Questionnaire data analysis using information geometry
Questionnaire data analysis using information geometry
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使用信息几何进行问卷数据分析
DOI:
10.1038/s41598-020-63760-8
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发表时间:
2020
影响因子:
4.6
通讯作者:
Sloot, Peter M.
中科院分区:
文献类型:
--
作者:
Har-Shemesh, Omri;Quax, Rick;Lansing, J. Stephen;Sloot, Peter M.
The analysis of questionnaires often involves representing the high-dimensional responses in a low-dimensional space (e.g., PCA, MCA, or t-SNE). However questionnaire data often contains categorical variables and common statistical model assumptions rarely hold. Here we present a non-parametric approach based on Fisher Information which obtains a low-dimensional embedding of a statistical manifold (SM). The SM has deep connections with parametric statistical models and the theory of phase transitions in statistical physics. Firstly we simulate questionnaire responses based on a non-linear SM and validate our method compared to other methods. Secondly we apply our method to two empirical datasets containing largely categorical variables: an anthropological survey of rice farmers in Bali and a cohort study on health inequality in Amsterdam. Compare to previous analysis and known anthropological knowledge we conclude that our method best discriminates between different behaviours, paving the way to dimension reduction as effective as for continuous data.
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