Conference Papers

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    Ontologies to Model User Profiles in Personalized Job Recommendation
    (Institute of Electrical and Electronics Engineers Inc., 2019) Rimitha, S.R.; Abburu, V.; Kiranmai, A.; Chandrasekaran, K.
    Personalized recommendation aims to provide results that are likely to be of interest to a particular user. Personalized recommendation is useful in the domain of job search in order to provide individuals more personalized recommendations of job listings based on their preferences. User profiles a re thus constructed based on the individual users preferences. On the other hand, user profiles a re helpful in improving the recommendations. In general, user profiles are structured based on the individual's preferences. User profiles can be represented in various ways, one such way is ontology which is the systematic categorization and representation of relationships between various entities within a domain. Ontologies has been widely used in the domain of e-commerce and medicine. In this paper, we use ontologies in the domain of personalized job recommendation, to model user profiles. The major objective of this paper is to provide an ontology based user profile for the domain of job recommendation. In particular, we identified suitable classes, attributes and relations that are specific to job recommendation system. In addition, we presented OWL representation of the proposed ontological model such that it can be reused by domain experts. © 2018 IEEE.
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    DeCS: A Deep Neural Network Framework for Cold Start Problem in Recommender Systems
    (Institute of Electrical and Electronics Engineers Inc., 2022) Mondal, R.; Bhowmik, B.R.
    With the exponential growth of e-commerce platforms, recommendation systems are widely used in predicting user interests, improving user experience, and increasing the number of sales. However, recommendation performance degrades for users who have very little interaction or new users who have never opted for the service. Consequently, the recommender systems cannot suggest items and services to these users due to the cold start issue. Naturally, a compelling demand for an efficient recommender system is essentially needed to guide users toward items of their interests. This paper proposes a deep neural network (DNN) framework that addresses the cold start problem in recommendation systems. The proposed framework named 'DeCS' works primarily in stages that involve creating embeddings and vectors followed by training and prediction of three fundamental metrics-mean square error (MSE), mean absolute error (MAE), and root MSE (RMSE) by the framework. Several experiments evaluate the DeCS framework for different recommender metrics at various datasets. Predictions show that the proposed DeCS model achieves the MSE, RMSE, and MAE metrics in the range of 0.4338-1.2911, 0.6883-1.1362, and 0.4691-0.8745, respectively. Further, the result shows that the proposed approach improves these metrics by 15.81% compared to many state-of-the-art methods. © 2022 IEEE.