Implementation of Tuned Schema Merging Approach
نویسندگان
چکیده
منابع مشابه
Constraint driven schema merging
Schema integration is the process of consolidating several source schemas to generate a unified view, called the mediated schema, so that information scattered in the sources can be served uniformly from the mediated schema. Schema integration occurs in many scenarios such as data integration, logical database design, data warehousing and schema evolution. To make the mediated schema useful for...
متن کاملGeneric Schema Merging
Schema merging is the process of integrating several schemas into a common, unified schema. There have been various approaches to schema merging, focusing on particular modeling languages, or using a lightweight, abstract metamodel. Having a semantically rich representation of models and mappings is particularly important for merging as semantic information is required to resolve the conflicts ...
متن کاملTheoretical Aspects of Schema Merging
A general technique for merging database schemas is developed that has a number of advantages over existing techniques, the most important of which is that schemas are placed in a partial order that has bounded joins. This means that the merging operation, when it succeeds, is both associative and commutative, i.e., that the merge of schemas is independent of the order in which they are conside...
متن کاملSchema Matching and Schema Merging based on Uncertain Semantic Mappings
This dissertation lies in the research area of schema integration: the problem of combining the data of different data sources by creating a unified representation of these data. Two core issues in schema integration are schema matching, i.e. the identification of correspondences, or mappings, between input schema objects, and schema merging, i.e. the creation of a unified schema based on the i...
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Merging schemas to create a mediated view is a recurring problem in applications related to data interoperability. The task becomes particularly challenging when the schemas are highly heterogeneous and autonomous. Classical data integration systems rely on a mediated schema created by human experts through an intensive design process. Automatic generation of mediated schemas is still a goal to...
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ژورنال
عنوان ژورنال: Mehran University Research Journal of Engineering and Technology
سال: 2018
ISSN: 0254-7821,2413-7219
DOI: 10.22581/muet1982.1804.05