Menzerath’s Law in the Syntax of Languages Compared with Random Sentences

The Menzerath law is considered to show an aspect of the complexity underlying natural language. This law suggests that, for a linguistic unit, the size (<i>y</i>) of a linguistic construct decreases as the number (<i>x</i>) of constructs in the unit increases. This article i...

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Main Author: Kumiko Tanaka-Ishii
Format: Article
Language:English
Published: MDPI AG 2021-05-01
Series:Entropy
Subjects:
Online Access:https://www.mdpi.com/1099-4300/23/6/661
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author Kumiko Tanaka-Ishii
author_facet Kumiko Tanaka-Ishii
author_sort Kumiko Tanaka-Ishii
collection DOAJ
description The Menzerath law is considered to show an aspect of the complexity underlying natural language. This law suggests that, for a linguistic unit, the size (<i>y</i>) of a linguistic construct decreases as the number (<i>x</i>) of constructs in the unit increases. This article investigates this property syntactically, with <i>x</i> as the number of constituents modifying the main predicate of a sentence and <i>y</i> as the size of those constituents in terms of the number of words. Following previous articles that demonstrated that the Menzerath property held for dependency corpora, such as in Czech and Ukrainian, this article first examines how well the property applies across languages by using the entire Universal Dependency dataset ver. 2.3, including 76 languages over 129 corpora and the Penn Treebank (PTB). The results show that the law holds reasonably well for <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>x</mi><mo>></mo><mn>2</mn></mrow></semantics></math></inline-formula>. Then, for comparison, the property is investigated with syntactically randomized sentences generated from the PTB. These results show that the property is almost reproducible even from simple random data. Further analysis of the property highlights more detailed characteristics of natural language.
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spelling doaj.art-96d71ebbcd02457eb200f24d5d07fb172023-11-21T21:15:32ZengMDPI AGEntropy1099-43002021-05-0123666110.3390/e23060661Menzerath’s Law in the Syntax of Languages Compared with Random SentencesKumiko Tanaka-Ishii0Research Center for Advanced Technology, The University of Tokyo, Tokyo 153-8904, JapanThe Menzerath law is considered to show an aspect of the complexity underlying natural language. This law suggests that, for a linguistic unit, the size (<i>y</i>) of a linguistic construct decreases as the number (<i>x</i>) of constructs in the unit increases. This article investigates this property syntactically, with <i>x</i> as the number of constituents modifying the main predicate of a sentence and <i>y</i> as the size of those constituents in terms of the number of words. Following previous articles that demonstrated that the Menzerath property held for dependency corpora, such as in Czech and Ukrainian, this article first examines how well the property applies across languages by using the entire Universal Dependency dataset ver. 2.3, including 76 languages over 129 corpora and the Penn Treebank (PTB). The results show that the law holds reasonably well for <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>x</mi><mo>></mo><mn>2</mn></mrow></semantics></math></inline-formula>. Then, for comparison, the property is investigated with syntactically randomized sentences generated from the PTB. These results show that the property is almost reproducible even from simple random data. Further analysis of the property highlights more detailed characteristics of natural language.https://www.mdpi.com/1099-4300/23/6/661Menzerath lawcomplexitynatural languagesyntax
spellingShingle Kumiko Tanaka-Ishii
Menzerath’s Law in the Syntax of Languages Compared with Random Sentences
Entropy
Menzerath law
complexity
natural language
syntax
title Menzerath’s Law in the Syntax of Languages Compared with Random Sentences
title_full Menzerath’s Law in the Syntax of Languages Compared with Random Sentences
title_fullStr Menzerath’s Law in the Syntax of Languages Compared with Random Sentences
title_full_unstemmed Menzerath’s Law in the Syntax of Languages Compared with Random Sentences
title_short Menzerath’s Law in the Syntax of Languages Compared with Random Sentences
title_sort menzerath s law in the syntax of languages compared with random sentences
topic Menzerath law
complexity
natural language
syntax
url https://www.mdpi.com/1099-4300/23/6/661
work_keys_str_mv AT kumikotanakaishii menzerathslawinthesyntaxoflanguagescomparedwithrandomsentences