6274 search results - page 225 / 1255 » From query complexity to computational complexity |
251
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ICDE
2002
IEEE
16 years 6 months ago
2002
IEEE
We propose a novel approach to shape-based image retrieval that builds upon a similarity criterion which is based on the average point set distance. Compared to traditional techni...
275
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SIGMOD
2009
ACM
16 years 5 months ago
2009
ACM
Empowering users to access databases using simple keywords can relieve the users from the steep learning curve of mastering a structured query language and understanding complex a...
130
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ESWS
2008
Springer
15 years 6 months ago
2008
Springer
The goal of this paper is to give an overview of the basics of the theory of RDF databases. We provide a formal definition of RDF that includes the features that distinguish this m...
145
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GEOINFORMATICA
1998
15 years 4 months ago
1998
The issue of ®nding similar 3-D surface segments arises in many recent applications of spatial database systems, such as molecular biology, medical imaging, CAD, and geographic i...
188
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SAC
2000
ACM
15 years 9 months ago
2000
ACM
The global scenario put together by communication networks determines new opportunities towards the realization of Internetbased distributed services in many complex and composite...