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» Estimating query performance using class predictions
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ICTIR
2009
Springer
14 years 2 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
ICDE
2002
IEEE
204views Database» more  ICDE 2002»
14 years 8 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
OOPSLA
2005
Springer
14 years 1 months ago
Fortune teller: improving garbage collection performance in server environment using live objects prediction
Currently, the most adopted criterion to invoke garbage collection is heap space exhaustion. In other words, garbage collection is invoked when the heap space (either the entire s...
Feng Xian, Witawas Srisa-an, Hong Jiang
PODS
2010
ACM
207views Database» more  PODS 2010»
14 years 17 days ago
Understanding cardinality estimation using entropy maximization
Cardinality estimation is the problem of estimating the number of tuples returned by a query; it is a fundamentally important task in data management, used in query optimization, ...
Christopher Ré, Dan Suciu
BMCBI
2010
113views more  BMCBI 2010»
13 years 7 months ago
Class prediction for high-dimensional class-imbalanced data
Background: The goal of class prediction studies is to develop rules to accurately predict the class membership of new samples. The rules are derived using the values of the varia...
Rok Blagus, Lara Lusa