Extracting Entities of Interest from Comparative Product Reviews

This paper presents a deep learning based approach to extract product comparison information out of user reviews on various e-commerce websites. Any comparative product review has three major entities of information: the names of the products being compared, the user opinion (predicate) and the feature or aspect under comparison. All these informing entities are dependent on each other and bound by the rules of the language, in the review. We observe that their inter-dependencies can be captured well using LSTMs. We evaluate our system on existing manually labeled datasets and observe out-performance over the existing Semantic Role Labeling (SRL) framework popular for this task.

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Results from the Paper


 Ranked #1 on Predicate Detection on Product Reviews 2017 (using extra training data)

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Task Dataset Model Metric Name Metric Value Global Rank Uses Extra
Training Data
Result Benchmark
Predicate Detection Product Reviews 2017 Bidirectional-LSTM F1 score 50.4 # 1
Predicate Detection Product Reviews 2017 Semantic Role Labeling (SRL) F1 score 6.5 # 2

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