Heaps’ law – Knowledge and References

Heaps' law

Structured Text Representations

Published in Jan Žižka, František Dařena, Arnošt Svoboda, Text Mining with Machine Learning, 2019

Jan Žižka, František Dařena, Arnošt Svoboda

Heaps’ law [114] describes the relationship between the size of a data collection as expressed by the number of words and the number of unique words. This relationship is demonstrated by the formula: M=k⋅Nb,

Keydrop: Dynamic Keyboard Layout for Faster Typing and Fewer Typos

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Journal Information

Published in International Journal of Human–Computer Interaction, 2023

Robert Susik, Szymon Grabowski

The second, Heaps law (1978) helps to estimate the size of vocabulary (V) for a given number of words (or tokens) in the text (T). Equation 2 defines a formula that returns the vocabulary size for given parameters k and b that are determined empirically.

Heaps' law

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Structured Text Representations

Keydrop: Dynamic Keyboard Layout for Faster Typing and Fewer Typos