412 search results - page 40 / 83 » Aggregate queries over ontologies |
CIKM
2010
Springer
13 years 8 months ago
2010
Springer
In advertising and content relevancy prediction it is important to understand whether, over time, information that reaches one demographic group spreads to others. In this paper w...
SEMWEB
2009
Springer
14 years 4 months ago
2009
Springer
Spreadsheet tools are often used in business and private scenarios in order to collect and store data, and to explore and analyze these data by executing functions and aggregation...
SSDBM
2007
IEEE
14 years 4 months ago
2007
IEEE
In stream join processing with limited memory, uniform random sampling is useful for approximate query evaluation. In this paper, we address the problem of reservoir sampling over...
SIGMOD
2007
ACM
14 years 10 months ago
2007
ACM
Managing uncertain data using probabilistic frameworks has attracted much interest lately in the database literature, and a central computational challenge is probabilistic infere...
KDD
2008
ACM
14 years 10 months ago
2008
ACM
Extracting entities (such as people, movies) from documents and identifying the categories (such as painter, writer) they belong to enable structured querying and data analysis ov...