642 search results - page 49 / 129 » Answering XML Queries on Heterogeneous Data Sources |
DPD
2002
13 years 8 months ago
2002
The mediator-wrapper approach to integrate data from heterogeneous data sources has usually been centralized in the sense that a single mediator system is placed between a number o...
ICDT
2010
ACM
14 years 6 months ago
2010
ACM
The work reported here lays the foundations of data exchange in the presence of probabilistic data. This requires rethinking the very basic concepts of traditional data exchange, ...
ICDE
2003
IEEE
14 years 10 months ago
2003
IEEE
XML path queries form the basis of complex filtering of XML data. Most current XML path query processing techniques can be divided in two groups. Navigation-based algorithms compu...
ERCIMDL
2007
Springer
14 years 2 months ago
2007
Springer
Abstract. In this paper we present an approach to question answering over heterogeneous knowledge sources that makes use of different ontology management components within the sce...
PODS
2011
ACM
12 years 11 months ago
2011
ACM
In the traditional data exchange setting, source instances are restricted to be complete in the sense that every fact is either true or false in these instances. Although natural ...