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WordSmith Tools‘ KeyWords. 梁茂成 frank@liang.com.cn. What are keywords? Positive and negative keywords Using Keywords analysis in...... How? Keyness and p value Practice. What are keywords?.
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WordSmith Tools‘ KeyWords 梁茂成 frank@liang.com.cn
What are keywords? • Positive and negative keywords • Using Keywords analysis in...... • How? • Keyness and p value • Practice
What are keywords? A keyword is a word whose relative frequency in an observed corpus is unusually higher or lower than that in a reference corpus.
Positive and negative keywords Positive keywords are words which are unusually more frequent than they are in a reference corpus. In legal documents, for example, words like act, article, penalty, delinquency, etc. are much more frequent than they are in a general corpus.
Positive and negative keywords In a corpus of texts written by corpus linguists, words like type, token, corpus, frequency, concordance, etc. would be much more frequent than they are in a general corpus. In medical texts…… In zoology……
Positive and negative keywords Negative keywords are words which are much less frequent than they are in a reference corpus. underuse
Using KeyWords analysis In lexicography…… In SLA……
How? In order to make a KeyWords analysis with Wordsmith Tools, two wordlists are needed. Wordlists show the frequency profiles of words in a corpus.
Keyness and p value • Keyness and p value indicate the extent to which a word in an observed corpus is more or less frequent than it is in a general corpus.
Now, is “the” overused or underused in Chinese EFL learners’ texts? What is the frequency profile of personal pronouns in Chinese EFL learners’ texts?