Randomness is Linear in Space

نویسندگان

  • Noam Nisan
  • David Zuckerman
چکیده

We show that any randomized algorithm that runs in space S and time T and uses poly(S) random bits can be simulated using only O(S) random bits in space S and time T + poly(S). A deterministic simulation in space S follows. Of independent interest is our main technical tool: a procedure which extracts randomness from a defective random source using a small additional number of truly random bits.

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عنوان ژورنال:
  • J. Comput. Syst. Sci.

دوره 52  شماره 

صفحات  -

تاریخ انتشار 1996