Linear time, high-rate, list-recoverable codes from expander graphs

نویسندگان

  • Brett Hemenway
  • Mary Wootters
چکیده

We show that expander codes, when properly instantiated, are high-rate list-recoverable codes with linear-time list recovery algorithms. List recoverable codes have been useful recently in constructing efficiently listdecodable codes, as well as explicit constructions of matrices for compressive sensing and group testing. Previous list-recoverable codes with linear-time decoding algorithms have all had rate at most 1/2; in contrast, our codes can have rate 1− ε for any ε > 0.

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تاریخ انتشار 2015