libtext-ngram-perl - 0.15-3+b1 main

n-Gram analysis is a field in textual analysis which uses sliding window
character sequences in order to aid topic analysis, language
determination and so on. The n-gram spectrum of a document can be used
to compare and filter documents in multiple languages, prepare word
prediction networks, and perform spelling correction.
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Text::Ngram provides an efficient XS-based implementation of n-gram
spectrum analysis.