276 search results - page 19 / 56 » Answering XML Queries over Heterogeneous Data Sources |
144
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DOLAP
2004
ACM
15 years 10 months ago
2004
ACM
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...
135
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SIGMOD
1997
ACM
15 years 8 months ago
1997
ACM
The Distributed Information Search COmponent (Disco) is a prototype heterogeneous distributed database that accesses underlying data sources. The Disco prototype currently focuses...
177
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WWW
2011
ACM
14 years 11 months ago
2011
ACM
The problem of answering SPARQL queries over virtual SPARQL views is commonly encountered in a number of settings, including while enforcing security policies to access RDF data, ...
153
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DKE
1999
15 years 4 months ago
1999
A Data Warehouse DW is a database that collects and stores data from multiple remote and heterogeneous information sources. When a query is posed, it is evaluated locally, without...
168
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DGO
2004
15 years 5 months ago
2004
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...