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A strategy for automatic resource migration based on ontology changes

IP.com Disclosure Number: IPCOM000228135D
Publication Date: 2013-Jun-08
Document File: 2 page(s) / 41K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is an approach to automate resource migration based on ontology changes. The first part of the invention proposes a way to partially generate the migration transformation between two consecutive versions of an ontology. The second part of the invention proposes a way to automate the migration of graphs between any, possible non-consecutive, versions of the ontology.

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A strategy for automatic resource migration based on ontology changes

In the semantic web, information of a given domain is represented in the form of triples; each triple has a subject, a predicate an object. A set of triples that are

managed together is called a graph. These graphs are usually organized according to a set of ontologies, each consisting of classes and properties, which give the

syntax and semantics of these triples. These ontologies are often evolving to cope

with problems and to address changing requirements of a domain . While some of these changes are backward compatible with previous versions of the ontologies, it is not uncommon for them to be non-compatible. In the latter case, the graphs may need to migrate to be compatible with the new ontology versions.

This migration is often expressed as a transformation between two versions : the old and the new. However, a couple of issues can complicate this scenario: 1) a transformation between two versions needs to be defined, which is often a complex

manual task, and 2) migration of graphs may occur between non-consecutive versions of an ontology (e.g., from version 1 to 4 directly), which is often supported

by different transformations between version pairs.

This invention proposes an approach to automate resource migration based on ontology changes. The first part of the invention describes a way to automatically generate some of the migration transformation between two consecutive versions of an ontology. The second part describes how to automate the migration of graphs between any, possibly non-consecutive, versions of an ontology.

The first part of the invention proposes a way to partially generate the migration transformation between two consecutive versions of an ontology. Assume the

usage of a declarative rule based transformation language, such as SPARQL Update, to define the migration transformation in (although this is not a critical requirement). The idea relies on the fact that a lot of non -compatible changes that need to done to ontologies (e.g., class/property name changes, deleting a property/class, merging of classes, changing the type of a property, etc.) can be formatted in a temp...