1487 search results - page 8 / 298 » Representing and Querying Data Transformations |
PODS
2004
ACM
14 years 7 months ago
2004
ACM
Data exchange is the problem of taking data structured under a source schema and creating an instance of a target schema. Given a source instance, there may be many solutions ? ta...
DEXA
2008
Springer
13 years 9 months ago
2008
Springer
In this research, we propose to use the discrete cosine transform to approximate the cumulative distributions of data cube cells' values. The cosine transform is known to have...
ADBIS
2004
Springer
14 years 23 days ago
2004
Springer
In this paper we consider concurrent execution of multiple data mining queries in the context of discovery of frequent itemsets. If such data mining queries operate on similar part...
PVLDB
2010
13 years 5 months ago
2010
Range queries based on L1 distance are a common type of queries in multimedia databases containing feature vectors. We propose a novel approach that transforms the feature space i...
CIKM
2000
Springer
13 years 11 months ago
2000
Springer
The complexity of deploying high-performance spatial structures in transactional DBMS environments has motivated researchers to experiment with the idea of reusing the effort inve...