Sciweavers

4 search results - page 1 / 1
» jacm 2011
Sort
View
JACM
2011
98views more  JACM 2011»
12 years 11 months ago
Randomized algorithms for estimating the trace of an implicit symmetric positive semi-definite matrix
We analyze the convergence of randomized trace estimators. Starting at 1989, several algorithms have been proposed for estimating the trace of a matrix by 1 M M i=1 zT i Azi, where...
Haim Avron, Sivan Toledo
JACM
2011
152views more  JACM 2011»
12 years 7 months ago
Robust principal component analysis?
This paper is about a curious phenomenon. Suppose we have a data matrix, which is the superposition of a low-rank component and a sparse component. Can we recover each component i...
Emmanuel J. Candès, Xiaodong Li, Yi Ma, Joh...
IACR
2011
115views more  IACR 2011»
12 years 4 months ago
Multi-Server Oblivious RAM
Secure two-party computation protocol allows two players, Alice with secret input x and Bob with secret input y, to jointly execute an arbitrary program π(x, y) such that only th...
Steve Lu, Rafail Ostrovsky
SODA
2012
ACM
243views Algorithms» more  SODA 2012»
11 years 7 months ago
Bidimensionality and geometric graphs
Bidimensionality theory was introduced by Demaine et al. [JACM 2005 ] as a framework to obtain algorithmic results for hard problems on minor closed graph classes. The theory has ...
Fedor V. Fomin, Daniel Lokshtanov, Saket Saurabh