1000 search results - page 57 / 200 » Provenance for Aggregate Queries |
WSDM
2009
ACM
14 years 4 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...
VLDB
2005
ACM
14 years 3 months ago
2005
ACM
We extend the OLAP data model to represent data ambiguity, specifically imprecision and uncertainty, and introduce an allocation-based approach to the semantics of aggregation qu...
ICDE
2007
IEEE
14 years 11 months ago
2007
IEEE
Skyline query processing has been investigated extensively in recent years, mostly for only one query reference point. An example of a single-source skyline query is to find hotel...
SIGMOD
2008
ACM
14 years 10 months ago
2008
ACM
Data lineage and data provenance are key to the management of scientific data. Not knowing the exact provenance and processing pipeline used to produce a derived data set often re...
IDEAS
1999
IEEE
14 years 2 months ago
1999
IEEE
Data-warehousing applications cope with enormous data sets in the range of Gigabytes and Terabytes. Queries usually either select a very small set of this data or perform aggregat...