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DBPL
2009
Springer
144views Database» more  DBPL 2009»
16 years 1 months ago
General Database Statistics Using Entropy Maximization
Abstract. We propose a framework in which query sizes can be estimated from arbitrary statistical assertions on the data. In its most general form, a statistical assertion states t...
Raghav Kaushik, Christopher Ré, Dan Suciu
ICTIR
2009
Springer
16 years 1 months ago
Robust Word Similarity Estimation Using Perturbation Kernels
We introduce perturbation kernels, a new class of similarity measure for information retrieval that casts word similarity in terms of multi-task learning. Perturbation kernels mode...
Kevyn Collins-Thompson
SARA
2009
Springer
16 years 1 months ago
Tightened Transitive Closure of Integer Addition Constraints
We present algorithms for testing the satisfiability and finding the tightened transitive closure of conjunctions of addition constraints of the form ±x ± y ≤ d and bound co...
Peter Z. Revesz
CSMR
2008
IEEE
16 years 1 months ago
Hecataeus: A What-If Analysis Tool for Database Schema Evolution
Databases are continuously evolving environments, where design constructs are added, removed or updated rather often. Small changes in the database configurations might impact a l...
George Papastefanatos, Fotini Anagnostou, Yannis V...
WCNC
2008
IEEE
16 years 1 months ago
Asymptotic Distortion Performance of Source-Channel Diversity Schemes over Relay Channels
— Diversity techniques are an effective answer to the challenges presented by fading channels. This paper focuses on studying the performance of systems with diversity of three f...
Karim G. Seddik, Andres Kwasinski, K. J. Ray Liu