6455 search results - page 839 / 1291 » Research problems |
301
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SIGMOD
2009
ACM
16 years 7 months ago
2009
ACM
Research has investigated mappings among data sources under two perspectives. On one side, there are studies of practical tools for schema mapping generation; these focus on algor...
264
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SIGMOD
2008
ACM
16 years 7 months ago
2008
ACM
Regulations require businesses to archive many electronic documents for extended periods of time. Given the sheer volume of documents and the response time requirements, documents...
274
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SIGMOD
2008
ACM
16 years 7 months ago
2008
ACM
Recently, skyline queries have attracted much attention in the database research community. Space partitioning techniques, such as recursive division of the data space, have been ...
170
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PODS
2007
ACM
16 years 7 months ago
2007
ACM
The contingency table is a work horse of official statistics, the format of reported data for the US Census, Bureau of Labor Statistics, and the Internal Revenue Service. In many ...
180
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MOBISYS
2004
ACM
16 years 6 months ago
2004
ACM
We study the problem of tracking a moving device under two indoor location architectures: an active mobile architecture and a passive mobile architecture. In the former, the infra...