4397 search results - page 368 / 880 » Relational Algebra Operations |
149
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ACCV
2006
Springer
15 years 10 months ago
2006
Springer
Many activities may be characterized by a sequence of key frames that are related to important changes in motion rather than dominant characteristics that persist over a long seque...
171
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VLDB
2004
ACM
15 years 11 months ago
2004
ACM
Relational database systems may be turned into efficient XML and XPath processors if the system is provided with a suitable relational tree encoding. This paper extends this relat...
138
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SIAMDM
2008
15 years 6 months ago
2008
Robertson and Seymour (1990) proved that graphs of bounded tree-width are well-quasi-ordered by the graph minor relation. By extending their arguments, Geelen, Gerards, and Whittle...
166
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ACL
2012
13 years 8 months ago
2012
Comprehending action preconditions and effects is an essential step in modeling the dynamics of the world. In this paper, we express the semantics of precondition relations extrac...
307
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ICDE
2009
IEEE
16 years 7 months ago
2009
IEEE
We have developed a system to process database queries over composed data providing web services. The queries are transformed into execution plans containing an operator that invok...