KOSO Knowledge Organization Systems Ontology


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Poster presented at European Semantic Web Conference 2008 (ESWC 2008), Tenerife, Spain.

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KOSO Knowledge Organization Systems Ontology

  1. 1. KOSO – A Metadata Ontology for Knowledge Organization Systems Katrin Weller, M.A. Heinrich-Heine-University Düsseldorf, Germany Institute for Language and Information Department of Information Science weller@uni-duesseldorf.de Fact 1: Fact 2: Fact 3: Hypothesis: Approach: Plenty of different knowledge Access to existing KOS No shared definitions, New meta-level of Metadata ontology for organization systems (KOS) is needed to enable classifications and ontology engineering the classification and are available as domain reuse and exchange. descriptions of is needed for reuse, detailed description of representations and indexing different KOS types recombination and existing KOS and vocabularies – and their are in use. interactions. their interactions. number is still growing. Aim Implementation KOSO (Knowlede Organization Systems Ontology) wants to support • KOSO has been implemented in OWL-DL. knowledge exchange and reuse of existing KOS by • Key concept is KnowledgeOrganizationSystem. Six main modules are providing a set of descriptive metadata. build around it to describe KOS. defining and classifying different types of KOS. • Additional datatype properties, e.g. has_release_date, has_number_of_relations, provides_usage_guidelines. specifying modes of KOS interactions. Basic Structure of the Ontology Details Defining different KOS types Knowledge Relation Language Ontology • Explicitly specified semantic relations. Syntagmatic Relation Natural Language • Formal representation language (for automatic reasoning). Co-Occurence English Paradigmatic Relation German • Distinguishing concepts and individuals. Hierarchy Representation Language • Example: Cyc Equivalence XML Association OWL Thesaurus • Focus on elaborated vocabulary control: meronymy, Domain hyponymy, equivalences and unspecific associative Specific Domain relations. Art uses Economics • Example: Medical Subject Headings (MeSH) available_in_language Geography Science Classification • Mainly hierarchical structure, equivalence relations. Biology • Subtypes, e.g. decimal classification, faceted classification. Knowledge Organization has_domain Medicine Universal Domain • Uses notations. System • Example: International Patent Classification (IPC) Ontology Nomenclature • Controlled keyword indexing with focus on equivalence Thesaurus relations (synonyms), additional associations possible. Classification • Example: CAS Registry File Nomenclature Document Folksonomy • No concept interrelations. • Developed by community, bound to platform. used_to_index Publication Folksonomy Artwork • Subtypes: broad and narrow folksonomy. developed_by used_in_platform Event • Examples: Flickr Folksonomy, Del.icio.us Folksonomy. People Computational Object Audio File Program The types of semantic relations within a KOS are one key factor to Developer Platform Biological Object determine the semantic complexity. Gene Single Person Document Collection Research Group Museum Institution Library Company Online Platform Community Publication Database contains_document Properties to specify interactions of different KOS Social Software Versioning Interlinking different (release) versions: has_version, is_prior_version_of, is_later_version_of, developed_by is_language_version_of. Modularization KOS and components: consists_of_module, Example: is_component_of. International Patent Classificaton (IPC) Example: Gene Ontology consists of three modules Biological is_a Classification Process, Cellular Component and Molecular Function. (is_a KnowledgeOrganisationSystem) Resources and Reuse of existing resources: is_resource_for and reuses. has_version: IPC2006, … Reuse May be specified to complete and partly reuse. available_in_language: English, French Example: SmartSUMO ontology reuses DOLCE and SUMO. uses_notations = true Cross- Established cross-references between concepts of two is_developed_by: references different KOS: has_concordances_to. WorldIntellectualPropertyOrganization Example: Standard Thesaurus Wirtschaft has_number_of_concepts: 50,000-100,000 has_concordances_to NACE. uses_relation: Hierarchy Multi- Independent KOS within the same platform, may represent has_domain: IntellectualProperty representation different points of view: used_in_combination_with. is_used_to_index: InternationalPatents Discussion Future Work Discussions with an interested community should particularly focus on: Future work will comprise: • Accurate definition of ontologies and types of ontologies. • Broadening the concept of KnowledgeOrganizationSystem to • Classification of application fields for ontologies. KnowledgeResource to include EncyclopedicResources • Additional types of KOS interactions. (glossaries, wikis etc.) and LinguisticResources (linguistic • The role of relations for emergent semantics. thesauri, dictionaries). Specific properties will have to be defined. • Interrelations with other approaches to establish ontology metadata. • Inclusion of new modules for engineering methodologies and tools. • Inclusion of standards and norms. • Complementary platform for documenting and retrieving KOS. References [1] Hartmann, J., Palma, R., et al.: Ontology Metadata Vocabulary and Applications. In: International Conference on Ontologies, Databases and Applications of Semantics. Workshop on Web Semantics (SWWS), pp. 906--915. Springer (2005) [2] Hartmann, J.: ONTHOLOGY. An Ontology Metadata Repository. In: Demo and Poster Proceedings of ESWC 2006 (2006) [3] Suarez-Figueroa, M. C., García-Castro, R., Gómez-Pérez, A., Palma, R., Nixon, L. J. B., Paslaru, E., Hartmann, J., & Jarrar, M.: Identification of Standards on Metadata for Ontologies. KWeb Deliverable D1.3.2 (2005) [4] Arpirez, J. C., Gómez-Pérez, A., Lozano-Tello, A., Pinto, H. S.: Reference Ontology and (ONTO)2 Agent: The Ontology Yellow Pages. Knowledge and Information Systems, 2(4), 387--412 (2000) [5] Zeng, M.L.: Taxonomy of knowledge organization sources / systems. Online: http://nkos.slis.kent.edu/KOS_taxonomy.htm [January 10, 2008] (2000). -- An extended description of this poster has been prepared for the 1st International Workshop on Knowledge Reuse and Reengineering over the Semantic Web (KRRSW 2008) hosted at ESWC 2008.