2121 search results - page 156 / 425 » Indexing Incomplete Databases |
255
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ICDE
2005
IEEE
16 years 7 months ago
2005
IEEE
A novel data source for assessing traffic conditions is floating car data (FCD) in the form of vehicle tracking data, or, in database terms, trajectory data. This work proposes pr...
150
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PODS
2010
ACM
15 years 11 months ago
2010
ACM
The hash table, especially its external memory version, is one of the most important index structures in large databases. Assuming a truly random hash function, it is known that i...
168
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VLDB
2002
ACM
15 years 5 months ago
2002
ACM
Many valuable text databases on the web have non-crawlable contents that are "hidden" behind search interfaces. Metasearchers are helpful tools for searching over many s...
270
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GIS
2008
ACM
16 years 7 months ago
2008
ACM
An index is devised to support position-independent search for images containing quartets of icons. Point quartets exist that do not unambiguously map to quadrilaterals, however, ...
155
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SAC
2005
ACM
15 years 11 months ago
2005
ACM
: Traditional spatial indexes like R-tree usually assume the database is not updated frequently. In applications like location-based services and sensor networks, this assumption i...