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» The Cardinality of an Oracle in Blum-Shub-Smale Computation
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CORR
2010
Springer
37views Education» more  CORR 2010»
13 years 5 months ago
The Cardinality of an Oracle in Blum-Shub-Smale Computation
Wesley Calvert, Ken Kramer, Russell Miller
STOC
2012
ACM
221views Algorithms» more  STOC 2012»
11 years 7 months ago
From query complexity to computational complexity
We consider submodular optimization problems, and provide a general way of translating oracle inapproximability results arising from the symmetry gap technique to computational co...
Shahar Dobzinski, Jan Vondrák
VLDB
2007
ACM
166views Database» more  VLDB 2007»
14 years 5 months ago
Supporting Time-Constrained SQL Queries in Oracle
The growing nature of databases, and the flexibility inherent in the SQL query language that allows arbitrarily complex formulations, can result in queries that take inordinate am...
Ying Hu, Seema Sundara, Jagannathan Srinivasan
FOCS
2008
IEEE
13 years 11 months ago
Submodular Approximation: Sampling-based Algorithms and Lower Bounds
We introduce several generalizations of classical computer science problems obtained by replacing simpler objective functions with general submodular functions. The new problems i...
Zoya Svitkina, Lisa Fleischer
FOCS
2009
IEEE
13 years 11 months ago
Symmetry and Approximability of Submodular Maximization Problems
Abstract— A number of recent results on optimization problems involving submodular functions have made use of the ”multilinear relaxation” of the problem [3], [8], [24], [14]...
Jan Vondrák