2853 search results - page 181 / 571 » On the Efficiency of Provenance Queries |
294
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ICDE
2008
IEEE
16 years 7 months ago
2008
IEEE
Content-based retrieval of spatio-temporal patterns from human motion databases is inherently nontrivial since finding effective distance measures for such data is difficult. These...
269
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ICDE
2007
IEEE
16 years 7 months ago
2007
IEEE
Elevation maps are a widely used spatial data representation in geographical information systems (GIS). Paths on elevation maps can be characterized by profiles, which describe re...
264
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ICDE
2007
IEEE
16 years 7 months ago
2007
IEEE
Traditional approaches for efficiently processing historical queries, where a history is a multidimensional timeseries, employ a two step filter-and-refine scheme. In the filter s...
179
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WWW
2009
ACM
16 years 7 months ago
2009
ACM
Web search engines are facing formidable performance challenges as they need to process thousands of queries per second over billions of documents. To deal with this heavy workloa...
262
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SIGMOD
2009
ACM
16 years 6 months ago
2009
ACM
A growing mount of available text data are being stored in relational databases, giving rise to an increasing need for the RDBMSs to support effective text retrieval. In this pape...