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The tau Model, Formalizing Topic Maps

Paper, by Robert Barta and Gernot Salzer

This paper presents a formalization for Topic Maps.

External Link: download paper

This paper presents a formalization for Topic Maps™.We first simplify TMRM, the current ISO standard proposal for a TM reference model and then characterize topic map instances. After defining a minimal merging operator for maps we propose a formal foundation for a TM query language. This path expression language allows us to navigate through given topic maps and to extract information. We also show how such a language can be the basis for a more industrial version of a query language and how it may serve as foundation for a constraint language to define TM-based ontologies.


Robert Barta

No contact information available. 


Robert is project leader of Perl XTM Engine (superseeded.. and Perl TM.


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Topic Maps offers an information architecture for semantic portals with
highly networked content and access paths in support of the associative
human mind. It is our technology of choice for knowledge oriented
application systems.

Gerhard Weber
topicWorks Domains
Topic Maps Lab auf der Cebit 2011

Graduate from the Topic Maps Lab