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You are given the query Q= “online courses” and two documents: D1 = “online courses search engine” D2 = “online education is affordable”

ByAdmin August 15, 2021August 15, 2021

Question 3

You are given the query Q= “online courses” and two documents:

D1 = “online courses search engine”

D2 = “online education is affordable”

Assume you are using the maximum likelihood estimator without smoothing to calculate the probabilities of words in documents (i.e., the estimated $p (w ∣ D)$ is the relative frequency of the word $w$ in the document $D$ ). Based on the unigram query likelihood model, which of the following choices is correct?

1 point

P(Q|D1) = 1/16 P(Q|D2) = 1/4

P(Q|D1) = 1/16 P(Q|D2) = 0

P(Q|D1) = 1/2 P(Q|D2) = 1/2

P(Q|D1) = 0 P(Q|D2) = 1/4

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