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Word Forms Are Structured for Efficient Use.

Kyle Mahowald1, Isabelle Dautriche2, Edward Gibson1

  • 1Department of Brain and Cognitive Science, MIT.

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|October 9, 2018
PubMed
Summary
This summary is machine-generated.

Frequent words are easier to produce and understand, supporting the idea that language evolves for efficient communication. This study analyzed word forms across 96 languages to test this communication efficiency hypothesis.

Keywords:
CommunicationEfficiencyLexiconPhonologyWord frequency

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Area of Science:

  • Linguistics
  • Computational Linguistics
  • Psycholinguistics

Background:

  • Zipf's Law suggests frequent words require less effort for efficient communication.
  • Frequent words are often shorter, but this study explores other ease-of-use factors.
  • Orthography is used as a proxy for phonetic ease of production and comprehension.

Purpose of the Study:

  • To test if frequent word forms are easier to produce and understand, even when controlling for word length.
  • To investigate the relationship between word frequency, orthographic properties, and communication efficiency across languages.
  • To provide evidence for language usage pressures shaping lexicons for ease of processing.

Main Methods:

  • Analysis of word forms from Wikipedia corpora across 96 diverse languages.
  • Utilizing orthographic well-formedness and number of orthographic neighbors as proxies for phonetic ease.
  • Statistical analysis controlling for word length to isolate frequency effects.

Main Results:

  • Across languages and families, more frequent word forms exhibit greater orthographic well-formedness.
  • Higher frequency word forms tend to possess more orthographic neighbors compared to less frequent ones.
  • These findings hold true even when controlling for word length, reinforcing the ease-of-use hypothesis.

Conclusions:

  • Lexicons are structured by language usage pressures to enhance communication efficiency.
  • Orthographic properties of word forms reflect underlying phonetic ease, influenced by usage frequency.
  • The study supports the principle that languages adapt to minimize cognitive and articulatory effort in communication.