In corpus linguistics a keyword is a word which occurs in a text more often than we would expect to occur by chance alone. Keywords are calculated by carrying out a statistical test (e.g., loglinear) which compares the word frequencies in a text against their expected frequencies derived in a much larger corpus, which acts as a reference for general language use. AntConc is a freely available text analysis tool capable of calculating keywords.
See also
External links
- Understanding the role of text length, sample size and vocabulary size in determining text coverage, by Kiyomi Chujo and Masao Utiyama
- Frequency Level Checker
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