6974 search results - page 930 / 1395 » Querying Semi-Structured Data |
190
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SIGMOD
1989
ACM
15 years 11 months ago
1989
ACM
Spatial objects other than points and boxes can be stored in spatial indexes, but the techniques usually require the use of approximations that can be arbitrarily bad. This leads ...
189
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DCOSS
2007
Springer
15 years 10 months ago
2007
Springer
Sensor networks are often used to sense the physical world and provide observations for various uses. In hostile environments, it is critical to control the network access to ensur...
175
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ACSC
2004
IEEE
15 years 10 months ago
2004
IEEE
Indexes are the key technology underpinning efficient text search. A range of algorithms have been developed for fast query evaluation and for index creation, but update algorithm...
175
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FQAS
2006
Springer
15 years 10 months ago
2006
Springer
The paper presents a fuzzy database management system, and a fuzzy method for dominant colour description of images, on which an image retrieval system is built. The paper shows th...
172
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ESWS
2008
Springer
15 years 8 months ago
2008
Springer
A fundamental problem related to graph structured databases is searching for substructures. One issue with respect to optimizing such searches is the ability to estimate the freque...