Integrating structured data using property precedence

Mustafa, Safwan (2015) Integrating structured data using property precedence. Masters thesis, Memorial University of Newfoundland.

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Abstract

Data integration systems offer uniform access to a set of autonomous and heterogeneous data sources. One of the main challenges in data integration is reconciling semantic differences among data sources. Approaches that been used to solve this problem can be categorized as schema-based and attribute-based. Schema-based approaches use schema information to identify the semantic similarity in data; furthermore, they focus on reconciling types before reconciling attributes. In contrast, attribute-based approaches use statistical and structural information of attributes to identify the semantic similarity of data in different sources. This research examines an approach to semantic reconciliation based on integrating properties expressed at different levels of abstraction or granularity using the concept of property precedence. Property precedence reconciles the meaning of attributes by identifying similarities between attributes based on what these attributes represent in the real world. In order to use property precedence for semantic integration, we need to identify the precedence of attributes within and across data sources. The goal of this research is to develop and evaluate a method and algorithms that will identify precedence relations among attributes and build property precedence graph (PPG) that can be used to support integration.

Item Type: Thesis (Masters)
URI: http://research.library.mun.ca/id/eprint/11691
Item ID: 11691
Additional Information: Includes bibliographical references (pages 74-76).
Keywords: Data integration, open linked data, DBpedia, RDF, Jena, property precedence
Department(s): Science, Faculty of > Computer Science
Date: August 2015
Date Type: Submission
Library of Congress Subject Heading: Data integration (Computer science); Semantic computing; Graph theory--Data processing

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