(Almost) unique combinations of words can be searched for online, and if they have appeared in a published text, the search will identify where.
SIPs with a linguistic density of two or three words, adjective, adjective, noun or adverb, adverb, verb, will signal the author's attitude, premise or conclusions to the reader or express an important idea.Īnother use of SIPs is as a detection tool for plagiarism. Christian Rudder has also used this concept with data from online dating profiles and Twitter posts to determine the phrases most characteristic of a given race or gender in his book Dataclysm. uses this concept in determining keywords for a given book or chapter, since keywords of a book or chapter are likely to appear disproportionately within that section. A statistically improbable phrase ( SIP) is a phrase or set of words that occurs more frequently in a document (or collection of documents) than in some larger corpus.
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