Topic Map conversion of YSO

Revision as of 15:09, 15 August 2008

YSO is the Finnish General Upper Ontology based on the Finnish General Thesaurus maintained by The National Library of Finland. YSO contains ca. 20 000 concepts. The Finnish General Thesaurus was converted to YSO by Semantic Computing Research Group (SeCo) during FinnONTO project. SeCo also hosts YSO in their National Finnish Ontology Service ONKI. Detailed description of YSO is available at Tietolinja magazine 1/2007 (in Finnish).

Topic Map conversion of YSO is based on RDF dump kindly provided by the SeCo team. Topic Map YSO was created using Wandora's RDF import feature. Machine translated YSO was processed manually to fix topic names and associations. Topic Map conversion is not identical to RDF version. Differences are discussed below.

Download Topic Map conversion of YSO

Topic Map conversion of YSO is available as Wandora project file and XTM dump.

• Wandora project file (2.4 MB) is targeted to Wandora users.
• XTM dump (zipped 2.3 MB, uncompressed 58.8 MB) can be used in any XTM capable Topic Map application.

History

• 2008-08-14 Initial release.

Metrics

Metrics were measured from YSO layer of Wandora project file.

• Number of term topics: 20490
• Number of domain topics: 61

• Number of topics: 20747
• Number of associations: 103397
• Number of topic base names: 20738
• Number of subject identifiers: 39894
• Number of subject locators: 0
• Number of occurrences: 8439
• Number of distinct topic classes: 8
• Number of distinct types of associations: 7
• Number of distinct roles in associations: 10
• Number of distinct players in associations: 20708

• Average coefficient for layer YSO is 0.5076

Conversion details

Below is a screenshot of Wandora with Topic Map conversion of YSO. Wandora's topic panel has todellisuus topic (reality in Finnish) open. Topic has variant name in Swedish and English. Topic plays also a role in Associative Relation and Related-Term associations. Term's domain and superclass have also been specified with equivalent associations.

In general each YSO term topic is an instance of topic term (yso). YSO term has a base name of equivalent Finnish word and contains Finnish, Swedish, and English variant names. In some cases English variant is missing. Some terms also contain alternative labels as altLabel (yso) occurrences. Term may also contain short description as a comment (rdfs) occurrence.

Each term topic has two subject identifiers. First identifier refers to term's YSO id. Second refers to equivalent YSA id i.e. id of term in Finnish General Thesaurus. For example, previous screenshot had a topic with subject identifiers

 http://www.yso.fi/onto/ysa/Y5462
 http://www.yso.fi/onto/yso/p5016

Term topic may contain associations:

• Superclass-Subclass associations specify standard sub-superclass relations between terms.Root node of Superclass-Subclass associations is topic yso-käsitteet. Subclasses of root node are muuttuva, pysyvä, and abstrakti. Graph below views Superclass-Subclass associations of topic ilmiöt (phenomena in English). Dark blue arrows and texts were added in PhotoShop.

• Associative Relation associations specify a general relation between two terms. It looks like most Associative Relation associations has a symmetric duplicate where players have been switched. This duplicates the amount of Associative Relation associations.
• Broader-Narrower associations expresses the fact that a term is some way more general than another.
• Homonym associations link terms with identical names but different meaning. Identical base names merge in topic maps and base names contain additional number to distinguish different term topics. For example osakeyhtiöt has a homonym with base name osakeyhtiöt_2.
• Meronym associations specify part-whole relations between term topics.
• Related-Term associations specify a general relation between two terms. It looks like these associations are similar to Associative Relation associations. However, association groups are not identical and they have been left separate.
• Term-Domain associations specify terms domain. YSO contains 61 different domains. Domains are instances of domain (yso) topic.

Limitations

• Original YSO RDF(S) contains separate RDF resources for YSA terms and YSO concepts. These two resources have been merged in Topic Map conversion of YSO. YSO Topic Map contains single topic for one YSA term and YSO concept pair. As a consequence each term topic has two subject identifiers, one referring the term and one referring the concept.

License

Copyright (c) 2007-2008, FinnONTO Consortium
All rights reserved.

YSA contributed by The National Library of Finland, 2007.
TOPIC MAP CONVERSION OF YSO contributed by Wandora Team, 2008.

Redistribution and use of TOPIC MAP CONVERSION OF YSO in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

• Redistributions of TOPIC MAP CONVERSION OF YSO must retain the above copyright notice, this list of conditions and the following disclaimer.
• Neither the name of The National Library of Finland nor the names of any other contributors may be used to endorse or promote products derived from this ontology without specific prior written permission.

TOPIC MAP CONVERSION OF YSO IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF TOPIC MAP CONVERSION OF YSO, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.