The AutoMed Schema Integration Repository
نویسندگان
چکیده
منابع مشابه
View Generation and Optimisation in the AutoMed Data Integration Framework
This paper describes view generation and view optimisation in the AutoMed heterogeneous data integration framework. In AutoMed, schema integration is based on the use of reversible schema transformation sequences. We show how views can be generated from such sequences, for global-as-view (GAV), local-as-view (LAV) and GLAV query processing. We also present techniques for optimising these genera...
متن کاملUsing AutoMed for XML data transformation and integration
This paper describes how the AutoMed data integration system is being extended to support the integration of heterogeneous XML documents. So far, the contributions of this research have been the development of two algorithms. One restructures the schema describing an XML document into another schema, and the other materialises an integrated schema resulting from the transformation of several so...
متن کاملInvestigating a heterogeneous data integration approach for data warehousing
Data warehouses integrate data from remote, heterogeneous, autonomous data sources into a materialised central database. The heterogeneity of these data sources has two aspects, data expressed in different data models, called model heterogeneity, and data expressed within different schemas of the same data model, called schema heterogeneity. AutoMed is an approach to heterogeneous data transfor...
متن کاملKnowledge Transformation using a Hypergraph Data Model
In the Semantic Web, knowledge integration is frequently performed between heterogeneous knowledge bases. Such knowledge integration often requires the schema expressed in one knowledge modelling language be translated into an equivalent schema in another knowledge modelling language. This paper defines how schemas expressed in OWL-DL (the Web Ontology Language using Description Logic) can be t...
متن کاملSchema Evolution in Data Warehousing Environments - A Schema Transformation-Based Approach
In heterogeneous data warehousing environments, autonomous data sources are integrated into a materialised integrated database. The schemas of the data sources and the integrated database may be expressed in different modelling languages. It is possible for either the data source schemas or the warehouse schema to evolve. This evolution may include evolution of the schema, or evolution of the m...
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تاریخ انتشار 2002