CS 6054 Study Guide - Final Guide: Dot Product, Jaccard Index, Regular Expression

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Name _______key_____________: suppose there is only one relevant document in a collection of 1000. When tf = 1, we have 1+log(tf: wf = 0, wf = 0. 1, wf = 10, wf = 1, rnnrrnnrnn are the top ten results with four relevant documents (the leftmost is the top ranked one). There are four precisions at the four recall levels (1, 2, 3, 4 from left to right every time there is an r). At which recall level the precision gets interpolated on the precision-recall curve? precisions at these recall levels are 1/1, 2/4, 3/5, and 4/8. 2/4 is interpolated with 3/5: 2, 1, 3, 4, most times the documents and queries are represented as vectors with non-negative elements. In this case, the cosine similarity between two of them has the range of slide 9/2/34. What set operation in java or a similar language may be called to answer the query brutus and not.

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