2889 search results - page 52 / 578 » Querying Structured Hyperdocuments |
STOC
2012
ACM
11 years 10 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...
VLDB
2002
ACM
13 years 7 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...
CORR
2012
Springer
12 years 3 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...
ICMCS
2006
IEEE
14 years 1 months 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...
PVLDB
2011
13 years 2 months 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...