620 search results - page 84 / 124 » Algorithms for Rewriting Aggregate Queries Using Views |
135
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ADBIS
2009
Springer
15 years 10 months ago
2009
Springer
Abstract. In moving object databases, many authors assume that number and position of objects to be processed are always known in advance. Detecting an unknown moving object and pu...
143
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ICCV
2007
IEEE
16 years 5 months ago
2007
IEEE
Occlusion is a significant challenge for many tracking algorithms. Most current methods can track through transient occlusion, but cannot handle significant extended occlusion whe...
134
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ICDE
2005
IEEE
15 years 9 months ago
2005
IEEE
Numerous researchers have proposed to use relational databases to store and query XML documents. One important component of such systems is the XML subtree reconstruction, which r...
130
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EDBT
2008
ACM
16 years 4 months ago
2008
ACM
Enterprises may have multiple database systems spread across the organization for redundancy or for serving different applications. In such systems, query workloads can be distrib...
263
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ICDE
2005
IEEE
16 years 5 months ago
2005
IEEE
Query processing in traditional information management systems has moved from an exact match model to more flexible paradigms allowing cooperative retrieval by aggregating the dat...