664 search results - page 22 / 133 » Answering order-based queries over XML data |
SEMWEB
2010
Springer
14 years 7 months ago
2010
Springer
Abstract. In order to effectively and quickly answer queries in environments with distributed RDF/OWL, we present a query optimization algorithm to identify the potentially relevan...
100
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ICDE
2010
IEEE
15 years 9 months ago
2010
IEEE
Many web databases can be seen as providing partial and overlapping information about entities in the world. To answer queries effectively, we need to integrate the information abo...
SIGMOD
2003
ACM
15 years 10 months ago
2003
ACM
Many applications employ sensors for monitoring entities such as temperature and wind speed. A centralized database tracks these entities to enable query processing. Due to contin...
SIGMOD
2004
ACM
15 years 10 months ago
2004
ACM
We study the problem of answering queries through a target schema, given a set of mappings between one or more source schemas and this target schema, and given that the data is at...
172
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ICDE
2006
IEEE
15 years 11 months ago
2006
IEEE
The detection of duplicate tuples, corresponding to the same real-world entity, is an important task in data integration and cleaning. While many techniques exist to identify such...