A Multifacet Hierarchical Sentiment-Topic Model with Application to Multi-Brand Online Review Analysis

• URL: http://arxiv.org/abs/2502.18927v1
• Date: Wed, 26 Feb 2025 08:30:06 GMT
• Title: A Multifacet Hierarchical Sentiment-Topic Model with Application to Multi-Brand Online Review Analysis
• Authors: Qiao Liang, Xinwei Deng,
• Abstract summary: The proposed method is built on a unified generative framework that explains review words with a hierarchical brand-associated topic model.<n>A novel hierarchical Polya urn (HPU) scheme is proposed to enhance the topic-word association among topic hierarchy.<n> Experimental studies demonstrate that the proposed method can be effective in detecting reasonable topic hierarchy and deriving accurate brand-associated rankings.
• Score: 6.661618396933143
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Multi-brand analysis based on review comments and ratings is a commonly used strategy to compare different brands in marketing. It can help consumers make more informed decisions and help marketers understand their brand's position in the market. In this work, we propose a multifacet hierarchical sentiment-topic model (MH-STM) to detect brand-associated sentiment polarities towards multiple comparative aspects from online customer reviews. The proposed method is built on a unified generative framework that explains review words with a hierarchical brand-associated topic model and the overall polarity score with a regression model on the empirical topic distribution. Moreover, a novel hierarchical Polya urn (HPU) scheme is proposed to enhance the topic-word association among topic hierarchy, such that the general topics shared by all brands are separated effectively from the unique topics specific to individual brands. The performance of the proposed method is evaluated on both synthetic data and two real-world review corpora. Experimental studies demonstrate that the proposed method can be effective in detecting reasonable topic hierarchy and deriving accurate brand-associated rankings on multi-aspects.

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