492 search results - page 69 / 99 » Computing aggregations in database query languages |
IDEAS
2006
IEEE
14 years 3 months ago
2006
IEEE
Unlike numerical preferences, preferences on attribute values do not show an inherent total order, but skyline computation has to rely on partial orderings explicitly stated by th...
VLDB
2004
ACM
14 years 3 months ago
2004
ACM
Advances in data acquisition and sensor technologies are leading towards the development of “High Fan-in” architectures: widely distributed systems whose edges consist of nume...
MIG
2009
Springer
14 years 2 months ago
2009
Springer
There are various techniques for simulating crowds, however, in most cases the quality of the simulation is measured by examining its “look-and-feel”. Even if the aggregate mov...
WWW
2007
ACM
14 years 10 months ago
2007
ACM
In XML databases, materializing queries and their results into views in a semantic cache can improve the performance of query evaluation by reducing computational complexity and I...
SIGMOD
2011
ACM
13 years 21 days ago
2011
ACM
We demonstrate NetTrails, a declarative platform for maintaining and interactively querying network provenance in a distributed system. Network provenance describes the history an...