How Variable May a Constant be? Measures of Lexical Richness in Perspective¶
Tweedie, F. J., & Baayen, R. H. (1998). How Variable May a Constant be? Measures of Lexical Richness in Perspective. Computers and the Humanities.
Cited by¶
2 citations across 2 artifacts.
Each citation links to the sentence it supports in the citing article.
Domain-specific¶
- Heaps' Law
- Type-Token Ratio
- The ratio is computationally simple and theoretically transparent, but carries a well-documented sample-size pathology: vocabulary grows sublinearly with text length (following the curve Heaps' law describes), so TTR systematically declines as a text gets longer even when the underlying lexical richness is unchanged, making raw TTR non-comparable across samples of unequal length
This sourceVocabulary size and lexical-richness measures built on it vary systematically with text length, even those proposed as length-independent constants.
Supported in partVerified against the source
- The ratio is computationally simple and theoretically transparent, but carries a well-documented sample-size pathology: vocabulary grows sublinearly with text length (following the curve Heaps' law describes), so TTR systematically declines as a text gets longer even when the underlying lexical richness is unchanged, making raw TTR non-comparable across samples of unequal length
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