$2^{\log^{1-\eps} n}$ Hardness for Closest Vector Problem with Preprocessing

نویسندگان

  • Subhash Khot
  • Preyas Popat
  • Nisheeth K. Vishnoi
چکیده

We prove that for an arbitrarily small constant ε > 0, assuming NP 6⊆DTIME(2log n), the preprocessing versions of the closest vector problem and the nearest codeword problem are hard to approximate within a factor better than 2log 1−ε n. This improves upon the previous hardness factor of (log n)δ for some δ > 0 due to [AKKV05].

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عنوان ژورنال:
  • CoRR

دوره abs/1109.2176  شماره 

صفحات  -

تاریخ انتشار 2011