Unsupervised Extractive Opinion Summarization Using Sparse Coding
Somnath Basu Roy Chowdhury, Chao Zhao, Snigdha Chaturvedi
Abstract
Opinion summarization is the task of automatically generating summaries that encapsulate information expressed in multiple user reviews. We present Semantic Autoencoder (SemAE) to perform extractive opinion summarization in an unsupervised manner. SemAE uses dictionary learning to implicitly capture semantic information from the review text and learns a latent representation of each sentence over semantic units. Our extractive summarization algorithm leverages the representations to identify representative opinions among hundreds of reviews. SemAE is also able to perform controllable summarization to generate aspect-specific summaries using only a few samples. We report strong performance on SPACE and AMAZON datasets and perform experiments to investigate the functioning of our model.
BibTeX
@inproceedings{basu-roy-chowdhury-etal-2022-unsupervised,
title = "Unsupervised Extractive Opinion Summarization Using Sparse Coding",
author = "Basu Roy Chowdhury, Somnath and
Zhao, Chao and
Chaturvedi, Snigdha",
editor = "Muresan, Smaranda and
Nakov, Preslav and
Villavicencio, Aline",
booktitle = "Proceedings of the 60th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers)",
month = may,
year = "2022",
address = "Dublin, Ireland",
publisher = "Association for Computational Linguistics",
url = "https://aclanthology.org/2022.acl-long.86/",
doi = "10.18653/v1/2022.acl-long.86",
pages = "1209--1225"
}