2889 search results - page 52 / 578 » Querying Structured Hyperdocuments |
217
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STOC
2012
ACM
13 years 8 months ago
2012
ACM
We consider submodular optimization problems, and provide a general way of translating oracle inapproximability results arising from the symmetry gap technique to computational co...
167
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VLDB
2002
ACM
15 years 5 months ago
2002
ACM
Query optimization is a computationally intensive process, especially for complex queries. We present here a tool, called PLASTIC, that can be used by query optimizers to amortize...
167
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CORR
2012
Springer
14 years 1 months ago
2012
Springer
This paper presents a query evaluation technique for positive relational algebra queries with aggregates on a representation system for probabilistic data based on the algebraic s...
135
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ICMCS
2006
IEEE
16 years 1 days ago
2006
IEEE
In this paper, we propose an efficient algorithm, called MQSchange (changes of Music Query Streams), to detect the changes of maximal melody structures in user-centered music quer...
199
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PVLDB
2011
15 years 29 days ago
2011
Studies find that at least 20% of web queries have local intent; and the fraction of queries with local intent that originate from mobile properties may be twice as high. The eme...