Automatic Product Ontology Extraction from Textual Reviews

• URL: http://arxiv.org/abs/2105.10966v1
• Date: Sun, 23 May 2021 16:06:38 GMT
• Title: Automatic Product Ontology Extraction from Textual Reviews
• Authors: Joel Oksanen, Oana Cocarascu, Francesca Toni
• Abstract summary: We show that the generated by our method outperform hand-crafted (NetWord) and extracted by existing methods (Text2Onto and COMET) in several, diverse settings. Our method is better able to determine recommended products based on their reviews, in alternative to using Amazon's standard score aggregations.
• Score: 12.235907063179278
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: Ontologies have proven beneficial in different settings that make use of textual reviews. However, manually constructing ontologies is a laborious and time-consuming process in need of automation. We propose a novel methodology for automatically extracting ontologies, in the form of meronomies, from product reviews, using a very limited amount of hand-annotated training data. We show that the ontologies generated by our method outperform hand-crafted ontologies (WordNet) and ontologies extracted by existing methods (Text2Onto and COMET) in several, diverse settings. Specifically, our generated ontologies outperform the others when evaluated by human annotators as well as on an existing Q&A dataset from Amazon. Moreover, our method is better able to generalise, in capturing knowledge about unseen products. Finally, we consider a real-world setting, showing that our method is better able to determine recommended products based on their reviews, in alternative to using Amazon's standard score aggregations.

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