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A Na ve Bayes classification model was developed to detect credit card fraud of their customers. Table 4 . 1 shows the prediction made by
A Nave Bayes classification model was developed to detect credit card fraud of their
customers. Table shows the prediction made by the model on the test data. The value
"Yes' indicates a fraudulent transaction made on the credit card and the value No
indicates a normal transaction. Table
a Calculate the baseline performance.
b Calculate true positives TPs true negatives TNs false positive FPs and false negatives FNs
c Using the computed results in Qb calculate the following evaluation measures. Round your answer to the nearest decimal points.
i Classification accuracy rate.
ii Precision.
iii Recall.
iv Specificity.
v score.
d Using the computed results in Qa and Qc justify whether you would
propose the model to the company.
e Suggest TWO ways to overcome issues you have observed in Qd
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