Q3) You are given a biased classifier that produce random results for any given query. Probability of getting positive label estimated to be 0.75 What will be the accuracy of such model on a dataset with a class imbalance 70% positive instances? What is the entropy of the random model predictions?

Operations Research : Applications and Algorithms
4th Edition
ISBN:9780534380588
Author:Wayne L. Winston
Publisher:Wayne L. Winston
Chapter15: Deterministic Eoq Inventory Models
Section15.2: The Basic Economic Order Quantity Model
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Q3) You are given a biased classifier that produce random results for any given query.
Probability of getting positive label estimated to be 0.75
What will be the accuracy of such model on a dataset with a class imbalance
70% positive instances?
What is the entropy of the random model predictions?
Transcribed Image Text:Q3) You are given a biased classifier that produce random results for any given query. Probability of getting positive label estimated to be 0.75 What will be the accuracy of such model on a dataset with a class imbalance 70% positive instances? What is the entropy of the random model predictions?
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