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» Tight Lower Bounds for the Distinct Elements Problem
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ISAAC
2010
Springer
233views Algorithms» more  ISAAC 2010»
14 years 7 months ago
Computing Sparse Multiples of Polynomials
We consider the problem of finding a sparse multiple of a polynomial. Given f F[x] of degree d, and a desired sparsity t, our goal is to determine if there exists a multiple h F[...
Mark Giesbrecht, Daniel S. Roche, Hrushikesh Tilak
CORR
2010
Springer
149views Education» more  CORR 2010»
14 years 9 months ago
Pebbling and Branching Programs Solving the Tree Evaluation Problem
We study restricted computation models related to the tree evaluation problem. The TEP was introduced in earlier work as a simple candidate for the (very) long term goal of separa...
Dustin Wehr
82
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ICALP
2004
Springer
15 years 3 months ago
Quantum Query Complexity of Some Graph Problems
Quantum algorithms for graph problems are considered, both in the adjacency matrix model and in an adjacency list-like array model. We give almost tight lower and upper bounds for ...
Christoph Dürr, Mark Heiligman, Peter H&oslas...
74
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WDAG
2009
Springer
166views Algorithms» more  WDAG 2009»
15 years 4 months ago
New Bounds for the Controller Problem
The (M, W)-controller, originally studied by Afek, Awerbuch, Plotkin, and Saks, is a basic ted tool that provides an abstraction for managing the consumption of a global resource ...
Yuval Emek, Amos Korman
CISS
2008
IEEE
15 years 4 months ago
Fusion frames and robust dimension reduction
Abstract— We consider the linear minimum meansquared error (LMMSE) estimation of a random vector of interest from its fusion frame measurements in presence noise and subspace era...
Ali Pezeshki, Gitta Kutyniok, A. Robert Calderbank