A research paper recommender system using a dynamic normalized tree of concepts model for user modelling

Modhi Al Alshaikh, Gulden Uchyigit, Roger Evans

Research output: Chapter in Book/Conference proceeding with ISSN or ISBNConference contribution with ISSN or ISBN

Abstract

The enormous growth of information on the Internet makes finding information challenging and time consuming. Recommender systems provide a solution to this problem by automatically capturing user interests and recommending related information the user may also find interesting. In this paper, we present a novel recommender system for the research paper domain using a Dynamic Normalized Tree of Concepts (DNTC) model. Our system improves existing vector and tree of concepts models to be adaptable with a complex ontology and a large number of papers. The proposed system uses the 2012 version of the ACM Computing Classification System (CCS) ontology. This ontology has a much deeper structure than previous versions, which makes it challenging for previous ontology-based approaches to recommender systems. We performed offline evaluations using papers provided by ACM digital library for classifier training, and papers provided by CiteSeerX digital library for measuring the performance of the proposed DNTC model. Our evaluation results show that the novel DNTC model significantly outperforms the other two models: non-normalized tree of concepts and the vector of concepts models. Further, our DNTC model provides high average precision and reliable results when used in a context which the user has multiple interests and reads a large quantity of papers over time.
Original languageEnglish
Title of host publicationRCIS 2017: IEEE 11th International Conference on Research Challenges in Information Science
Place of PublicationBrighton
PublisherIEEE
Pages0-0
Number of pages1
ISBN (Print)9781509054763
Publication statusPublished - 10 May 2017
EventRCIS 2017: IEEE 11th International Conference on Research Challenges in Information Science - Brighton, 10-12 May 2017
Duration: 10 May 2017 → …

Conference

ConferenceRCIS 2017: IEEE 11th International Conference on Research Challenges in Information Science
Period10/05/17 → …

Bibliographical note

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    Al Alshaikh, M., Uchyigit, G., & Evans, R. (2017). A research paper recommender system using a dynamic normalized tree of concepts model for user modelling. In RCIS 2017: IEEE 11th International Conference on Research Challenges in Information Science (pp. 0-0). IEEE.