249 search results - page 30 / 50 » Online Aggregation |
AAAI
2008
13 years 10 months ago
2008
One of the core goals of the Semantic Web is to store data in distributed locations, and use ontologies and reasoning to aggregate it. Social networking is a large movement on the...
CORR
2011
Springer
13 years 3 months ago
2011
Springer
Network virtualization is a paradigm that allows for flexible and efficient allocation of the resources among multiple virtual networks (VNets). In this paper we deal with the p...
SSDBM
1999
IEEE
14 years 23 days ago
1999
IEEE
Multidimensional Analysis in On-Line Analytical Processing (OLAP), and Scientific and statistical databases (SSDB) use operations requiring summary information on multi-dimensiona...
SIGMOD
2002
ACM
14 years 8 months ago
2002
ACM
Recently, Haas and Hellerstein proposed the hash ripple join algorithm in the context of online aggregation. Although the algorithm rapidly gives a good estimate for many join-agg...
SIGMOD
2011
ACM
12 years 11 months ago
2011
ACM
We study the problem of context-sensitive ranking for document retrieval, where a context is defined as a sub-collection of documents, and is specified by queries provided by do...