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» New Constructions for IPP Codes
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STOC
2009
ACM
133views Algorithms» more  STOC 2009»
16 years 2 months ago
New direct-product testers and 2-query PCPs
The "direct product code" of a function f gives its values on all k-tuples (f(x1), . . . , f(xk)). This basic construct underlies "hardness amplification" in c...
Russell Impagliazzo, Valentine Kabanets, Avi Wigde...
111
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IPPS
2010
IEEE
14 years 11 months ago
Hybrid MPI/Pthreads parallelization of the RAxML phylogenetics code
Abstract--A hybrid MPI/Pthreads parallelization was implemented in the RAxML phylogenetics code. New MPI code was added to the existing Pthreads production code to exploit parallel...
Wayne Pfeiffer, Alexandros Stamatakis
STOC
2003
ACM
109views Algorithms» more  STOC 2003»
15 years 7 months ago
A new multilayered PCP and the hardness of hypergraph vertex cover
Given a k-uniform hypergraph, the Ek-Vertex-Cover problem is to find the smallest subset of vertices that intersects every hyperedge. We present a new multilayered PCP constructi...
Irit Dinur, Venkatesan Guruswami, Subhash Khot, Od...
IPPS
2009
IEEE
15 years 8 months ago
Validating Wrekavoc: A tool for heterogeneity emulation
Experimental validation and testing of solutions designed for heterogeneous environment is a challenging issue. Wrekavoc is a tool for performing such validation. It runs unmodi...
Olivier Dubuisson, Jens Gustedt, Emmanuel Jeannot
ECCC
2010
131views more  ECCC 2010»
15 years 1 months ago
High-rate codes with sublinear-time decoding
Locally decodable codes are error-correcting codes that admit efficient decoding algorithms; any bit of the original message can be recovered by looking at only a small number of ...
Swastik Kopparty, Shubhangi Saraf, Sergey Yekhanin