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COMGEO
2006
ACM
13 years 10 months ago
Computing homotopic shortest paths efficiently
Geometric shortest paths are a major topic in computational geometry; see the survey paper by Mitchell [12]. A shortest path between two points in a simple polygon can be found in...
Alon Efrat, Stephen G. Kobourov, Anna Lubiw
SIGMOD
2001
ACM
124views Database» more  SIGMOD 2001»
14 years 10 months ago
Space-Efficient Online Computation of Quantile Summaries
An -appro ximate quantile summary of a sequence of N elements is a data structure that can answer quantile queries about the sequence to within a precision of N. We presen t a new...
Michael Greenwald, Sanjeev Khanna
ICASSP
2008
IEEE
14 years 4 months ago
Efficient computation of the binary vector that maximizes a rank-deficient quadratic form
The maximization of a full-rank quadratic form over a finite alphabet is NP-hard in both a worst-case sense and an average sense. Interestingly, if the rank of the form is not a ...
George N. Karystinos, Athanasios P. Liavas
ASPDAC
2007
ACM
105views Hardware» more  ASPDAC 2007»
14 years 2 months ago
An Efficient Computation of Statistically Critical Sequential Paths Under Retiming
Abstract-- In this paper we present the Statistical Retimingbased Timing Analysis (SRTA) algorithm. The goal is to compute the timing slack distribution for the nodes in the timing...
Mongkol Ekpanyapong, Xin Zhao, Sung Kyu Lim
CRYPTO
2008
Springer
165views Cryptology» more  CRYPTO 2008»
14 years 3 days ago
Efficient Secure Linear Algebra in the Presence of Covert or Computationally Unbounded Adversaries
In this work we study the design of secure protocols for linear algebra problems. All current solutions to the problem are either inefficient in terms of communication complexity o...
Payman Mohassel, Enav Weinreb