Title: Information theoretic approach for cold start users with diversity improvement technique for semantic recommender system

Authors: Nidhi Kushwaha; O.P. Vyas

Addresses: Indian Institute of Information Technology, Allahabad, Allahabad 211012, U.P., India ' Indian Institute of Information Technology, Allahabad, Allahabad 211012, U.P., India

Abstract: This paper aims to use semantic database for recommendation purposes. It deals with two very specific problems of Recommendation System, namely Cold Start user and Diversity. We first describe cold start users and predict recommendation for them using information theory based methods. To introduce serendipitous results we also include aggregate diversity methods to the predicted ratings. Furthermore, we explain the results obtained from the rated items, and also increase the Intra List Diversity using a ranking-based approach that is different from the popularity-based approach employed in the past.

Keywords: information theory; intra list diversity; global diversity; popularity; cold start users; semantic recommender systems; semantic web; recommendation systems.

DOI: 10.1504/IJMSO.2015.074753

International Journal of Metadata, Semantics and Ontologies, 2015 Vol.10 No.4, pp.281 - 290

Received: 20 Jan 2015
Accepted: 28 Dec 2015

Published online: 15 Feb 2016 *

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