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» On Skolemization in constructive theories
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MOBIHOC
2004
ACM
16 years 6 months ago
Localized algorithms for energy efficient topology in wireless ad hoc networks
We propose several novel localized algorithms to construct energy efficient routing structures for homogeneous wireless ad hoc networks, where all nodes have same maximum transmis...
Wen-Zhan Song, Yu Wang 0003, Xiang-Yang Li
ICDE
2002
IEEE
204views Database» more  ICDE 2002»
16 years 7 months ago
Approximating a Data Stream for Querying and Estimation: Algorithms and Performance Evaluation
Obtaining fast and good quality approximations to data distributions is a problem of central interest to database management. A variety of popular database applications including,...
Sudipto Guha, Nick Koudas
KDD
2005
ACM
80views Data Mining» more  KDD 2005»
16 years 6 months ago
Wavelet synopsis for data streams: minimizing non-euclidean error
We consider the wavelet synopsis construction problem for data streams where given n numbers we wish to estimate the data by constructing a synopsis, whose size, say B is much sma...
Sudipto Guha, Boulos Harb
POPL
2006
ACM
16 years 6 months ago
A virtual class calculus
Virtual classes are class-valued attributes of objects. Like virtual methods, virtual classes are defined in an object's class and may be redefined within subclasses. They re...
Erik Ernst, Klaus Ostermann, William R. Cook
STOC
2006
ACM
108views Algorithms» more  STOC 2006»
16 years 6 months ago
Extractors for a constant number of polynomially small min-entropy independent sources
We consider the problem of randomness extraction from independent sources. We construct an extractor that can extract from a constant number of independent sources of length n, ea...
Anup Rao