1445 search results - page 70 / 289 » XPath query containment |
DLOG
2008
15 years 5 days ago
2008
Answering queries posed over knowledge bases is a central problem in knowledge representation and database theory. In databases, query containment is one of the important query op...
CORR
2011
Springer
14 years 4 months ago
2011
Springer
In this paper, we present the design of a scalable, distributed stream processing system for RFID tracking and monitoring. Since RFID data lacks containment and location informati...
IS
2007
14 years 9 months ago
2007
Preference queries are relational algebra or SQL queries that contain occurrences of the winnow operator (find the most preferred tuples in a given relation). Such queries are pa...
VLDB
2005
ACM
15 years 3 months ago
2005
ACM
In this demonstration, we describe a system for storing and querying faceted hierarchies. We have developed a general faceted domain model and a query language for hierarchically ...
ECIR
2007
Springer
14 years 11 months ago
2007
Springer
Question answering systems rely on retrieval components to identify documents that contain an answer to a user’s question. The formulation of queries that are used for retrieving...