Design and application of a multi-variant expert system using Apache Hadoop framework

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Abstract

Movie recommender expert systems are valuable tools to provide recommendation services to users. However, the existingmovie recommenders are technically lacking in two areas: first, the available movie recommender systems give general recommendations; secondly, existing recommender systems use either quantitative (likes, ratings, etc.) or qualitative data (polarity score, sentiment score, etc.) for achieving the movie recommendations. A novel approach is presented in this paper that not only provides topic-based (fiction, comedy, horror, etc.) movie recommendation but also uses both quantitative and qualitative data to achieve a true and relevant recommendation of a movie relevant to a topic. The used approach relies on SentiwordNet and tf-idf similarity measures to calculate the polarity score from user reviews, which represent the qualitative aspect of likeness of a movie. Similarly, three quantitative variables (such as likes, ratings, and votes) are used to get final a recommendation score. A fuzzy logic module decides the recommendation category based on this final recommendation score. The proposed approach uses a big data technology, "Hadoop" to handle data diversity and heterogeneity in an efficient manner. An Android application collaborates with a web-bot to use recommendation services and show topic-based recommendation to users.

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APA

Ibrahim, M., & Bajwa, I. S. (2018). Design and application of a multi-variant expert system using Apache Hadoop framework. Sustainability (Switzerland), 10(11). https://doi.org/10.3390/su10114280

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