Title :
Local List Decoding with a Constant Number of Queries
Author :
Ben-Aroya, Avraham ; Efremenko, Klim ; Ta-Shma, Amnon
Author_Institution :
Blavatnik Sch. of Comput. Sci., Tel-Aviv Univ., Tel-Aviv, Israel
Abstract :
Efremenko showed locally-decodable codes of subexponential length that can handle close to 1/6 fraction of errors. In this paper we show that the same codes can be locally unique-decoded from error rate 1/2 - α for any α > 0 and locally list-decoded from error rate 1 - α for any α > 0, with only a constant number of queries and a constant alphabet size. This gives the first sub-exponential length codes that can be locally list-decoded with a constant number of queries.
Keywords :
codes; alphabet; constant query number; local list decoding; locally decodable codes; Binary codes; Computer science; Decoding; Error analysis; Linear code; Polynomials; Probabilistic logic; List decodable codes; Locally decodable codes;
Conference_Titel :
Foundations of Computer Science (FOCS), 2010 51st Annual IEEE Symposium on
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4244-8525-3
DOI :
10.1109/FOCS.2010.88