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STOC
2004
ACM
15 years 10 months ago
2004
ACM
We propose a modification to the framework of Universally Composable (UC) security [3]. Our new notion, involves comparing the protocol executions with an ideal execution involvin...
STOC
2004
ACM
15 years 10 months ago
2004
ACM
The problem of finding a local minimum of a black-box function is central for understanding local search as well as quantum adiabatic algorithms. For functions on the Boolean hype...
STOC
2004
ACM
15 years 10 months ago
2004
ACM
Let f be an integer valued function on a finite set V . We call an undirected graph G(V, E) a neighborhood structure for f. The problem of finding a local minimum for f can be phr...
STOC
2004
ACM
15 years 10 months ago
2004
ACM
The cut-norm ||A||C of a real matrix A = (aij)iR,jS is the maximum, over all I R, J S of the quantity | iI,jJ aij|. This concept plays a major role in the design of efficient app...
STOC
2004
ACM
15 years 10 months ago
2004
ACM
We give a O( log n)-approximation algorithm for sparsest cut, edge expansion, balanced separator, and graph conductance problems. This improves the O(log n)-approximation of Leig...