Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций
Конференция: XX International Conference "Data Analytics and Management in Data Intensive Domains"; Moscow; Moscow
Год издания: 2018
Ключевые слова: case-based reasoning, ontology, Principal Component analysis, polychoric correlation
Аннотация: In present paper we propose an original approach to the indexing of cases by ontology concepts, as a result of which the special semantic data matrix is generated. The elements of this matrix are semantic links between cases and terminal concepts of the ontology. This matrix contains knowledge about the most stable, non-trivial relПоказать полностьюationships between the ontology concepts that determine the most frequently used cases. To identify these groups of concepts we propose and approve an approach based on modification of the principal component analysis with use of combination of polychoric correlations and correlation ratio. Interpretation of the loadings matrix on the principal components allows us to identify groups of interrelated concepts from different hierarchical branches of the ontology. Thus, problems that are at the junction of different concepts can be identified. The proposed method is implemented in the knowledge management system for IT support service.
Журнал: DATA ANALYTICS AND MANAGEMENT IN DATA INTENSIVE DOMAINS
Номера страниц: 80-87
Издатель: FRC CSC RAS