As announced, Ontoware will go out of service at the end of this year. The Ontoware server will be switched off on 31st December 2009!
For more information, see https://ontoware.org/shutdown.html
Thursday, 21 January 2010
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X-Media Knowledge Access API
This API feature a store-independent access of knowledge. It offers an abstraction over RDF and OWL knowledge base and supports entity- and axiom-based access / manipulation / storage functionalities. Access to a particular store will be enabled by adapter implementation. Currently, adapters for KAON2 and Sesame2 are available.

This work was co-funded by the X-Media project (www.x-media-project.org) sponsored by the European Commission as part of the Information Society Technologies (IST) program under EC grant number IST-FP6- 026978.


Last Release (Monday, 10 March 2008)
AEON

Did you ever try to evaluate ontologies? Ever tried to apply OntoClean? Did you find it difficult and timeconsuming to tag all the concepts? We have a solution for you.

AEON (Automatic Evaluation of ONtologies) automatically tags concepts with appropriate OntoClean meta-properties. The implementation can be easily expanded to check the concepts for other abstract meta-properties, thus providing for the first time tool support in order to enable intensional ontology evaluation for concepts. Our main idea is using the web as an embodiment of objective world knowledge, where we search for patterns indicating concepts meta-properties. We get an automatic tagging of the ontology, thus reducing costs tremendously. Moreover, AEON lowers the risk of having subjective taggings.

OntoClean is a unique approach towards the formal evaluation of ontologies, as it analyses the intensional content of concepts. Although it is well documented in numerous publications, and its importance is widely acknowledged, it is still used rather infrequently due to the high costs for applying OntoClean, especially on tagging concepts with the correct meta-properties.

We believe that evaluation of Ontologies is important. Therefore we are working on lowering the burden associated with it. AEON is a highly valuable first step.

Publication: Johanna Völker, Denny Vrandecic, York Sure. Automatic Evaluation of Ontologies (AEON). In Y. Gil, E. Motta, V. R. Benjamins, M. A. Musen, Proceedings of the 4th International Semantic Web Conference (ISWC'05), volume 3729 of LNCS, pp. 716-731. Springer Verlag Berlin-Heidelberg, November 2005.

Last Release (Monday, 15 September 2008)
AIFB commons
Reusable, small bits of Java code, often but not always related to ontology driven development (ODD).


Almo - A workflow engine
An ontology-based workflow engine in JAVA supporting the ARTEMIS project.


Last Release (Wednesday, 31 January 2007)
Approximate Ontology Reasoning Workbench
This project implements the approximate reasoning approaches such as SCREECH, query approximation and the anytime reasoning with discrete times. Furthermore, it provides an array of tools supporting ontology benchmark, populations and materializations.


HELENOS - KDD Workbench
HELENOS is a Knowledge Discovery Workbench for the Semantic Web which maps the KDD process within a scalable framework to generate horn-logic rules explaining the given data. While HELENOS can generate expressive (relational) rules it keeps applicable.


Last Release (Friday, 22 June 2007)
Bibster
Bibster is a Java-based system which assists researchers in managing, searching, and sharing bibliographic metadata (e.g. from BibTeX files) in a peer-to-peer network. The advantage of the system is it provides the possibility to search on a distribute


Last Release (Saturday, 17 October 2009)
Change Logging
This project provides a plug-in for NeOnToolkit, which enables ontology changes tracing and registry.


Last Release (Sunday, 18 May 2008)
CompSem
The CompSem project provides an implementation of a UDRT-based compositional semantics approach on the basis of Lexical Tree Adjoining Grammars. It currenlty builds on the XTAG Parser.


Core Ontology of Services
The Core Ontologies of Software/Software Components/Services


Last Release (Tuesday, 30 August 2005)
DIG Plugin
DIG plug-in in NeOn Toolkit is used to provide a DIG client to facilitate users to switch different reasoners for their reasoning tasks, and provide graphical user interfaces to do some reasoning tasks like checking inconsistency of an ontology.


DILIGENT Argumentation Ontology
DILIGENT Argumentation Ontology helps Ontology Engineers to capture the requirements and arguments ocuring during the creation and maintainance of an ontology.


Last Release (Wednesday, 13 September 2006)
Effizient Decision Trees
Effizient Decision Tree Package fpr WEKA based on efficient Split Point Detection.


eMO - eMarket Ontologies
The collection of ontologies allows modeling of offers and requests in a market. The Bidding Ontology introduces the basic concepts for formalizing bids. It imports the Policy Ontology for attaching prices and preferences to highly configurable products. The Web Services Ontology introduces modeling primitives for describing behavioral as well as security aspects required for trading Web services. The ontology are described in several publications which can be found here.


Last Release (Friday, 22 December 2006)
evOWLution
evOWLution is a software component that supports the methods for the consistent evolution of OWL ontologies. It builds on top of the KAON2 ontology management infrastructure. The implementation includes evolution strategies for various fragments of ontology languages, including OWL-DL, OWL-Lite and OWL-DLP, as well evolution strategies for logical consistency. Additionally it allows to plug-in further evolution strategies for structural consistency (to support additional sublanguages), logical consistency, and user-defined consistency. The OWL Evolution strategies can also rely on contextual information such as the confidence annotations of Text2Onto to guide the evolution process.


Last Release (Monday, 30 October 2006)
FactAngler
FactAngler is an extensible tool for Open Information Extraction.


FraCoSem
This project provides a framework for computational semantics for research and teaching purposes.


Ontology- based Portal
Ontology- based PortalOntology- based PortalOntology- based PortalOntology- based PortalOntology- based PortalOntology- based Portal


Hydra - Software Property Manager
Hydra is a simply tool for defining "nested" configurations. Instead of just configurating single entries (as in java properties), you can define hierarchical structures of entry - value pairs and save them as XML files.


Last Release (Saturday, 13 January 2007)
iMapping
UI framework


jREST
jREST enables developers to write REST-based web services in Java much faster than before. Simply write a class with the methods "get", "put" and/or "post". Sit back and see the automatic parameter conversion do it's work and never see a servlets source code again.


Last Release (Tuesday, 5 June 2007)
KAON2 Evaluation
Packages for performing KAON2 evaluaion


KAON2Java
The tool creates Java API for OWL A-boxes.


KAON2 Similarity API
API and Toolsuite for similarity calculations in ontologies based on KAON2


Last Release (Tuesday, 14 November 2006)
KAONP2P
KAONP2P is a P2P-based application for distributed ontology management and reasoning based on the KAON2 system.


Last Release (Wednesday, 19 July 2006)
LeDA

LeDA (LEarning Disjointness Axioms) is a tool for the automatic generation of disjointness axioms.

Publication: Johanna Völker, Denny Vrandecic, York Sure, Andreas Hotho. Learning Disjointness. In Enrico Franconi, Michael Kifer, Wolfgang May, Proceedings of the 4th European Semantic Web Conference (ESWC'07), volume volume 4519 of Lecture Notes in Computer Science, pp. 175-189. Springer, June 2007.

A graphical user interface for LeDA is available as a plugin for the NeOn Toolkit ontology engineering environment.

Last Release (Tuesday, 14 July 2009)
LExO

LExO (Learning Expressive Ontologies) is a tool for transforming natural language definitions into OWL DL axioms.

Publication: Johanna Völker, Pascal Hitzler, Philipp Cimiano. Acquisition of OWL DL Axioms from Lexical Resources. In Enrico Franconi, Michael Kifer, Wolfgang May, Proceedings of the 4th European Semantic Web Conference (ESWC'07), volume 4519 of Lecture Notes in Computer Science, pp. 670-685. Springer, June 2007.

Last Release (Thursday, 15 May 2008)
LexOnto
Ontology and APIs for management of ontology lexica.


Last Release (Tuesday, 23 June 2009)
Ontology Alignment and Mapping
FOAM, Framework for Ontology Alignment and Mapping:

The ontology alignment framework is a tool to full- or semi-automatically align two or more OWL ontologies. It is based on heuristics (similarity) of the individual entities (concepts, relations, and instances). As result we receive pairs of aligned entities. The underlying research has already been presented at different conferences, see e.g.

Happy Aligning.

Last Release (Saturday, 11 August 2007)
MapPSO
MapPSO is a tool for Ontology Alignment, which uses Discrete Particle Swarm Optimisation. Revisiting the alignment problem as an optimisation problem, MapPSO uses a particle swarm to search for the optimal alignment. The algorithm is massively parallel and adapts naturally on parallel architectures.


Last Release (Monday, 29 September 2008)
Metis - FocusedCrawler
METIS is an intelligent, ontology-focused system to discover information among the web according to knowledge concepts modelled in an ontology.


Last Release (Tuesday, 5 July 2005)
Neonmodule
Ontology modularization is an important task in ontology engineering, maintenance and reuse. This project is to provide some main operations between two modules like union, intersection, in NeOn Toolkit.


Last Release (Wednesday, 19 November 2008)
NeOnQA
A graphic eclipse plugin for ontology integration and query answering over a distributed infrastructure.


Last Release (Sunday, 16 March 2008)
NeOn Toolkit
NeOn is a 14.7 million Euros project involving 14 European partners and co-funded by the European Commission’s Sixth Framework Programme under grant number IST-2005-027595. NeOn started in March 2006 and has a duration of 4 years. Our aim is to advance the state of the art in using ontologies for large-scale semantic applications in the distributed organizations. Particularly, we aim at improving the capability to handle multiple networked ontologies that exist in a particular context, are created collaboratively, and might be highly dynamic and constantly evolving. In this portal you can download the source code of the NeOn Toolkit. If you just to use it please go to the project homepage to find the latest executables.


Last Release (Wednesday, 29 July 2009)
NEPOMUK
NEPOMUK API preview


NEPOMUK SVN
NEPOMUK SVN


Ontology for Domain of Adaptive System
ODAS - An ontology for the Domain of Adaptive System This ontology allows adaptive systems to exchange and reuse information. The ontology encompasses all the model dimensions known to be relevant for personalization. It comes in different versions that can be used for reasoning to achieve personalization, or simply as a common vocabulary to exchange various model information.


Last Release (Friday, 29 February 2008)
OMV - Ontology Metadata Vocabulary
Ontologies have seen quite an enormous development and application in many domains within the last years, especially in the context of the next web generation, the Semantic Web. Besides the work of countless researchers across the world, industry starts developing ontologies to support their daily operative business. Currently, most ontologies exist in pure form without any additional information, e.g. authorship information, such as provided by Dublin Core for text documents. This burden makes it difficult for academia and industry e.g. to identify, find and apply - basically meaning to reuse - ontologies effectively and efficiently. Our contribution consists of a proposal for a metadata standard, so called Ontology Metadata Vocabulary OMV.


Last Release (Thursday, 24 December 2009)
ONTHOLOGY
Most ontologies today exist in pure form without any additional information, e.g. authorship or domain specific information. The proposed Ontology Metadata Vocabulary OMV aims to establish a standard which enables users from academia and industry to identify, find and apply - basically meaning to reuse - ontologies effectively and efficiently. Our demo/poster contribution consists of the presentation of the up-and-running metadata portal ONTHOLOGY (``anthology of ontologies'').


OntoCap
This is part of efforts in developing NeOn Toolkit


OntoCite - Semantic Citation Index
Ontology-based citation server


OntoManager - Usage Mining Tool
Ontology-based Usage Mining Framework


Last Release (Monday, 13 December 2004)
OntoProject Ontology
Ontology-based Project Management Methodology.


OntoScrape
OntoScrape OntoScrape OntoScrape OntoScrape


ORAKEL
ORAKEL is a natural language interface for knowledge bases. Currently it implements functionality for accessing F-Logic (using OntoBroker) and OWL (using KAON2/Sparql).


Last Release (Thursday, 26 July 2007)
OWL Benchmarking
OWL benchmarking aims to provide guidance for selecting the appropriate reasoner for a given application scenario. In order to so, the experiments are done based on some datasets with different fragments such as RDFS, OWL DL. Based on the benchmark results we identify which reasoners are most adequate for which classes of ontologies and corresponding reasoning tasks.


OWL-ODM
OWL-ODM provides software tools based on the OWL Object Definition Metamodel (ODM) to allow interoperability of OWL ontologies with MOF-compatible software environments. This includes the ODM itself, a UML profile for visual modeling of ontologies and a converter from EMF models to OWL.


Last Release (Wednesday, 4 March 2009)
OWL Tools
The KAON2 OWL tools are a set of tools for working on OWL files, exposing the abilities of the KAON2 ontology infrastructure to the command line.


Last Release (Wednesday, 7 June 2006)
Oyster
Peer to Peer System for storing and sharing ontology Metadata.


Last Release (Tuesday, 7 February 2006)
Oyster2
Distributed registry for ontology Metadata


Last Release (Wednesday, 23 September 2009)
Pattern Learner for Ontology Learning
Pronto, is a bootstrapping based relation extraction system. Given a small set of example facts (e.g. "Paris is located in France.", "Bejing is located in China") it is able to come up with a large amount of facts of that kind (e.g. a huge lists of cities and where they are located). To do so, Pronto considers the way the relations are mentioned in the text (i.e. what stands around "Paris" and "France" when these words occurr together). We set up Pronto to discover relations in this test Wikipedia between page titles and hyperlinks. When it discovers new facts, Pronto generates the questions, you will find on the bottom of the pages. The answers you give to these questions are used as confirmation of the results before they are written into the wiki and as feedback to improve output in the next iteration of the system.

If you are interested in the topic, you are invited to read the following research paper:

Sebastian Blohm, Philipp Cimiano: Using the Web to Reduce Data Sparseness in Pattern-based Information ExtractionIn Proceedings of the 11th European Conference on Principles and Practice of Knowledge Discovery in Databases (PKDD). Springer , Warsaw, Poland, September 2007 (http://www.aifb.uni-karlsruhe.de/Publikationen/showPublikation?publ_id=1507).

This work was co-funded by the X-Media project (www.x-media-project.org) sponsored by the European Commission as part of the Information Society Technologies (IST) program under EC grant number IST-FP6- 026978.


PaWs
PaWs (Parser Wrappers) provides a simple Java-based wrapper for the Minipar command line interface.


Last Release (Tuesday, 19 June 2007)
American President Ontology
An ontology about american presidents, illustrating how temporal aspects can be modeled in an ontology. The ontology models the presidents' period of government, their academic degrees, events such as wars, scandals etc. that happened during their presidency etc.


Last Release (Friday, 21 November 2008)
pronto4xmedia
In this project, our current activities in pattern based information extraction are integrated into the X-Media architecture.


qbmc
The purpose of the QBMC is to implement a FCA browsing framework using the techniques developed around the query based multicontext..


Qualia Acquisition Tool
This is a tool for automatically learning qualia structures from the Web.


Repair and Diagnosis for Ontologies
RaDON - Repair and Diagnosis for Ontology Networks - provides a set of techniques for dealing with inconsistencies and incoherence in ontologies. In particular, RaDON supports novel strategies and consistency models for distributed and networked environments.


Last Release (Friday, 15 June 2007)
rdf2go
WE HAVE MOVED. The project lives on at http://rdf2go.semweb4j.org


Last Release (Sunday, 11 February 2007)
RDF Reactor
Access RDF from Java without any RDF knowledge. Use inferencing. See data source like java objects as RDF. Use the data reactor for easy integration.


Last Release (Tuesday, 13 February 2007)
peersExpertiseRegistry
template peers Expertise Registry


RELExO

RELExO (Relational Exploration for Learning Expressive Ontologies) is a tool for reasoner-aided relational exploration of OWL DL ontologies, that has been developed to support the acquisition and refinement of complex class descriptions.

Publications:

Johanna Völker, Sebastian Rudolph. Lexico-Logical Acquisition of OWL DL Axioms - An Integrated Approach to Ontology Refinement. In Raoul Medina and Sergei Obiedkov, Proceedings of the International Conference on Formal Concept Analysis (ICFCA), Springer, February 2008.

Johanna Völker, Sebastian Rudolph. Fostering Web Intelligence by Semi-automatic OWL Ontology Refinement. In Proceedings of the International Conference on Web Intelligence (WI), 2008. to appear

Homepage: http://relexo.ontoware.org

Last Release (Wednesday, 29 April 2009)
Scraper
Automatic data extraction from HTML tables using xslt stylesheets.


SEAL - Semantic Portal
SEAL aims to use ontologies as key elements for managing community Web sites and Web portals. The ontology supports queries to multiple sources. It also uses schema information, allowing automatic generation of navigational views (such as navigation hierarchies and mixed ontology and content-based presentation. The core idea behind SEAL is that semantic portals for a community of users contributing and consuming information require Web site management and Web information integration. To reduce engineering and maintenance effort, SEAL uses an ontology for semantic integration of existing data sources and for Web site management and presentation to the outside world. SEAL exploits this ontology to offer mechanisms for acquiring, structuring, and sharing information through semantic annotations between human and machine agents.7 Thus, SEAL combines the advantages of Web site management on the one hand and Web information integration on the other hand.


SeMalAn
(Se)mantic (Ma)iling (L)ist (An)alyser - Got ever lost in following a heated mailing list discussion? Everybody quoting small snippets from somebody. Semalan helps out. It extracts all references and shows You a clean web view on the discussion.


Semantic Auction
Implementation of an auction plattform for trading semantically described goods or services. An auction schema is enriched by a set of components enabling semantics based matching as well as price-based allocations. Moreover, an approach for reducing the complexity of the auction system by means of background knowledge is proposed.


Semantic File System
Semantic File System


SemIPort Project
The SemIPort (Semantic Methods and Tools for Information Portals) project develops innovative methods and tools for creating and maintaining semantic information portals for scientific communities. The methods combine techniques developed in the areas of metadata, knowledge management, knowledge representation, personalization, and data visualization.


SemVersion - RDF Versioning
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WE MOVED TO http://semanticweb.org/wiki/SemVersion

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Last Release (Friday, 19 May 2006)
semweb4j
semweb4j gives a Java developer the semantic web within natural Java constructs. It bundles the projects RDF2Go, RDFReactor and jREST into a handy package.


Last Release (Thursday, 28 June 2007)
SemWiki
This project is dead.


OntoWare-Server
The server project realising OntoWare.org as collaborative project management environment for the Semantic Web.


sirdf
Simplified RDF API (SiRDF) allows users to work on a simpler, but equivalent data model. This will bring RDF to the masses.


Semantic MediaWiki Tools
SemanticMediaWiki API. The Semantic MediaWiki (http://meta.wikimedia.org/wiki/Semantic_MediaWiki)


Last Release (Friday, 3 March 2006)
Semantic Web and Peer to Peer simulation
This project is about a simulation environment for a semantics based peer to peer network.


Last Release (Tuesday, 12 July 2005)
SWIFT
Semantic Wiki Interchange FormaT (SWIFT). RDF Schema for full export/import of Wiki content. Currently maps SnipSnap, MediaWiki and JSPWiki.


SWRC Ontology

The SWRC (Semantic Web for Research Communities) is an ontology for modeling entities of research communities such as persons, organisations, publications (bibliographic metadata) and their relationships. It is used in numerous applications and projects including the AIFB portal, Bibster and the SemIPort project.

More details about the modeling of the SWRC ontology can be found in:
York Sure, Stephan Bloehdorn, Peter Haase, Jens Hartmann, Daniel Oberle. The SWRC Ontology - Semantic Web for Research Communities. In Proceedings of the 12th Portuguese Conference on Artificial Intelligence (EPIA 2005). Springer, Covilha, Portugal, December 2005.

Further Details

Last Release (Friday, 29 June 2007)
Feature and Similarity Framework
A framework for feature extraction, preprocessing, similarity metrics and more...


TARTAR
TARTAR - Transforming ARbitrary TAbles into fRames

Efficient automatic information handling has become increasingly important in information society. Most information on the Web is presented in the form of semi-structured or unstructured documents, encoded as a mixture of loosely structured natural language text and template units. The lack of metadata, which would precisely annotate the structure and semantics of documents, and ambiguity of natural language makes automatic computer processing very complex. The Semantic Web aims to overcome this bottleneck.

The contribution of this software package presents a novel method for automatic generation of knowledge models such as ontologies from arbitrary tabular structures found on the Web. The method is based on a grounded cognitive table model introduced by Hurst. The methodology is stepwise instantiated in four steps. In the first step, a table is transformed into regular matrix form. In the following two steps the table is handled from a structural and functional, and in the last step from a semantic point of view. The outcome of the method is threefold: a knowledge frame, an ontology, and a knowledge base, all encoded in an F-Logic representation language. A system is implemented in Java language, and consists of approximately 15.000 lines of code. In order to fully exploit (i.e. for query answering) the outcomes produced by the system, one can use an inference engine that supports F-Logic, like OntoBroker.


Text2Onto

Text2Onto is the official successor of TextToOnto, a framework for ontology learning from text.

Publication: Philipp Cimiano, Johanna Völker. Text2Onto - A Framework for Ontology Learning and Data-driven Change Discovery. In Andres Montoyo, Rafael Munoz, Elisabeth Metais, Proceedings of the 10th International Conference on Applications of Natural Language to Information Systems (NLDB), volume 3513 of Lecture Notes in Computer Science, pp. 227-238. Springer, Alicante, Spain, June 2005.

In addition to the standalone version of Text2Onto's graphical user interface, an Eclipse plugin has been published lately, which enables a tighter integration of Text2Onto with the editing and maintenance facilities of the NeOn Toolkit ontology engineering environment.

Last Release (Monday, 13 July 2009)
Parser Lernen
Studienarbeit: Learning parsers from examples. Goal: parse wiki syntax of any kind and simple text file formats. Try it via Web Start (http://text2structure.ontoware.org/VisParGen.jnlp)!


Last Release (Thursday, 12 January 2006)
tiger214
Tiger214 is a small tool to convert Java Tiger (1.5.x) source code to Java 1.4 source code - hence the name 'tiger 2 14'. It exploits a feature of the 1.5-compiler to compile into source code and converts 1.5-generic into the correct 1.4-syntax. After this, some rexexps fine-tune the code to handle autoboxing for-each-loops are not handled at all. Note: you can contribute to the code in a wiki-like manner. Goto to the CVS with username 'wikidev' and pass 'wikidev'. You have full write-rights. You can also check your emails at wikideveloper@gmail.com with the pass 'wikidev123'. This is an experiment :-)


UIMA for Semantic Search
IBM's Unstructured Information Management Architecture (UIMA) provides structured and typed annotation facilities for documents. We will integrate the output of a UIMA annotations in a semantic search and information extraction system.


Last Release (Thursday, 15 March 2007)
OntoWare-Utils
OntoWare utils project.


Last Release (Monday, 12 July 2004)
Wiki Interchange Format
*** WE MOVED to http://semanticweb.org/wiki/STIF *** Data exchange between wikis was always a problem. Now, with the Wiki Interchange Format (WIF), page migration is possible. This project aims to provide a server, capable of logging in to two wikis and exporting wiki A into WIF, and then importing WIF into wiki B.


WikiAnnotator
Semantic Annotation of Mediawiki pages with UIMA


XXploreKnow!
It supports exploration, seach and analysis of semantic data. Data are elements of RDF/OWL ontologies, which are manually added to the system using an annotation tool or extracted from documents and web pages. For search, a combination of semantic search and classical index-based search is also supported.

This work was co-funded by the X-Media project (www.x-media-project.org) sponsored by the European Commission as part of the Information Society Technologies (IST) program under EC grant number IST-FP6- 026978.


Last Release (Tuesday, 21 October 2008)
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