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A New Recommender System for 3D E-Commerce: An EEG Based Approach

Guibing Guo 1and Mohamed Elgendi 2
1. Nanyang Technological University, Singapore, Singapore
2. University of Alberta, Alberta, Canada

Abstract—This position paper discusses a novel recommender system for e-commerce in virtual reality environments. The system provides recommendations by taking into account prepurchase ratings in addition to traditional postpurchase ratings. Users’ positive emotions are captured in the form of electroencephalogram (EEG) signals while interacting with 3D virtual products prior to purchase. The prepurchase ratings are calculated from the averaged relative power of the collected EEG signals. Prepurchase ratings are complementary to postpurchase ratings and help in alleviating two severe issues that traditional recommender systems suffer from: data sparsity and cold start. By making proper use of both pre- and postpurchase ratings, user preference can be modeled more accurately. This will improve the effectiveness of the current recommender systems and may change the traditional e-business applications.

Index Terms—prepurchase ratings, recommender system, virtual reality, data sparsity, cold start, EEG signals, real-time EEG analysis.

Cite:Guibing Guo and Mohamed Elgendi, "A New Recommender System for 3D E-Commerce: An EEG Based Approach," Journal of Advanced  Management Science, Vol. 1, No. 1, pp. 61-65, March 2013. doi: 10.12720/joams.1.1.61-65 
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