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Communication Dans Un Congrès Année : 2018

How to visualize high-dimensional data: a roadmap

Hermann Moisl
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Résumé

Discovery of the chronological or geographical distribution of collections of historical text can be more reliable when based on multivariate rather than on univariate data because multivariate data provide a more complete description. Where the data are high-dimensional, however, their complexity can defy analyis using traditional philological methods. The first step in dealing with such data is to visualize it using graphical methods in order to identify any latent structure. If found, such structure facilitates formulation of hypotheses which can be tested using a range of mathematical and statistical methods. Where, however, the dimensionality is greater than 3, direct graphical investigation is impossible. The present discussion presents a roadmap of how this obstacle can be overcome, and is in three main parts: the first part presents some fundamental data concepts, the second describes an example corpus and a data set derived from it, and the third outlines two approaches to visualization of high-dimensional data: dimensionality reduction and cluster analysis.
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Dates et versions

hal-02145440 , version 1 (02-06-2019)
hal-02145440 , version 2 (17-12-2020)

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  • HAL Id : hal-02145440 , version 1

Citer

Hermann Moisl. How to visualize high-dimensional data: a roadmap. Workshop on Visualisations in Historical Linguistics, Aug 2018, Edinburgh, United Kingdom. ⟨hal-02145440v1⟩
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