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» Terminating Decision Algorithms Optimally
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FOCS
2009
IEEE
16 years 28 days 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 8 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 4 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»
15 years 1 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
16 years 10 days 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...