Complexity and Entropy in Legal Language

We study the language of legal codes from different countries and legal traditions, using concepts from physics, algorithmic complexity theory and information theory. We show that vocabulary entropy, which measures the diversity of the author’s choice of words, in combination with the compression fa...

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Veröffentlicht in:Frontiers in physics Jg. 9
1. Verfasser: Friedrich, Roland
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Frontiers Media S.A 04.06.2021
Schlagworte:
algorithmic complexity theory
complex systems
information theory
legal theory
linguistics
lossless compression algorithms
ISSN:2296-424X, 2296-424X
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Zusammenfassung:We study the language of legal codes from different countries and legal traditions, using concepts from physics, algorithmic complexity theory and information theory. We show that vocabulary entropy, which measures the diversity of the author’s choice of words, in combination with the compression factor, which is derived from a lossless compression algorithm and measures the redundancy present in a text, is well suited for separating different writing styles in different languages, in particular also legal language. We show that different types of (legal) text, e.g. acts, regulations or literature, are located in distinct regions of the complexity-entropy plane, spanned by the information and complexity measure. This two-dimensional approach already gives new insights into the drafting style and structure of statutory texts and complements other methods.
ISSN:2296-424X
2296-424X
DOI:10.3389/fphy.2021.671882