Granular computing approach for the ordinal semantic weighted multiscale values for the attributes in formal concept analysis algorithm

Article type: Research Article

Authors: Ali, Imran^{a; c; *} | Li, Yongming^a | Pedrycz, Witold^b

Affiliations: [a] School of Computer Science, Shaanxi Normal University, Xi’an, China | [b] Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Canada | [c] Sukkur IBA University, Sindh, Pakistan

Correspondence: [*] Corresponding author. Imran Ali. E-mail: imran.bhatti@iba-suk.edu.pk.

Abstract:  In literature granular computing and formal concept analysis algorithm use only single-value attributes to knowledge discovery for the data of spatio-temporal aspects. However, most of the datasets like forest fires and tornado storms involve multiscale values for attributes. The limitation of single-value attributes of the existing approaches indicates only the data related to event occurrence which may be missing the elicitation of important knowledge related to severity of event occurrence. Motivated by these limitations, this research article proposes a novel and generalized method which uses ordinal semantic weighted multiscale values for attributes in formal concept analysis with granular computing measures especially when spatio-temporal attributes are not given. The originality of proposed methodology is using ordinal semantic weighted multiscale values for attributes that give complete information of event occurrences. Moreover, the use of ordinal semantic weighted multiscale values improves the results of granular computing measures. The significance of proposed approach is well explained by experimental evaluation performed on publicly available datasets on storm occurring in different States of America.

Keywords: Formal concept analysis, granular computing, granulation measures, ordinal semantic weighted multiscales

DOI: 10.3233/JIFS-223764

Journal: Journal of Intelligent & Fuzzy Systems, vol. 45, no. 1, pp. 1567-1586, 2023