کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
387025 660895 2013 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Pessimists and optimists: Improving collaborative filtering through sentiment analysis
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر هوش مصنوعی
پیش نمایش صفحه اول مقاله
Pessimists and optimists: Improving collaborative filtering through sentiment analysis
چکیده انگلیسی


• We apply Sentiment Analysis in Recommender Systems by categorizing users according to the average polarity of their comments.
• We have generated a new corpus of opinions on movies obtained from the Internet Movie Database (IMDb).
• We improve Collaborative Filtering algorithms in rating prediction tasks.

This work presents a novel application of Sentiment Analysis in Recommender Systems by categorizing users according to the average polarity of their comments. These categories are used as attributes in Collaborative Filtering algorithms. To test this solution a new corpus of opinions on movies obtained from the Internet Movie Database (IMDb) has been generated, so both ratings and comments are available. The experiments stress the informative value of comments. By applying Sentiment Analysis approaches some Collaborative Filtering algorithms can be improved in rating prediction tasks. The results indicate that we obtain a more reliable prediction considering only the opinion text (RMSE of 1.868), than when apply similarities over the entire user community (RMSE of 2.134) and sentiment analysis can be advantageous to recommender systems.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Expert Systems with Applications - Volume 40, Issue 17, 1 December 2013, Pages 6758–6765
نویسندگان
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