A new UNL Explorer has been developed and is provided at www.undl.org/unlexp/ and www.unl.undl.org/unlexp/ by the UNL Center.

The UNL Explorer is a UNL-based Multilingual Intelligent Information and Knowledge Management System.

The UNL Explorer provides users with an integrated environment that users can search for and edit knowledge and information based on UNL.

Using the UNL Explorer, search for information of UNL Encyclopedia can be made by content, keyword or keyconcept search, or though navigation of the UW System of the UNL Ontology

The UNL Explorer has the following characteristics:

Semantic Co-occurrence Relation Search

whether a relation between two UWs is true or not, what UWs can have a relation with another UW, or what relations are possible between two UWs can be verified based on the UNL Ontology.

UNL-based Semantic Network Search

Content search is carried out based on UNL Expressions.

Intensional Definition-based Inference

every UW is given an intentional definition to specify its all the essential properties. the definition is used in inference about all concepts it related.

Multilingual Information Processability

the UNL Explorer allows users to search for information described in whatever language using their native languages, or to provide or edit information using their native languages.

UNL Graphical Editability

A graphical editor of UNL Expressions works together with the UNL Explorer.

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UNL Projects


multi-lingualization of EOLSS using UNL

The UNL-EOLSS Project was an attempt to make the EOLSS available in multiple languages during 2007 and 2008. It started with the six official languages of the UN and Japanese. Language centers that are responsible for the languages participated in the project. Through this project, 25 academic articles were selected from the EOLSS, enconverted into UNL, and are available to view in other languages through the UNL Explorer.

More information on the project is available at http://www.undl.org/unl-eolss/.
UNL Documents of these articles are available at http://www.undl.org/unl-eolss/unldoc.html.

The UNL Explorer can be used at www.undl.org/unlexp/. To view these articles are possible by title, keyword or content search, or through navigation of the UNL Ontology.

Related Activities

Common Web Language (CWL)

The CWL (Common Web Language) is a common language for exchanging information through the web and also for enabling computers to process information semantically. It is used to describe the semantic structures of contents and meta-data of web pages written in natural languages. The purpose of the CWL is to realize a language barrier free world in the web and enable computers to extract semantic information and knowledge from web pages accurately.

The activity to develop the CWL started as a mission of the Common Web Language Incubator Group of the W3C. A large number of researches from universities and research institutes are engaging in the research and development of the CWL.

For more information see http://www.w3.org/2005/Incubator/cwl/

Semantic Computing (SeC) and Concept Description Language (CDL)

Semantic Computing aims at an intelligent and creative infrastructure in computers. The CDL (Concept Description Language) is a language to describe various semantic relations between various kinds of media and contents, and conceptual structures of contents for realizing the infrastructure. A large number of researches from universities and research institutes are engaging in the research and development of the CDL under the organization of the Institute of Semantic Computing.

For more information see http://www.instsec.org/