489 search results - page 92 / 98 » Query Selectivity Estimation via Data Mining |
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SDM
2012
SIAM
12 years 12 months ago
2012
SIAM
In this paper, we consider the multi-task sparse learning problem under the assumption that the dimensionality diverges with the sample size. The traditional l1/l2 multi-task lass...
PODS
2010
ACM
15 years 2 months ago
2010
ACM
We give the first optimal algorithm for estimating the number of distinct elements in a data stream, closing a long line of theoretical research on this problem begun by Flajolet...
IADIS
2008
14 years 11 months ago
2008
This article presents an online cluster using genetic algorithms to increase information retrieval efficiency. The Information Retrieval (IR) is based on the grouping of documents...
KDD
2005
ACM
15 years 3 months ago
2005
ACM
Data clustering represents an important tool in exploratory data analysis. The lack of objective criteria render model selection as well as the identification of robust solutions...
ITCC
2002
IEEE
15 years 2 months ago
2002
IEEE
The emergence of the world-wide-web has led to an increased interest in methods for searching for information. A key characteristic of many of the online document collections is t...