Define data mining confusion matrix

Reference no: EM13143062

Suppose that you issued a query against a search engine and the search engine retrieved 125 documents. Suppose that there are total 250 documents in the whole internet that match your query (i.e., these are relevant documents) and 40 of them were included among 125 retrieved documents. Compute precision, recall, and F_score

Reference no: EM13143062

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