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I am interested in the problem of extracting key phrases from a text corpus. This is different from the keyword extraction problem, which is only for a particular document. This problem helps us, for example, to construct a domain-specific dictionary/taxonomy/ontology from that domain's set of documents.

I can only find some old research papers, like 20 years ago, on this problem. I would like to know if there are any recent research work? What are the best or most popular methods on this problem? Thanks.

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  • $\begingroup$ I don't think this question is "too broad" as it asks only for a list of references, not details of how to do everything. $\endgroup$ – Peter Flom♦ Jan 7 at 11:18
  • $\begingroup$ Thanks @PeterFlom, currently I use nltk's collocations to find frequent bigrams, but the results include non-domain terms. I am looking for better approaches. $\endgroup$ – Arnold Jan 8 at 4:16

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