750 search results - page 39 / 150 » Aggregates in Possibilistic Databases |
ADC
2009
Springer
14 years 4 months ago
2009
Springer
Comparative evaluations of information retrieval systems are based on a number of key premises, including that representative topic sets can be created, that suitable relevance ju...
AMW
2009
13 years 11 months ago
2009
We investigate the space requirements for summaries needed for maintaining exact answers to aggregate queries over histories of relational databases. We show that, in general, a su...
KDD
2006
ACM
14 years 10 months ago
2006
ACM
Partitions of sequential data exist either per se or as a result of sequence segmentation algorithms. It is often the case that the same timeline is partitioned in many different ...
DOLAP
2004
ACM
14 years 3 months ago
2004
ACM
A peer-to-peer (P2P) data management system consists essentially of a network of peer systems, each maintaining full autonomy over its own data resources. Data exchange between pe...
SIGMOD
2010
ACM
14 years 2 months ago
2010
ACM
MapReduce is a popular framework for data-intensive distributed computing of batch jobs. To simplify fault tolerance, the output of each MapReduce task and job is materialized to ...