2121 search results - page 146 / 425 » Indexing Incomplete Databases |
280
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ICDE
2007
IEEE
16 years 7 months ago
2007
IEEE
Linear optimization queries retrieve the top-K tuples in a sliding window of a data stream that maximize/minimize the linearly weighted sums of certain attribute values. To effici...
145
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ICDT
2005
ACM
15 years 11 months ago
2005
ACM
Abstract. In this paper, we consider whether traditional index structures are effective in processing unstable nearest neighbors workloads. It is known that under broad conditions...
253
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GIS
2007
ACM
16 years 7 months ago
2007
ACM
We propose a general framework to index very large datasets of spatial data in a distributed system. Our proposal is built on the recently proposed Scalable Distributed Rtree (SD-...
164
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AIIA
2009
Springer
16 years 20 days ago
2009
Springer
This paper addresses the indexing and retrieval of mathematical symbols from digitized documents. The proposed approach exploits Shape Contexts (SC) to describe the shape of mathe...
160
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MMM
2007
Springer
16 years 10 days ago
2007
Springer
This paper proposes an approach for retrieving videos based on object trajectories and subtrajectories. First, trajectories are segmented into subtrajectories according to the char...