Vowel and Consonant Classification through Spectral Decomposition
Patricia Thaine, Gerald M. Penn · 2017
We consider two related problems in this paper.Given an undeciphered alphabetic writing system or mono-alphabetic cipher, determine: (1) which of its letters are vowels and which are consonants; and (2) whether the writing system is a vocalic alphabet or an abjad.We are able to show that a very simple spectral decomposition based on character co-occurrences provides nearly perfect performance with respect to answering both question types.