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Ontology-Lexicon Community Group

This is the Wiki for the Ontology-lexicon community group, which aims to build a model for representing lexical information relative to ontologies based on the existing work of members, including the lemon project.

Current drafts

The Final Model Specification has been published in May 2016 as a W3C Community Report.

The latest version of all the ontology modules, documentation and accompanying examples can be found GitHub (also see here for the original drafts).


A descriptions of the goals, scope and mission of the community group can be found here: Goals and Scope of Ontology-Lexica Community Group

The overall schedule could looks as follows:

M1: Specification of Use Cases (final version by end of 2012)

M2: Specification of Requirements (final version by end of 2013)

M3: Specification of Core Model (final version by end of 2014)

M4: Specification of Modules to be developed (final specification by March 2015)

Use Cases

Here we detail the Specification of Use Cases as well as Real Scenarios for Use Cases, in particular with respect to the following datasets:

Eurosentiment: Semantically Interoperable Language Resources for Sentiment Analysis

IFLA: The International Federation of Library Associations and Institutions

AGROVOC: The multilingual (25 langs) Agriculture Concept Scheme maintained by the Food and Agriculture Organization of the United Nations

VOCBENCH: A web application for collaborative editing of SKOS-XL concept schemes; could support ontolex vocabulary once it is ready

SEMAGROW: an EU funded project about: "Data Intensive Techniques to Boost the Real-time Performance of Global Agricultural Data Infrastructures"; it covers the following use cases: IE, OA, LLD and SAOM


Specification of Requirements

New modules

New models that have been/are being developed after publication of the OntoLex Community Report (2016-05):

Lexicography: development closed, published as Community Report (2019-09)

Morphology: development on halt, near-final draft (currently being consolidated by editor)

Frequency, Attestation and Corpus Information: development on-going, draft on GitHub

Multimodality: proposed

Note that these modules are being developed in independent telco series, coordinated and announced via the OntoLex mailing list, but with their own conventions on archiving, documentation and sharing drafts (as documented on their wiki pages).

Suggested extensions

Phenomena for which extensions are possible or have been suggested but which are not currently pursued in designated telco series.


Valency and Semantics


Meetings of the Community Group

Upcoming teleconferences

Past teleconferences


Previous draft documents


Issues of the proposed core more here: Core Model Poll


Specification of Core Model

OntoLex Core Model (Core Model Poll)

Variation Module

Translation Module

Syntax and Semantics Module

Metadata Module

Linking to SKOS


3rd Ontolex Workshop @ LDK 2021