April 2011
Beginner to intermediate
496 pages
19h 31m
English
Content preview from Computational Intelligence
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408 Chapter Ten—Performance Metrics
Caution should be observed when interpreting ROC curves. For example, it is
possible for two ROC curves with the same area to intersect (one will have higher
values on the left side of the plot, the other on the right). One will thus exhibit better
performance with respect to false positives, the other with respect to false negatives.
Depending on the relative importance (or cost) associated with each of these error
types, one or the other curve will represent the more desirable system.
Also, it is important that a sufficient number of cases be analyzed so that the true
positive and false positive ratios represent ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.