4944 search results - page 229 / 989 » From XML to Relational Models |
168
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ACL
2009
15 years 4 months ago
2009
This paper introduces the concepts of asking point and expected answer type as variations of the question focus. They are of particular importance for QA over semistructured data,...
160
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DLOG
1996
15 years 8 months ago
1996
To ensure the re-use of domain ontologies the usual approach relies on a pivot language, e.g., Kif, intoandfromwhich the domainontologyis translated. This requires several distinc...
185
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SIGMOD
2002
ACM
16 years 6 months ago
2002
ACM
Ontologies in current computer science parlance are computer based resources that represent agreed domain semantics. Unlike data models, the fundamental asset of ontologies is the...
151
Voted
ER
1999
Springer
15 years 11 months ago
1999
Springer
Database support of time-varying phenomena typically assumes that entities change in a linear fashion. Many phenomena, however, change cyclically over time. Examples include monsoo...
159
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DASFAA
2010
IEEE
16 years 1 months ago
2010
IEEE
Abstract. Besides topological relations and approximate relations, cardinal directions have turned out to be an important class of qualitative spatial relations. In spatial databas...