436 search results - page 6 / 88 » Estimating the Quality of Data in Relational Databases |
DATASCIENCE
2006
14 years 9 months ago
2006
There is clear demand for a global spatial public domain roads data set with improved geographic and temporal coverage, consistent coding of road types, and clear documentation of...
158
Voted
SIGMOD
2005
ACM
15 years 9 months ago
2005
ACM
Statistical estimation and approximate query processing have become increasingly prevalent applications for database systems. However, approximation is usually of little use witho...
VLDB
1995
ACM
15 years 1 months ago
1995
ACM
We provide several new sampling-based estimators of the number of distinct values of an attribute in a relation. We compare these new estimators to estimators from the database an...
ER
2008
Springer
14 years 11 months ago
2008
Springer
We address the fundamental question: what does it mean for data in a database to be of high quality? We motivate our discussion with examples, where traditional views on data quali...
COLT
2000
Springer
15 years 2 months ago
2000
Springer
We study model selection strategies based on penalized empirical loss minimization. We point out a tight relationship between error estimation and data-based complexity penalizatio...