116 search results - page 16 / 24 » Clustering-Based Materialized View Selection in Data Warehou... |
ICDE
2010
IEEE
14 years 7 months ago
2010
IEEE
A fundamental problem in XML query processing is tree pattern query (TPQ) matching which computes all data instances in an XML database that match an input TPQ. There is a lot of r...
DAWAK
2003
Springer
14 years 28 days ago
2003
Springer
In a data warehouse (DW) environment, when the operational environment does not posses or does not want to inform the data about the changes that occurred, controls have to be impl...
ICDE
1999
IEEE
14 years 9 months ago
1999
IEEE
OLAP systems support data analysis through a multidimensional data model, according to which data facts are viewed as points in a space of application-related dimensions", or...
ICDE
2001
IEEE
14 years 9 months ago
2001
IEEE
We consider the problems of computing aggregation queries in temporal databases, and of maintaining materialized temporal aggregate views efficiently. The latter problem is partic...
SIGMOD
2011
ACM
12 years 10 months ago
2011
ACM
We study the problem of context-sensitive ranking for document retrieval, where a context is defined as a sub-collection of documents, and is specified by queries provided by do...