OntoLancs Building ontologies by Ensemble Methods
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- Project: OntoLancs
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Highlights
Ensemble Methods for Ontology Learning
OntoLancs is a new framework for ontology learning. A java
tool to support this framework have been developed. However, this tool is
not available to download yet. We will let you know when this tool will be
available to download.
- OntoLancs Tips Month: Plug-ins
Read about how to create a new plug-in for OntoLancs - Eleven NLP and Machine Learning techniques are already included
into OntoLancs
Read about how to use the above techniques
Authors
Collaborators
Destinations & Events
Project
- Summarize
OntoLancs, was created for investigating how best to combine individual techniques as ensembles. OntoLancs provides a protocol that enables NLP techniques to be treated as plug-ins. Once integrated, different techniques can be combined using a simple language. OntoLancs also provides support for organizing the discovered concepts into a domain ontology and encoded using the OWL ontology language. f a domain ontology already exists, the results of applying NLP techniques can be compared against it and the techniques performance can be benchmarked.
We are using this feature to evaluate the relative performance of different ensembles of NLP techniques in order to guide their application in analysis problems. - Tutorial
Read a tutorial about OntoLancs
Help & Support
- Phase 1: Pre-Processing
Domain texts are tagged morpho-syntactically and semantically - Phase 2: Ensemble Methods
The system provides a set of NLP and machine learning methods, which an user can combine in order to identify candidate concepts - Phase 3: Concepts Definition
In this phase, a domain lexicon is built. Definitions for each concept are extracted from several on-line sources automatically - Phase 4: Domain Ontology Construction
Concepts extracted during the previous phase are added to an intermediate ontology
Publications
Refereed Journals
- Knowledge-Based System -Elsevier
Vol. 21/3 pp 192-199, 2008
Refereed Conferences
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Conference 2008
7th IEEE/ACIS International Conference on Computer and Information Science (ICIS’08), May 2008, Portland, Oregon -
Conference 2007
- AI-2007 Twenty-seventh SGAI International Conference on Artificial Intelligence Cambridge, England 10-12 December 2007
- UK e-Science All Hands Meeting 2007,Nottingham, UK, 10th-13th September 2007
- 14th Monterey Workshop on Innovations for Requirement Analysis: from Stakeholders Needs to Formal Designs.
Screenshots
OntoLancs Screenshots
Create your own ontology learning process through combinations
of techniques
Click on a row to provide a definition for each relevant key domain term
- Set of images
See a complete set of images of OntoLancs
Download OntoLancs Framework Images
Download
- Register as a ontolancs user
From now
Contact
- Email
Sent and email to r.gacitua AT lancs.ac.uk
