11462 search results - page 2147 / 2293 » Developing Application-Centric Methods |
271
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SIGMOD
2009
ACM
16 years 6 months ago
2009
ACM
In this paper, we study a novel form of continuous nearest neighbor queries in the presence of obstacles, namely continuous obstructed nearest neighbor (CONN) search. It considers...
282
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SIGMOD
2008
ACM
16 years 6 months ago
2008
ACM
Supporting ranking queries in database systems has been a popular research topic recently. However, there is a lack of study on supporting ranking queries in data warehouses where...
245
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SIGMOD
2007
ACM
16 years 6 months ago
2007
ACM
We consider in this paper a class of Publish-Subscribe (pub-sub) systems called topic-based systems, where users subscribe to topics and are notified on events that belong to thos...
246
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SIGMOD
2007
ACM
16 years 6 months ago
2007
ACM
The Boolean semantics of SQL queries cannot adequately capture the "fuzzy" preferences and "soft" criteria required in non-traditional data retrieval applicati...
163
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PODS
2006
ACM
16 years 6 months ago
2006
ACM
Data exchange deals with inserting data from one database into another database having a different schema. We study and solve a central computational problem of data exchange, nam...