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TMQL tutorial, part 3

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This is the third part in a series of TMQL tutorials.

Learn with this series of TMQL tutorials how to query Topic Maps with a structured query language. With Maiana you can exercise all examples given in the slides (you have to be logged in to query maps in Maiana). The TMQL4J library allows you to use TMQL in all of your applications and provides you a detailed documentation of all TMQL features.

Part 3 of 8 of the TMQL tutorial covers postfix filters and projection. (If that isn’t meaningful now, it will be at the end of this part of tutorial.) Operators in TMQL are also covered. (All slides are in German.)

Go back to part 2 of this TMQL tutorial.
Proceed with part 4 of this TMQL tutorial.

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Subject Matter


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The tmql4j engine is the first Java-based engine processing the topic maps query language. The engine is designed as processing chain of independent ...

Visit homepage of TMQL4J


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Maiana - Yet another generic topic maps browser? Yes, but it's social :) *What it is?* Maiana is the most efficient service to host, explore and ...

Visit homepage of Maiana



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TMQL is the abbreviation for Topic Maps Query Language.


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Topic Maps is an excellent paradigm to support human thinking and to visualize networked information. As part of my PhD project, I therefore chose Topic Maps as the conceptual foundation for designing and implementing a software prototype for semantic knowledge retrieval.

Stefan Smolnik
Topic Maps Lab auf der Cebit 2011

Graduate from the Topic Maps Lab