We believe that the enterprise ontology will become a cornerstone in many information systems in the future. In general terms, an ontology is an organization of a body of knowledge or, at least, an organization of a set of terms related to a body of know
* Development of methods, tools and applications for adaptive Knowledge Engineering in the context of the Semantic Web * Research of underlying Semantic Web technologies and development of fundamental Semantic Web tools and applications * Maturation of strategies for fruitfully combining the Social Web paradigms with semantic knowledge representation techniques
Ontologies tend to be found everywhere. They are viewed as the silver bullet for many applications, such as database integration, peer-to-peer systems, e-commerce, semantic web services, or social networks. However, in open or evolving systems, such as the semantic web, different parties would, in
OWL reasoner engines can contribute with the semantic enrichment over ontologies. The manner in which this knowledge is represented in OWL has been an obstacle to incorporate this semantic features in the object-oriented paradigms. JASB architecture pretends to be a bridge for joining this two different worlds. This platform offers a connection point in which the object instances of the object-oriented programming could have semantic features provides by mean of the reasoning processes available in OWL arena.
The architecture is composed by two clearly differenciated tools, each one is focussing on different objective.
In the logical sequence of a software development, the first tool covers the statical aspect of the inclusion of semantic features into object-oriented application. Thus, in the following picture can be seen the architecture for thisthe first tool, the JASB compiler.
Category search within digital repositories is poorly supported. This means that people wishing to access the assets of digital repositories are largely limited to keyword search, which means they must know what they want in order to look for it. Our part
The Research Group Agile Knowledge Engineering and Semantic Web (AKSW) is hosted by the Department for Business-oriented Information Systems (BIS) of the Institute of Computer Science (IfI) / University of Leipzig.
ThManager is an Open Source Tool for creating and visualizing SKOS RDF vocabularies, a W3C initiative for the representation of knowledge organization systems such as thesauri, classification schemes, subject heading lists, taxonomies, and other types of controlled vocabulary. ThManager facilitates the management of thesauri and other types of controlled vocabularies, such as taxonomies or classification schemes. The tool has been implemented in Java and has the following features:
Multi-platform (Windows, Unix). As it has been developed in Java and the storage of metadata records is managed directly through the file system, the application can be deployed in any platform with the minimum requirement of having installed a Java virtual machine.
Multilingual. The application has been developed following the Java internationalization methodology. Nowadays, there are Spanish and English versions. With little effort, other languages could be supported.
Selection and filtering of the thesauri stored in the local repository.
Description of thesauri by means of metadata in compliance with a Dublin Core based application profile for thesaurus (See application profile) . These metadata can be either visualized in HTML or edited through a form.
Visualization of thesaurus concepts. The visualization interface includes the following widgets:
Alphabetic viewer: It provides the list of thesaurus concepts alphabetically ordered in the selected language.
Hierarchical viewer: It provides a tree showing the hierarchical structure of thesaurus concepts.
Concept viewer: For a selected concept it shows all the properties allowing additionally the navigation to the related concepts by means of hyperlinks.
Search tool: It facilitates search of concepts. The searching process is based on preferred labels allowing the following criteria: "equals", "starts with" and "contains".
Edition of thesaurus content. The tool provides an edition interface to modify the content of a thesaurus: creation of concepts, deletion of concepts, and update of concept properties.
Exchange of thesauri according to SKOS format. The export operation includes the export of thesaurus metadata.
Extraction of related concepts in WordNet. It generates an automatic mapping of thesaurus concepts against the concepts of Wordnet lexical database.
On-line help by means of PDF visualization.
ConceptNet is a freely available commonsense knowledgebase and natural-language-processing toolkit which supports many practical textual-reasoning tasks over real-world documents right out-of-the-box.
A website using the CRM CIDOC Ontology adapted to West African Small Scale Fisheries. Semantic Mediawiki - CIDOC CRM Model - Simile Exhibit used - Ask fot password !
Wandora is a general purpose knowledge extraction, management, and publishing application based on Topic Maps and Java. More precisely Wandora is an open source desktop application to build and manage topic maps. Wandora has graphical user interface, layered presentation of knowledge, several data storage options, rich data extraction, import and export capabilities, and open plug-in architecture. Wandora's license is GNU GPL. Wandora suits well for knowledge mashups. Wandora is capable to extract and convert various open data feeds to Topic Maps format (see image below). Beyond Topic Maps conversion this feature allows Wandora user to aggregate multidimensional knowledge bases where information from Flickr meets Geonames and Delicious, for example. Read more at documentation.
Global *S*emantic *C*ategory, *O*ntology, *T*ag and *T*axonomy S*y*stem, adding OWL based services as well as simple categories, tags and tagclouds. Relations are made using real SQL relations, that can be exported later on to OWL and other standards. This will enable exchange of semantic information between different systems.
ConceptNet is a freely available commonsense knowledgebase and natural-language-processing toolkit which supports many practical textual-reasoning tasks over real-world documents right out-of-the-box (without additional statistical training) including
P. Kolyvakis, A. Kalousis, и D. Kiritsis. Proceedings of the 2018 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, Volume 1 (Long Papers), стр. 787--798. New Orleans, Louisiana, Association for Computational Linguistics, (июня 2018)