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The probabilistic model assumes that there exists a set of documents ( R ) that contains all of the documents that are relevant to the

The probabilistic model assumes that there exists a set of documents (R) that contains all of the
documents that are relevant to the user's information need and no others. Derive the similarity
score:
sim(dj
, q) ~
P(dj
|R)
P(dj
|R)
Show all your working and assumptions

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