41 search results - page 2 / 9 » Column Heterogeneity as a Measure of Data Quality |
SDM
2012
SIAM
11 years 7 months ago
2012
SIAM
Low-rank approximations which are computed from selected rows and columns of a given data matrix have attracted considerable attention lately. They have been proposed as an altern...
SIGMOD
1999
ACM
13 years 9 months ago
1999
ACM
Research and products for the integration of heterogeneous legacy source databases in data warehousing have addressed numerous data quality problems in or between the sources. Suc...
ER
1998
Springer
13 years 9 months ago
1998
Springer
Data warehouses are complex systems that have to deliver highly-aggregated, high quality data from heterogeneous sources to decision makers. Due to the dynamic change in the requir...
FAST
2009
13 years 2 months ago
2009
Some tasks in a dataspace (a loose collection of heterogeneous data sources) require integration of fine-grained data from diverse sources. This work is often done by end users kn...
SIGIR
2005
ACM
13 years 10 months ago
2005
ACM
In this paper we use a Unified Relationship Matrix (URM) to represent a set of heterogeneous data objects (e.g., web pages, queries) and their interrelationships (e.g., hyperlinks...