Attribute Name |
Definition |
Correctly Classified |
Displays the percentage of correctness test that how many instances are categorized accurately. |
Incorrectly classified |
Displays the percentage of incorrectness test that how many instances are categorized accurately. |
TP Rate |
Those which were true and classified as True. |
FP Rate |
Those which were false but classified as True. |
ROC Rate |
ROC graph is a technique for visualizing, organizing and selecting classifiers based on their performance.ROC graphs have long beenused in signal detection theory. |
Precision |
Calculating precision and recall is actually quite easy. When you get the actual results you sum up how many times you were right or wrong |
Types of Precision
TN
TP
FN
FP |
There are four ways of being right or wrong:
case was negative and predicted negative
case was positive and predicted positive
case was positive but predicted negative
case was negative but predicted positive |
Accuracy |
A measure of a predictive model that reflects the proportionatenumber of times that the modelis correct when applied to data. |
Error Rate |
A number that reflects the rate of errors made by a predictive model. It is one minus the accuracy. |