1846 search results - page 180 / 370 » Fuzzy queries and relational databases |
249
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ICDE
1999
IEEE
16 years 7 months ago
1999
IEEE
In this paper we study the node distribution of an Rtree storing region data, like for instance islands, lakes or human-inhabited areas. We will show that real region datasets are...
153
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CORR
2011
Springer
14 years 9 months ago
2011
Springer
Abstract. We consider the setting of ontological database access, where an Abox is given in form of a relational database D and where a Boolean conjunctive query q has to be evalua...
154
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SIGMOD
2004
ACM
16 years 6 months ago
2004
ACM
Ranking is an important property that needs to be fully supported by current relational query engines. Recently, several rank-join query operators have been proposed based on rank...
157
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ICDE
2005
IEEE
15 years 11 months ago
2005
IEEE
Sybase's flagship database product, Adaptive Server Enterprise provides Native XML processing (NXS) support. In this paper we present our experience related to query processi...
162
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OTM
2005
Springer
15 years 11 months ago
2005
Springer
The strong dynamics of peer-to-peer networks, coupled with the diversity of peer vocabularies, makes query processing in peer database systems a very challenging task. In this pape...