TopicGPT: A Prompt-based Topic Modeling Framework

• URL: http://arxiv.org/abs/2311.01449v2
• Date: Mon, 1 Apr 2024 18:02:57 GMT
• Title: TopicGPT: A Prompt-based Topic Modeling Framework
• Authors: Chau Minh Pham, Alexander Hoyle, Simeng Sun, Philip Resnik, Mohit Iyyer,
• Abstract summary: We introduce TopicGPT, a prompt-based framework that uses large language models to uncover latent topics in a text collection. It produces topics that align better with human categorizations compared to competing methods. Its topics are also interpretable, dispensing with ambiguous bags of words in favor of topics with natural language labels and associated free-form descriptions.
• Score: 77.72072691307811
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Topic modeling is a well-established technique for exploring text corpora. Conventional topic models (e.g., LDA) represent topics as bags of words that often require "reading the tea leaves" to interpret; additionally, they offer users minimal control over the formatting and specificity of resulting topics. To tackle these issues, we introduce TopicGPT, a prompt-based framework that uses large language models (LLMs) to uncover latent topics in a text collection. TopicGPT produces topics that align better with human categorizations compared to competing methods: it achieves a harmonic mean purity of 0.74 against human-annotated Wikipedia topics compared to 0.64 for the strongest baseline. Its topics are also interpretable, dispensing with ambiguous bags of words in favor of topics with natural language labels and associated free-form descriptions. Moreover, the framework is highly adaptable, allowing users to specify constraints and modify topics without the need for model retraining. By streamlining access to high-quality and interpretable topics, TopicGPT represents a compelling, human-centered approach to topic modeling.

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