199 search results - page 29 / 40 » Quete: Ontology-Based Query System for Distributed Sources |
SAC
2009
ACM
14 years 2 months ago
2009
ACM
XML data warehouses form an interesting basis for decisionsupport applications that exploit heterogeneous data from multiple sources. However, XML-native database systems currentl...
VLDB
2005
ACM
14 years 1 months ago
2005
ACM
To answer user queries, a data integration system employs a set of semantic mappings between the mediated schema and the schemas of data sources. In dynamic environments sources o...
DBPL
1999
Springer
13 years 12 months ago
1999
Springer
Semistructured databases are treated as dynamically typed: they come equipped with no independent schema or type system to constrain the data. Query languages that are designed fo...
DCOSS
2007
Springer
14 years 1 months ago
2007
Springer
With the proliferation of various kinds of sensor networks, we will see large amounts of heterogeneous data. They have different characteristics such as data content, formats, mod...
ISCC
2006
IEEE
14 years 1 months ago
2006
IEEE
Abstract— Today data sources are pervasive and their number is growing tremendously. Current tools are not prepared to exploit this unprecedented amount of information and to cop...