Structured Parallel Coordinates: (sub)corpus comparisons

© Copyright 2010-2012 Accademia Europea Bolzano

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This visualization shows a number of linguistic constructions or string sequences to be compared by their frequencies over different (sub)corpora using our extension of Parallel Coordinates called Structured Parallel Coordinates. The vertical axes represent the linguistic phenomenon of interest as well as distinctive characteristics of the (sub)corpora and frequencies for the occurrences by (sub)corpus. The red vertical bar separates axes with categorical data of the linguistic phenomenon and primary (sub)corpus characteristics from axes with numerical data of frequencies for the other (sub)corpus fields. Each record (e.g. an occurence of a linguistic construction and its frequencies by (sub)corpus) is represented by a single line connecting the appropriate points on the axes.

The data samples are extracted from 'Scitex' – a diachronic corpus for analyzing the development of scientific registers (Degaetano-Ortlieb et al., 2012) and were gently provided to us by the Department of Applied Linguistics, Interpreting and Translation, Universität des Saarlandes. We present different visualizations for two data sets:'help' plus complements and 'modal meanings'. The visualizations show how these linguistic features evolve over time and register. Different visualizations are provided based on normalized frequencies as well as percentages of occurrences.

Reference: Stefania Degaetano-Ortlieb, Kermes Hannah, Ekaterina Lapshinova-Koltunski, and Teich Elke. 2012. Scitex – a diachronic corpus for analyzing the development of scientific registers. In P. Bennett, M. Durrell, S. Scheible, and R.J. Whitt (eds). New Methods in Historical Corpus Linguistics, volume CLIP (Vol. 2). Narr.

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