GraphCom: A multidimensional measure of graphic complexity applied to 131 written languages

Li Yun Chang, Yen Chi Chen, Charles A. Perfetti

    Research output: Contribution to journalArticle

    10 Citations (Scopus)

    Abstract

    We report a new multidimensional measure of visual complexity (GraphCom) that captures variability in the complexity of graphs within and across writing systems. We applied the measure to 131 written languages, allowing comparisons of complexity and providing a basis for empirical testing of GraphCom. The measure includes four dimensions whose value in capturing the different visual properties of graphs had been demonstrated in prior reading research—(1) perimetric complexity, sensitive to the ratio of a written form to its surrounding white space (Pelli, Burns, Farell, & Moore-Page, 2006); (2) number of disconnected components, sensitive to discontinuity (Gibson, 1969); (3) number of connected points, sensitive to continuity (Lanthier, Risko, Stolz, & Besner, 2009); and (4) number of simple features, sensitive to the strokes that compose graphs (Wu, Zhou, & Shu, 1999). In our analysis of the complexity of 21,550 graphs, we (a) determined the complexity variation across writing systems along each dimension, (b) examined the relationships among complexity patterns within and across writing systems, and (c) compared the dimensions in their abilities to differentiate the graphs from different writing systems, in order to predict human perceptual judgments (n = 180) of graphs with varying complexity. The results from the computational and experimental comparisons showed that GraphCom provides a measure of graphic complexity that exceeds previous measures in its empirical validation. The measure can be universally applied across writing systems, providing a research tool for studies of reading and writing.

    Original languageEnglish
    Pages (from-to)427-449
    Number of pages23
    JournalBehavior Research Methods
    Volume50
    Issue number1
    DOIs
    Publication statusPublished - 2018 Feb 1

    Keywords

    • Connected points
    • Disconnected component
    • Gestalt principles
    • Graphic complexity
    • Perimetric complexity
    • Simple features
    • Writing systems

    ASJC Scopus subject areas

    • Experimental and Cognitive Psychology
    • Developmental and Educational Psychology
    • Arts and Humanities (miscellaneous)
    • Psychology (miscellaneous)
    • Psychology(all)

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