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» Checking Containment of Schema Mappings (Preliminary Report)
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AMW
2009
12 years 2 months ago
Checking Containment of Schema Mappings (Preliminary Report)
In data exchange, data are materialised from a source schema to a target schema, according to suitable source-to-target constraints. Constraints are also expressed on the target sc...
Andrea Calì, Riccardo Torlone
DEXA
2007
Springer
154views Database» more  DEXA 2007»
12 years 8 months ago
Performance Oriented Schema Matching
Abstract. Semantic matching of schemas in heterogeneous data sharing systems is time consuming and error prone. Existing mapping tools employ semi-automatic techniques for mapping ...
Khalid Saleem, Zohra Bellahsene, Ela Hunt
OTM
2005
Springer
12 years 7 months ago
Spatio-temporal Schema Integration with Validation: A Practical Approach
We propose to enhance a schema integration process with a validation phase employing logic-based data models. In our methodology, we validate the source schemas against the data mo...
Anastasiya Sotnykova, Nadine Cullot, Christelle Va...
SIGMOD
2004
ACM
127views Database» more  SIGMOD 2004»
13 years 1 months ago
Efficient Query Reformulation in Peer-Data Management Systems
Peer data management systems (PDMS) offer a flexible architecture for decentralized data sharing. In a PDMS, every peer is associated with a schema that represents the peer's...
Igor Tatarinov, Alon Y. Halevy
MVA
1990
162views Computer Vision» more  MVA 1990»
12 years 2 months ago
Map-Driven Image Interpretation by Associative Model Indexing
d at a high abstraction level, and consists in an expectation-driven search starting from symbolic object descriptions and using a version of a distributed blackboard system for re...
Gian Luca Foresti, Vittorio Murino, Carlo S. Regaz...
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