517 search results - page 38 / 104 » Efficient Computation of Diverse Query Results |
EVOW
2010
Springer
13 years 11 months ago
2010
Springer
Optimization problems are more and more complex and their resource requirements are ever increasing. Although metaheuristics allow to significantly reduce the computational complex...
ALGORITHMICA
2002
13 years 7 months ago
2002
In recent years there has been an upsurge of interest in spatial databases. A major issue is how to manipulate efficiently massive amounts of spatial data stored on disk in multidi...
SSDBM
2010
IEEE
13 years 5 months ago
2010
IEEE
Graphs are prevailingly used in many applications to model complex data structures. In this paper, we study the problem of supergraph containment search. To avoid the NP-complete s...
GIS
2007
ACM
14 years 8 months ago
2007
ACM
Continuous spatial queries posted within an environment of moving objects produce as their results a time-varying set of objects. In the most ambitious case both queries and data ...
WWW
2009
ACM
14 years 8 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...