183 search results - page 22 / 37 » Improving Query Answering over DL-Lite Ontologies |
IJCIS
2000
13 years 6 months ago
2000
Ontobroker applies Artificial Intelligence techniques to improve access to heterogeneous, distributed and semistructured information sources as they are presented in the World Wid...
SIGMOD
2007
ACM
14 years 7 months ago
2007
ACM
Query processing over graph-structured data is enjoying a growing number of applications. Keyword search on a graph finds a set of answers, each of which is a substructure of the ...
AMW
2010
13 years 8 months ago
2010
In this work we present in-network techniques to improve the efficiency of spatial aggregate queries. Such queries are very common in a sensornet setting, demanding more targeted t...
PVLDB
2008
13 years 6 months ago
2008
Data integration systems often provide a uniform query interface, called a mediated schema, to a multitude of data sources. To answer user queries, such systems employ a set of se...
CIKM
2011
Springer
12 years 7 months ago
2011
Springer
We present Nyaya, a system for the management of Semantic-Web data which couples a general-purpose and extensible storage mechanism with efficient ontology reasoning and querying ...