Challenge: Existing methods to generate opinion summarization without supervised training data are limited due to the lack of additional sources.
Approach: They propose a synthetic dataset creation strategy that leverages reviews and additional sources to generate a pseudo-summary.
Outcome: The proposed approach achieves 14.5% improvement in ROUGE-1 F1 over existing models.

Similar Papers

Synthesize, if you do not have: Effective Synthetic Dataset Creation Strategies for Self-Supervised Opinion Summarization in E-commerce (2023.findings-emnlp)

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Challenge: Existing approaches to generate general and aspect-specific opinion summarization are limited due to their reliance on human-specified aspects and seed words.
Approach: They propose synthetic dataset creation approaches for general and aspect-specific opinion summarization . general opinion summaries struggle to generate faithful to the input reviews, they say . aspect- specific opinion summarisation models are limited due to reliance on human-specified aspects .
Outcome: The proposed approach outperforms existing models on three e-commerce test sets on general and aspect-specific opinion summarization.
Unsupervised Opinion Summarization as Copycat-Review Generation (2020.acl-main)

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Challenge: Recent work on opinion summarization has focused on extracting fragments from reviews, but we use novel sentences to generate abstractive summaries.
Approach: They propose an abstractive summarizer which does not use summaries in training and is trained end-to-end on a large collection of reviews.
Outcome: The proposed model produces fluent and coherent summaries reflecting consensus opinions on Amazon and Yelp reviews.
Few-Shot Learning for Opinion Summarization (2020.emnlp-main)

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Challenge: a recent study shows that abstractive summarization models fail to capture their essential properties due to the high cost of summary production.
Approach: They propose a few-shot framework for abstractive opinion summarization that bootstraps the output of an unsupervised model.
Outcome: The proposed framework outperforms extractive and abstractive methods on Amazon and Yelp datasets.
Self-Supervised Multimodal Opinion Summarization (2021.acl-long)

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Challenge: Existing methods for opinion summarization use text data, but non-text data are less abundant.
Approach: They propose a self-supervised opinion summarization framework that uses non-text data to generate a summary from multiple reviews.
Outcome: The proposed framework is superior to existing methods on Yelp and Amazon datasets.
Summarizing Opinions: Aspect Extraction Meets Sentiment Prediction and They Are Both Weakly Supervised (D18-1)

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Challenge: Existing methods for opinion summarization are knowledge-lean and require light supervision.
Approach: They propose a neural framework for opinion summarization from online product reviews which is knowledge-lean and only requires light supervision.
Outcome: The proposed framework improves over baselines and shows that opinion summaries are preferred by human judges according to multiple criteria.
Learning Opinion Summarizers by Selecting Informative Reviews (2021.emnlp-main)

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Challenge: supervised summarization has been traditionally approached with unsupervised, weakly-supervised and few-shot learning techniques.
Approach: They propose to combine a large dataset of opinion summaries with user reviews to form a supervised summarizer.
Outcome: The proposed method improves the quality of summarization and reduces hallucinations in the summarizer.
Opinion Summarization by Weak-Supervision from Mix-structured Data (2022.emnlp-main)

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Challenge: Existing methods for opinion summarization of multiple reviews lack reference summaries . OAs and ISs are often mismatched between review input and summary .
Approach: They propose a method to generate mixed-structured synthetic training data for opinion summarization.
Outcome: The proposed method outperforms existing methods on Yelp, Amazon and RottenTomatos datasets.
Informative and Controllable Opinion Summarization (2021.eacl-main)

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Challenge: Existing methods for opinion summarization use a two-stage extractive and abstractive approach to generate summaries for reviews of a specific target.
Approach: They propose a framework for opinion summarization that condenses all input reviews into multiple dense vectors which serve as input to an abstractive model.
Outcome: The proposed framework produces more informative summaries and allows to take user preferences into account using a zero-shot customization technique.
Unsupervised Opinion Summarization with Noising and Denoising (2020.acl-main)

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Challenge: Existing methods for abstractive summarization are limited and cannot be easily sourced.
Approach: They propose a supervised learning model which learns to denoise the input and generate original reviews.
Outcome: The proposed model improves on the baselines of abstractive and extractive models on a large dataset with only a few reviews and no ground truth summaries.
OpinionDigest: A Simple Framework for Opinion Summarization (2020.acl-main)

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Challenge: Abstractive opinion summarization framework outperforms competitors' summarizing frameworks . extractive approaches produce well-formed text, but selecting the most popular opinions is challenging .
Approach: They propose an abstractive opinion summarization framework that trains a Transformer model to reconstruct reviews from extracted opinions.
Outcome: The proposed framework outperforms baselines on Yelp and shows promising customization capabilities.

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