Open AccessVulcont: A recommender system based on context history ontology
Author(s) -
Cardoso Ismael M. G.,
Barbosa Jorge L. V.,
Alves Bruno M.,
Dias Lucas P. S.,
Nesi Luan C.
Publication year - 2022
Publication title -
iet software
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.305
H-Index - 43
eISSN - 1751-8814
pISSN - 1751-8806
DOI - 10.1049/sfw2.12034
Subject(s) - ontology , context (archaeology) , computer science , recommender system , information retrieval , similarity (geometry) , context model , semantic similarity , collaborative filtering , semantics (computer science) , data science , world wide web , artificial intelligence , object (grammar) , paleontology , philosophy , epistemology , image (mathematics) , biology , programming language
The usage of recommenders systems is already widespread. Every day people are exposed to different item offerings based on the prediction of their interests and decisions. Context information, such as location, goals, and close entities, plays a key role in the recommendations' accuracy. The use of context histories allows one to identify similar context histories and predict contexts. This article proposes Vulcont, a recommender system based on a context histories' ontology. Vulcont merges the benefits of ontology reasoning with context histories to measure the context history similarity, based on the semantic and ontology properties provided by the context’s domain. Vulcont considers synonymous and classes' relations to measure similarity. After that, a collaborative filtering approach identifies sequences' frequency to identify potential items for recommendation. The proposed recommendation is evaluated and discussed in four scenarios in an offline experiment, which explores the semantic value of context histories. The main contribution of Vulcont is the use of semantic relations and the properties of ontology in a similarity measurement of context histories, which is a data structure more complete than that of single contexts.