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Semantic schema refinements for multilevel schema integration
Data & Knowledge Engineering, 1998Abstract Within the database field, schema refinements have been proved useful for documentation and maintenance purposes; moreover, schemata describing the reality of interest at different levels of abstraction are extensively used in Computer Aided Software Engineering tools and visual query languages.
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"Schema Abstraction" in a Multiple-Trace Memory Model
, 1986A simulation model of episodic memory, MINERVA 2, is applied to the learning of concepts, as represented by the schema-abstraction task. The model assumes that each experience produces a separate memory trace and that knowledge of abstract concepts is ...
D. L. Hintzman
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Mapping XML-Schema to Relational Schema
2002XML is fast emerging as the dominant standard for representing data in Internet. One efficient path to store it is transforming XML data into relational database. Exiting XML-to-RDB algorithms focus only on the structure and ignore semantic constrains, in addition, their inputting is not XML-Schema but DTD.
Zhou Jingtao +3 more
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A Review of Star Schema and Snowflakes Schema
2020In the new age, digital data is the most important source of acquiring knowledge. For this purpose, collect data from various sources like websites, blogs, webpages, and most important databases. Database and relational databases both provide help to decision making in the future work.
M. Zafar Iqbal +5 more
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2023
The concept of schema originates in Kant’s Critique of Pure Reason, where it functioned as a bridge between sensibility and concepts. Since then, it has become foundational to many constructivist theories of mind and memory. In the twentieth century, it became central in psychology mainly through the work of Bartlett and Piaget, who offered an ...
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The concept of schema originates in Kant’s Critique of Pure Reason, where it functioned as a bridge between sensibility and concepts. Since then, it has become foundational to many constructivist theories of mind and memory. In the twentieth century, it became central in psychology mainly through the work of Bartlett and Piaget, who offered an ...
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Translating Relational Schema With Constraints Into OODB Schema
1993Abstract We consider the problem of translating a relational database schema into that of an object-oriented database. Our approach is designed to extract semantics by investigating into the structure of relations, their key constraints, and inclusion/referential constraints. These constraints can be existing ones from the schema or they can be given
Yan, Ling-Ling, Ling, Tok-Wang
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Schema Homomorphism – An Algebraic Framework for Schema Matching
2005A formal framework for SMP is important because it facilitates the building of algorithm model and the evaluation of algorithms. First, we propose a formal definition of schema matching that is named multivalent matching, i.e., an individual of source schema can be associated with a set of individuals of target schema.
Zhang, Z. +4 more
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