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In this paper, the conceptualization of the domain ontologies is presented by the upper levels of its taxonomies, a method and an algorithm intended for the generation of application ontologies of structural learning objects, that is, curriculum, syllabus, and lesson plan, are developed. Examples of curriculum and syllabus application ontologies are given.<\/p>","DOI":"10.4018\/jdet.2010100102","type":"journal-article","created":{"date-parts":[[2011,2,15]],"date-time":"2011-02-15T15:17:36Z","timestamp":1297783056000},"page":"12-28","source":"Crossref","is-referenced-by-count":3,"title":["Research and Conceptualization of Ontologies in Intelligent Learning Systems"],"prefix":"10.4018","volume":"8","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7791-4623","authenticated-orcid":true,"given":"Boryana","family":"Deliyska","sequence":"first","affiliation":[{"name":"University of Forestry, Bulgaria"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peter","family":"Manoilov","sequence":"additional","affiliation":[{"name":"Technical University, Bulgaria"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"2432","reference":[{"key":"jdet.2010100102-0","unstructured":"Advanced Distributed Learning Lab. (2006). Content Aggregation Model (3rd ed.). 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