Computing sharp recovery structures for Locally Recoverable codes
Abstract
A locally recoverable code is an error-correcting code such that any erasure in a single coordinate of a codeword can be recovered from a small subset of other coordinates. In this article we develop an algorithm that computes a recovery structure as concise posible for an arbitrary linear code C and a recovery method that realizes it. This algorithm also provides the locality and the dual distance of C. Complexity issues are studied as well. Several examples are included.
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