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Synthesizing Aspect-Driven Recommendation Explanations from Reviews

2020-07-11International Joint Conference on Artificial Intelligence 2020Code Available1· sign in to hype

Trung-Hoang Le, Hady W. Lauw

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Abstract

Explanations help to make sense of recommendations, increasing the likelihood of adoption. However, existing approaches to explainable recommendations tend to rely on rigid, standardized templates, customized only via fill-in-the-blank aspect sentiments. For more flexible, literate, and varied explanations covering various aspects of interest, we synthesize an explanation by selecting snippets from reviews, while optimizing for representativeness and coherence. To fit target users’ aspect preferences, we contextualize the opinions based on a compatible explainable recommendation model. Experiments on datasets of several product categories showcase the efficacies of our method as compared to baselines based on templates, review summarization, selection, and text generation.

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