3514 search results - page 169 / 703 » On Moving Object Queries |
184
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CIKM
2009
Springer
16 years 19 days ago
2009
Springer
We study the problem of continuous monitoring of top-k queries over multiple non-synchronized streams. Assuming a sliding window model, this general problem has been a well addres...
256
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SIGMOD
2006
ACM
16 years 6 months ago
2006
ACM
Recent data stream systems such as TelegraphCQ have employed the well-known property of duality between data and queries. In these systems, query processing methods are classified...
157
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TSMC
1998
15 years 5 months ago
1998
—A novel collision cone approach is proposed as an aid to collision detection and avoidance between irregularly shaped moving objects with unknown trajectories. It is shown that ...
158
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DOOD
1995
Springer
15 years 9 months ago
1995
Springer
Abstract. Semistructured data has no absolute schema xed in advance and its structure may be irregular or incomplete. Such data commonly arises in sources that do not impose a rigi...
269
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SIGMOD
2005
ACM
16 years 6 months ago
2005
ACM
A common problem in many types of databases is retrieving the most similar matches to a query object. Finding those matches in a large database can be too slow to be practical, es...