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ECCC
2000
179views more  ECCC 2000»
13 years 3 months ago
A Note on Approximating MAX-BISECTION on Regular Graphs
We design a 0:795 approximation algorithm for the Max-Bisection problem restricted to regular graphs. In the case of three regular graphs our results imply an approximation ratio ...
Uriel Feige, Marek Karpinski, Michael Langberg
ECCC
2000
75views more  ECCC 2000»
13 years 3 months ago
Deterministic Turing Machines in the Range between Real-Time and Linear-Time
Deterministic k-tape and multitape Turing machines with one-way, two-way and without a separated input tape are considered. We investigate the classes of languages acceptable by s...
Andreas Klein, Martin Kutrib
ECCC
2000
101views more  ECCC 2000»
13 years 3 months ago
Simplified derandomization of BPP using a hitting set generator
Abstract. A hitting-set generator is a deterministic algorithm that generates a set of strings such that this set intersects every dense set that is recognizable by a small circuit...
Oded Goldreich, Salil P. Vadhan, Avi Wigderson
ECCC
2000
113views more  ECCC 2000»
13 years 3 months ago
Candidate One-Way Functions Based on Expander Graphs
Abstract. We suggest a candidate one-way function using combinatorial constructs such as expander graphs. These graphs are used to determine a sequence of small overlapping subsets...
Oded Goldreich
ECCC
2000
93views more  ECCC 2000»
13 years 3 months ago
Security of the Most Significant Bits of the Shamir Message Passing Scheme
Boneh and Venkatesan have recently proposed a polynomial time algorithm for recovering a "hidden" element of a finite field Fp of p elements from rather short strings of...
Maria Isabel Gonzalez Vasco, Igor Shparlinski