586 search results - page 109 / 118 » Answering Multiple-Item Queries in Data Broadcast Systems |
WSDM
2009
ACM
14 years 5 months ago
2009
ACM
There has been considerable past work on efficiently computing top k objects by aggregating information from multiple ranked lists of these objects. An important instance of this...
KRDB
1998
14 years 3 days ago
1998
We present a semantic caching approach for optimizing the performance of information mediators. A critical problem with information mediators, particularly those gathering and int...
CIKM
2010
Springer
13 years 9 months ago
2010
Springer
Computing shortest paths between two given nodes is a fundamental operation over graphs, but known to be nontrivial over large disk-resident instances of graph data. While a numbe...
WWW
2008
ACM
14 years 11 months ago
2008
ACM
The World Wide Web Consortium's RDF standard primarily consists of (subject,property,object) triples that specify the value that a given subject has for a given property. How...
CIKM
2005
Springer
14 years 4 months ago
2005
Springer
Accurately and efficiently estimating the number of distinct values for some attribute(s) or sets of attributes in a data set is of critical importance to many database operation...