48 search results - page 7 / 10 » Locally Consistent Transformations and Query Answering in Da... |
ICIP
1998
IEEE
14 years 9 months ago
1998
IEEE
We describe a new invariant-based data model for image databases under our approach for shape-based retrieval. The data model relies on contours description of the image shape, an...
EDBT
2008
ACM
14 years 7 months ago
2008
ACM
In the paper we discuss the problem of data integration in a P2P environment. In such setting each peer stores schema of its local data, mappings between the schema and schemas of...
IS
2006
13 years 7 months ago
2006
In-network data aggregation has been recently proposed as an effective means to reduce the number of messages exchanged in wireless sensor networks. Nodes of the network form an a...
JUCS
2008
13 years 7 months ago
2008
: We propose specification of schema mappings and agents' actions in XML data integration task. We discuss the problem in a highly-dynamic environment consisting of a communit...
COMPGEOM
1994
ACM
13 years 11 months ago
1994
ACM
Ray (segment) shooting is the problem of determining the first intersection between a ray (directed line segment) and a collection of polygonal or polyhedral obstacles. In order t...