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I am looking for an ontology or a controlled vocabulary which contains concepts about many domains such as transport, environment, engineering.

Is there such a vocabulary available?

  • I'd recommend that you look at library filing systems. (Universal Decimal Classification, Dewey Decimal System, Library of Congress Subject Headings, etc.) – Joe Oct 23 '15 at 17:10
  • Look at this question. – Stanislav Kralin Jun 24 '17 at 7:14
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There are several "common" ontologies published for Open Data. Here are some:

Linked Open Vocabulary (LOV): http://lov.okfn.org/dataset/lov/

Linked Open Data (LOD) : http://linkeddata.org/

We (OpenGeoCode) have our own published ontology:

Vocabulary: http://www.opengeocode.org/cude1.2/LinkedCSV-Vocab.php
Specification: http://www.opengeocode.org/cude1.2/csv1.2.php

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The open directory project DMOZ is probably too shallow for scientific use, but maybe appropriate to get a "average Joe" perspective on concepts visible in such topics as

Another more extensive, but messier and more involved procedure to look into the structure of Wikipedia categories. Here is an example tree for Environment. Problem: they are chaos.

  • The hierarchy is interesting, do they have an ontology for describing this hierarchy ? – user1774937 Nov 10 '15 at 13:05
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You could also take a look at Adam Pease's SUMO (Suggested Upper Merged Ontology) which is quite broad and covers those knowledge domains.

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