726 search results - page 38 / 146 » Extended Query Answering Using Integrity Rules |
VL
2009
IEEE
14 years 3 months ago
2009
IEEE
In many domains, decision makers want to find and understand patterns of events as these patterns often give insight into the causal relationships among events. Current systems to...
SEKE
2007
Springer
14 years 2 months ago
2007
Springer
In this paper, we present an approach to query processing for paraconsistent databases in the presence of integrity constraints. Paraconsistent databases are capable of representi...
DBISP2P
2006
Springer
14 years 10 days ago
2006
Springer
Abstract. The both-as-view (BAV) approach to data integration has the advantage of specifying mappings between schemas in a bidirectional manner, so that once a BAV mapping has bee...
TREC
2007
13 years 9 months ago
2007
We describe recent extensions to the Ephyra question answering (QA) system and their evaluation in the TREC 2007 QA track. Existing syntactic answer extraction approaches for fact...
ADBIS
2005
Springer
14 years 2 months ago
2005
Springer
XQuery is widely used for querying XML documents. Within this paper, we examine optimization rules for XQuery queries that exploit type information of the input XML document given ...