25/07/2020

Joint training capsule network for cold start recommendation

Tingting Liang, Congying Xia, Yuyu Yin, Philip S. Yu

Keywords: recommender systems, cold start, user preference estimation

Abstract Paper Similar Papers

Abstract: This paper proposes a novel neural network, joint training capsule network (JTCN), for the cold start recommendation task. We propose to mimic the high-level user preference other than the raw interaction history based on the side information for the fresh users. Specifically, an attentive capsule layer is proposed to aggregate high-level user preference from the low-level interaction history via a dynamic routing-by-agreement mechanism. Moreover, JTCN jointly trains the loss for mimicking the user preference and the softmax loss for the recommendation together in an end-to-end manner. Experiments on two publicly available datasets demonstrate the effectiveness of the proposed model. JTCN improves other state-of-the-art methods at least 7.07

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