1923 search results - page 290 / 385 » Ranking in Spatial Databases |
171
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GIS
2009
ACM
15 years 11 months ago
2009
ACM
Map-matching is the process of aligning a sequence of observed user positions with the road network on a digital map. It is a fundamental pre-processing step for many applications...
112
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SAC
2010
ACM
15 years 4 months ago
2010
ACM
In this paper, we explore the problem of processing a novel type of location based queries, named the location based top-k query, which involves both of spatial and non-spatial sp...
ICDT
1999
ACM
15 years 2 months ago
1999
ACM
A large number of database index structures have been proposed over the last two decades, and little consensus has emerged regarding their relative e ectiveness. In order to empir...
VLDB
1993
ACM
15 years 1 months ago
1993
ACM
ract One important aspect of scientific data management is metadata management. Metadata is information about data (e.g., content, source, processing applied, precision). One kind ...
177
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ICDE
2006
IEEE
15 years 11 months ago
2006
IEEE
A k-NN query finds the k nearest-neighbors of a given point from a point database. When it is sufficient to measure object distance using the Euclidian distance, the key to effici...