243 search results - page 28 / 49 » A Heuristics-Based Approach to Query Optimization in Structu... |
CIKM
2004
Springer
15 years 2 months ago
2004
Springer
Document-centric XML collections contain text-rich documents, marked up with XML tags that add lightweight semantics to the text. Querying such collections calls for a hybrid quer...
99
Voted
SSDBM
2009
IEEE
15 years 4 months ago
2009
IEEE
High-dimensional indexing has been very popularly used for performing similarity search over various data types such as multimedia (audio/image/video) databases, document collectio...
113
Voted
TREC
2004
14 years 11 months ago
2004
This paper provides an overview of experiments carried out at the TREC 2004 Terabyte Track using the Indri search engine. Indri is an efficient, effective distributed search engin...
102
click to vote
EDBT
2006
ACM
15 years 9 months ago
2006
ACM
In this paper we present a novel approach for estimating the selectivity of XML twig queries. Such a technique is useful for approximate query answering as well as for determining...
190
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ICDE
2008
IEEE
15 years 11 months ago
2008
IEEE
In this paper we explore database segmentation in the context of a column-store DBMS targeted at a scientific database. We present a novel hardware- and scheme-oblivious segmentati...