140 search results - page 6 / 28 » RDF Aggregate Queries and Views |
VLDB
2005
ACM
14 years 1 months ago
2005
ACM
Devising a scheme for efficient and scalable querying of Resource Description Framework (RDF) data has been an active area of current research. However, most approaches define new...
BMCBI
2008
13 years 7 months ago
2008
Background: The most renowned biological ontology, Gene Ontology (GO) is widely used for annotations of genes and gene products of different organisms. However, there are shortcom...
BXML
2004
13 years 9 months ago
2004
Abstract. There exist different ways how to understand and use context information for RDF data. This paper summarizes these different ways and concentrates on the source informati...
SIGMOD
1998
ACM
13 years 12 months ago
1998
ACM
The Relational On-Line Analytical Processing (ROLAP) is emerging as thedominant approach in data warehousing with decision support applications. In order to enhance query performa...
SIGMOD
2006
ACM
14 years 7 months ago
2006
ACM
We study the problem of finding efficient equivalent viewbased rewritings of relational queries, focusing on query optimization using materialized views under the assumption that ...