605 search results - page 23 / 121 » Aggregate Functions in DLV |
PODS
1999
ACM
14 years 28 days ago
1999
ACM
We investigate the problem of how to extend constraint query languages with aggregate operators. We deal with standard relational aggregation, and also with aggregates speci c to ...
ECAI
2008
Springer
13 years 10 months ago
2008
Springer
In this paper we introduce a new graph based bidding language for combinatorial auctions. In our language, each bidder submits to the arbitrator a generalized flow network (netbid...
ICDE
2008
IEEE
14 years 10 months ago
2008
IEEE
In a massive stream of sequential events such as stock feeds, sensor readings, or IP traffic measurements, tuples pertaining to recent events are typically more important than olde...
TON
2008
13 years 8 months ago
2008
An optimal routing and data aggregation scheme for wireless sensor networks is proposed in this paper. The objective is to maximize the network lifetime by jointly optimizing data ...
TVCG
2010
13 years 7 months ago
2010
—We present a model for building, visualizing, and interacting with multiscale representations of information visualization techniques using hierarchical aggregation. The motivat...