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» A Database of Narrative Schemas
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SEBD
2008
170views Database» more  SEBD 2008»
13 years 10 months ago
A platform for model-independent solutions to model management problems
Abstract. Model management is a metadata-based approach to database problems aimed at supporting the productivity of developers by providing schema manipulation operators. Here we ...
Paolo Atzeni, Luigi Bellomarini, Francesca Bugiott...
IAJIT
2010
133views more  IAJIT 2010»
13 years 7 months ago
Mediation Queries Adaptation After the Removal of a Data Source
: A broad variety of data is available in distinct heterogeneous sources, stored under different formats: database formats (in relational and object-oriented models), document form...
Latifa Baba-hamed
VLDB
1997
ACM
165views Database» more  VLDB 1997»
14 years 28 days ago
DataGuides: Enabling Query Formulation and Optimization in Semistructured Databases
In semistructured databases there is no schema fixed in advance. To provide the benefits of a schema in such environments, we introduce DataGuides: concise and accurate structural...
Roy Goldman, Jennifer Widom
SIGMOD
2004
ACM
163views Database» more  SIGMOD 2004»
14 years 9 months ago
Constraint-Based XML Query Rewriting For Data Integration
We study the problem of answering queries through a target schema, given a set of mappings between one or more source schemas and this target schema, and given that the data is at...
Cong Yu, Lucian Popa
EDBT
2008
ACM
123views Database» more  EDBT 2008»
14 years 9 months ago
XML data integration in SixP2P: a theoretical framework
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...
Tadeusz Pankowski