Attentive Graph-based Text-aware Preference Modeling for Top-N Recommendation
This work addresses top-N recommendation for users in scenarios where user reviews are unavailable, offering an incremental improvement by integrating text and graph methods.
The paper tackled the problem of top-N recommendation by modeling both item textual content and high-order connectivity in user-item graphs, proposing AGTM which achieved state-of-the-art performance with concrete improvements over baselines.
Textual data are commonly used as auxiliary information for modeling user preference nowadays. While many prior works utilize user reviews for rating prediction, few focus on top-N recommendation, and even few try to incorporate item textual contents such as title and description. Though delivering promising performance for rating prediction, we empirically find that many review-based models cannot perform comparably well on top-N recommendation. Also, user reviews are not available in some recommendation scenarios, while item textual contents are more prevalent. On the other hand, recent graph convolutional network (GCN) based models demonstrate state-of-the-art performance for top-N recommendation. Thus, in this work, we aim to further improve top-N recommendation by effectively modeling both item textual content and high-order connectivity in user-item graph. We propose a new model named Attentive Graph-based Text-aware Recommendation Model (AGTM). Extensive experiments are provided to justify the rationality and effectiveness of our model design.