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Improved Derandomization of BPP using a Hitting Set Generator

A hitting-set generator is an algorithm that generates a set of strings that hit any sufficiently dense set that is recognizable by a small circuit. Andreev, Clementi, Rolin and Trevisan showed that if polynomial-time hitting-set generators exist then BPP equals P. This work simplify and tighten their argument.


Comments: Authored by O. Goldreich and A. Wigderson. Appeared in



Oded Goldreich
2003-07-30