This post is my view on what the score conveys. I will also try to interpret what is a “good” MAP score, and what is “bad”. While this depends on the application, it is still good to have an idea of what to expect.
So firstly, what is MAP, or AP. Suppose we are searching for images of a flower and we provide our image retrieval system a sample picture of a rose (query), we do get back a bunch of ranked images…
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