796 search results - page 14 / 160 » A Formalization of ODMG Queries |
KSEM
2010
Springer
14 years 9 months ago
2010
Springer
One criterion for the well-formedness of ontologies is that their hierarchical structure forms a lattice. Formal Concept Analysis (FCA) has been used as a technique for assessing ...
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SIGKDD
2002
14 years 11 months ago
2002
Inductive databases tightly integrate databases with data mining. The key ideas are that data and patterns (or models) are handled in the same way and that an inductive query lang...
TKDE
2011
14 years 6 months ago
2011
—In the paper “semQA: SPARQL with Idempotent Disjunction” [Shironoshita et al. 2009], the authors study the RDF query language SPARQL. In particular, they claim that some of ...
ESWS
2008
Springer
15 years 1 months ago
2008
Springer
Accessing structured data such as that encoded in ontologies and knowledge bases can be done using either syntactically complex formal query languages like SPARQL or complicated fo...
VLDB
1991
ACM
15 years 3 months ago
1991
ACM
We explore the implications of supporting bags (i.e. multisets) in a data model and associated query language, and present some formal results concerned with the algebraic propert...