Diversity-Aware Coherence Loss for Improving Neural Topic Models
Raymond Li, Felipe Gonzalez-Pizarro, Linzi Xing, Gabriel Murray, Giuseppe Carenini
Abstract
The standard approach for neural topic modeling uses a variational autoencoder (VAE) framework that jointly minimizes the KL divergence between the estimated posterior and prior, in addition to the reconstruction loss. Since neural topic models are trained by recreating individual input documents, they do not explicitly capture the coherence between words on the corpus level. In this work, we propose a novel diversity-aware coherence loss that encourages the model to learn corpus-level coherence scores while maintaining high diversity between topics. Experimental results on multiple datasets show that our method significantly improves the performance of neural topic models without requiring any pretraining or additional parameters.- Anthology ID:
- 2023.acl-short.145
- Volume:
- Proceedings of the 61st Annual Meeting of the Association for Computational Linguistics (Volume 2: Short Papers)
- Month:
- July
- Year:
- 2023
- Address:
- Toronto, Canada
- Editors:
- Anna Rogers, Jordan Boyd-Graber, Naoaki Okazaki
- Venue:
- ACL
- SIG:
- Publisher:
- Association for Computational Linguistics
- Note:
- Pages:
- 1710–1722
- Language:
- URL:
- https://aclanthology.org/2023.acl-short.145
- DOI:
- 10.18653/v1/2023.acl-short.145
- Cite (ACL):
- Raymond Li, Felipe Gonzalez-Pizarro, Linzi Xing, Gabriel Murray, and Giuseppe Carenini. 2023. Diversity-Aware Coherence Loss for Improving Neural Topic Models. In Proceedings of the 61st Annual Meeting of the Association for Computational Linguistics (Volume 2: Short Papers), pages 1710–1722, Toronto, Canada. Association for Computational Linguistics.
- Cite (Informal):
- Diversity-Aware Coherence Loss for Improving Neural Topic Models (Li et al., ACL 2023)
- PDF:
- https://preview.aclanthology.org/nschneid-patch-5/2023.acl-short.145.pdf