A rule set, a tree, etc. may be imperfect
{"Image DocumentName": "A rule set, a tree, etc. may be imperfect", "Image ImageDescription": "It may not classify all of the training set instances correctly. But it has been derived from the training set. In effect, it is optimized for the training set. Its error rate on an independent test set is likely to be much higher.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}