243 search results - page 8 / 49 » A Heuristics-Based Approach to Query Optimization in Structu... |
CORR
2010
Springer
14 years 9 months ago
2010
Springer
In this report, we unify two quite distinct approaches to information retrieval: region models and language models. Region models were developed for structured document retrieval....
VLDB
1992
ACM
15 years 1 months ago
1992
ACM
Research in temporal databases has mainly focused on defining temporal data models by extending existing models, and developing access structures for temporal data. Little has bee...
DASFAA
2005
IEEE
15 years 3 months ago
2005
IEEE
Abstract. In this paper, we present a FASST mining approach to extract the frequently changing semantic structures (FASSTs), which are a subset of semantic substructures that chang...
97
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VLDB
2002
ACM
14 years 9 months ago
2002
ACM
Structurally recursive XML queries are an important query class that follows the structure of XML data. At present, it is difficult for XQuery to type and optimize structurally re...
101
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WISE
2000
Springer
15 years 1 months ago
2000
Springer
The mediator/wrapper approach is used to integrate data from different databases and other data sources by introducing a middleware virtual database that provides high level abstr...