335 search results - page 18 / 67 » A sampling approach for XML query selectivity estimation |
SIGMOD
1996
ACM
13 years 11 months ago
1996
ACM
Many commercial database systems maintain histograms to summarize the contents of relations and permit efficient estimation of query result sizes and access plan costs. Although s...
CIKM
2009
Springer
13 years 11 months ago
2009
Springer
Federated text search provides a unified search interface for multiple search engines of distributed text information sources. Resource selection is an important component for fed...
DKE
2010
13 years 7 months ago
2010
Extensible Markup Language (XML) is becoming the de facto standard for exchanging information over the Internet, which results in the proliferation of XML documents. This has led ...
ICDE
2009
IEEE
14 years 9 months ago
2009
IEEE
Abstract-- Inspired by the great success of information retrieval (IR) style keyword search on the web, keyword search on XML has emerged recently. The difference between text data...
ICDE
2003
IEEE
14 years 9 months ago
2003
IEEE
This paper presents SPEX, a streamed and progressive evaluation of regular path expressions with XPath-like qualifiers against XML streams. SPEX proceeds as follows. An expression...