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» Terminating Decision Algorithms Optimally
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FOCS
2009
IEEE
15 years 10 months ago
Instance-Optimal Geometric Algorithms
We prove the existence of an algorithm A for computing 2-d or 3-d convex hulls that is optimal for every point set in the following sense: for every set S of n points and for ever...
Peyman Afshani, Jérémy Barbay, Timot...
TOG
2012
230views Communications» more  TOG 2012»
13 years 5 months ago
Decoupling algorithms from schedules for easy optimization of image processing pipelines
Using existing programming tools, writing high-performance image processing code requires sacrificing readability, portability, and modularity. We argue that this is a consequenc...
Jonathan Ragan-Kelley, Andrew Adams, Sylvain Paris...
SIAMSC
2010
215views more  SIAMSC 2010»
15 years 1 months ago
A Fast Algorithm for Sparse Reconstruction Based on Shrinkage, Subspace Optimization, and Continuation
We propose a fast algorithm for solving the ℓ1-regularized minimization problem minx∈Rn µ x 1 + Ax − b 2 2 for recovering sparse solutions to an undetermined system of linea...
Zaiwen Wen, Wotao Yin, Donald Goldfarb, Yin Zhang
CORR
2011
Springer
158views Education» more  CORR 2011»
14 years 10 months ago
SqFreeEVAL: An (almost) optimal real-root isolation algorithm
Let f be a univariate polynomial with real coefficients, f ∈ R[X]. Subdivision algorithms based on algebraic techniques (e.g., Sturm or Descartes methods) are widely used for is...
Michael Burr, Felix Krahmer
EUC
2007
Springer
15 years 9 months ago
Assured-Timeliness Integrity Protocols for Distributable Real-Time Threads with in Dynamic Distributed Systems
Networked embedded systems present unique challenges for system designers composing distributed applications with dyanmic, real-time, and resilience requirements. We consider the ...
Binoy Ravindran, Edward Curley, Jonathan Stephen A...