The Text-Score Allocation Model : Finding Latent Topics of Online Review Documents and Multi-Item Ratings

Material type: 文書・図像類

Author: Katsumata, Sotaroほか

Publisher: Graduate School of Economics, Osaka University

Publication date: 2020-01

Material Format: Paper

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Note (General)：: This study focuses on online review data in which comments are written in natural languages and evaluations are attached as integers. This study devel...

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Paper

Material Type: 文書・図像類
Title: The Text-Score Allocation Model : Finding Latent Topics of Online Review Documents and Multi-Item Ratings
Author/Editor: Katsumata, Sotaro
Kim, Seungjin
Author Heading: Katsumata, Sotaro
https://nrid.nii.ac.jp/nrid/1000080613588
Kim, Seungjin
Publication, Distribution, etc.: Graduate School of Economics, Osaka University
Publication Date: 2020-01
Publication Date (W3CDTF): 2020-01
Periodical title: Discussion Papers In Economics And Business
No. or year of volume/issue: 20-01
Volume: 20-01
Pages: 1-35
Text Language Code: eng
Subject Heading: Topic Modeling
Customer Reviews
Forecasting
Target Audience: 一般
Note (General): This study focuses on online review data in which comments are written in natural languages and evaluations are attached as integers. This study develops a topic model incorporating both natural languages and evaluation scores, expanding latent Dirichlet allocation (LDA). The model consists of two components: LDA and a Dirichlet-binomial clustering model. The latter assumes binomial distributions for the review scores. Since the model assumes conjugate distributions, we can apply a fast and stable estimator based on collapsed Gibbs sampling to estimate the parameters. Further,the model enables us to examine the relationship between vocabulary words and review scores based on the topic allocation results.
Related Material (URI): URI
http://www2.econ.osaka-u.ac.jp/econ_society/dp/2001.pdf
Periodical Title (NCID): AA1160366X
https://ci.nii.ac.jp/ncid/AA1160366X
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 大阪大学 : 大阪大学学術情報庫　桜華