September 2013
Intermediate to advanced
548 pages
12h 25m
English
Content preview from Programming Erlang, 2nd Edition
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Adding Keywords to the Postings
If we look at the postings in the Erlang mailing list, you’ll see they don’t have any keywords. But even if they did, there is a more fundamental problem. Two different people might read the same document and disagree as to what keywords should be used to describe the document. So, if I do a keyword search, it won’t work if the keywords that the author of the document chose were different from the keywords I chose to search the document with.
Sherlock computes a keyword vector for each posting in the mailing list. We can ask Sherlock what the derived keyword vector was for posting 946 in 2009.
| | 1> sherlock:get_keyword_vector("2009", 946). |
| | [{"protocols",0.6983839995773734}, |
| | {"json",0.44660371850799946}, ... |
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