Sciweavers

642 search results - page 11 / 129
» Answering XML Queries on Heterogeneous Data Sources
Sort
View
COOPIS
2004
IEEE
13 years 11 months ago
Learning Classifiers from Semantically Heterogeneous Data
Semantically heterogeneous and distributed data sources are quite common in several application domains such as bioinformatics and security informatics. In such a setting, each dat...
Doina Caragea, Jyotishman Pathak, Vasant Honavar
DOLAP
2004
ACM
14 years 28 days ago
Evaluating XML-extended OLAP queries based on a physical algebra
In today’s OLAP systems, integrating fast changing data, e.g., stock quotes, physically into a cube is complex and time-consuming. The widespread use of XML makes it very possib...
Xuepeng Yin, Torben Bach Pedersen
ICDE
2003
IEEE
125views Database» more  ICDE 2003»
14 years 8 months ago
Querying XML data sources in DB2: the XML Wrapper
Vanja Josifovski, Peter M. Schwarz
CIKM
2010
Springer
13 years 6 months ago
Query optimization for ontology-based information integration
In recent years, there has been an explosion of publicly available RDF and OWL data sources. In order to effectively and quickly answer queries in such an environment, we present...
Yingjie Li, Jeff Heflin
DGO
2004
102views Education» more  DGO 2004»
13 years 9 months ago
A Web Query System for Heterogeneous Government Data
This paper describes a Web-based query system for semantically heterogeneous government-produced data. Geospatial Web-based information systems and portals are currently being dev...
Nancy Wiegand, Naijun Zhou, Isabel F. Cruz, Willia...