183 search results - page 24 / 37 » Improving Query Answering over DL-Lite Ontologies |
MDM
2007
Springer
14 years 1 months ago
2007
Springer
This work tackles the problem of answer-aggregation for continuous spatio-temporal range queries in distributed settings. We assume a grid-like coverage of the spatial universe of...
SIGMOD
2011
ACM
12 years 9 months ago
2011
ACM
Prior work in differential privacy has produced techniques for answering aggregate queries over sensitive data in a privacypreserving way. These techniques achieve privacy by addi...
SIGMETRICS
2011
ACM
12 years 9 months ago
2011
ACM
The massive data streams observed in network monitoring, data processing and scientific studies are typically too large to store. For many applications over such data, we must ob...
EDBT
2012
ACM
11 years 9 months ago
2012
ACM
In this paper we consider the problem of answering queries using views, with or without ontological constraints, which is important for data integration, query optimization, and d...
DEXA
2005
Springer
14 years 16 days ago
2005
Springer
Bitmap indices are efficient data structures for processing complex, multi-dimensional queries in data warehouse applications and scientific data analysis. For high-cardinality at...