796 search results - page 44 / 160 » A Formalization of ODMG Queries |
119
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CIKM
2005
Springer
15 years 5 months ago
2005
Springer
Modern query optimizers select an efficient join ordering for a physical execution plan based essentially on the average join selectivity factors among the referenced tables. In ...
VLDB
1995
ACM
15 years 3 months ago
1995
ACM
We follow the stack-baaed approach to query languages which is a new formal and intellectual paradigm for integrating querying and programming for object-oriented databases. Queri...
132
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DLOG
2006
15 years 1 months ago
2006
The novel context of accessing and querying large data repositories through ontologies that are formalized in terms of expressive DLs requires on the one hand to consider query an...
DEXAW
2010
IEEE
15 years 28 days ago
2010
IEEE
Given a set of keywords, we find a maximum Web query (containing the most keywords possible) that respects userdefined bounds on the number of returned hits. We assume a real-world...
111
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CIKM
2010
Springer
14 years 10 months ago
2010
Springer
Dealing with verbose (or long) queries poses a new challenge for information retrieval. Selecting a subset of the original query (a "sub-query") has been shown to be an ...