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Abstract

The object of this literature review is to provide a historical perspective of R and D work in the area of Knowledge Organization (KO). This overview/summarization will provide information on major areas of KO. Journal articles published in core areas of KO: (Classification, Indexing, Thesauri and Taxonomies, Internet and Subject approach to information in the electronic era and Ontologies will be predominantly covered in this literature review. Coverage in this overview may not be completely exhaustive, but it succinctly showcases major developments in the area of KO. This review is a good source of additional reading material on KO apart from prescribed reading material on KO

Date

22. 6.2015 16:13:38

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Abstract

Conceptualization is at the core of developing domain ontologies. This paper reports a study for developing an ontology for a micro-domain - Test Blanket Module (TBM), an integral part of thermonuclear or fusion reactors. Sample data downloaded from yielded 1115 unique DEI (indexer-assigned) descriptors assigned to 548 records on TBM. The frequencies of occurrence of all the unique descriptors, the corresponding co-word DEI descriptors (AN numbers) were identified On the basis of their research linkages the descriptors were grouped into four quadrants. It was found, that the descriptors in the 2nd and 3rd quadrants were at the core of the selected subject. A total of 31 core descriptors from these were selected for conceptualization and for each the co-occurring descriptors and their frequencies of co-occurrence with the selected descriptor were noted. Only descriptor pairs that co-occurred 10 times or higher were considered. Comparison of Co-Word Word Blocks (CWWBs) and word blocks (INISWB) from the INIS thesaurus showed differences. Co-words were used to semantically enrich descriptors transforming them into more comprehensive concepts; these were used as building blocks for conceptualization and for domain ontology. This method could be replicated to generate semantic networks (which could form an Ontological layer on any subject of study) and also in query expansion during search and retrieval in interdisciplinary subject domains.

Source

Categories, contexts and relations in knowledge organization: Proceedings of the Twelfth International ISKO Conference 6-9 August 2012, Mysore, India. Eds.: Neelameghan, A. u. K.S. Raghavan

Type

a