Answered step by step
Verified Expert Solution
Link Copied!

Question

...
1 Approved Answer

Problem 1 (16 Points): Probability Review Consider a classifier which randomly assigns labels to data points; specifically, for each label , it assigns that label

image text in transcribed
image text in transcribed
Problem 1 (16 Points): Probability Review Consider a classifier which randomly assigns labels to data points; specifically, for each label , it assigns that label with probability proportional to the number of times that label appears in the training dataset. Let the size of training set be N, total number of classes be K and ne be number of data points belonging to class c (zinc = N). Then the probability of labelling a data point with class c is ne/N. Consider a training set with N = 100, C = 2, n1 = n2 = 50 and a testing set with N = 100, C = 2, n1 = 30, n2 = 70. 1. 4 Points. What is the expected accuracy of the classifier on the training set? 2. 4 Points. What is the expected accuracy of the classifier on the testing set? Now consider a training set with N = 100, C = 3, n1 = 50, n2 = 20, n3 = 30 and a testing set with N = 100, C = 3, n1 = 20, n2 = 20, n3 = 60. 1. 4 Points. What is the expected accuracy of the classifier on the training set? 2. 4 Points. What is the expected accuracy of the classifier on the testing set

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access with AI-Powered Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Financial Accounting

Authors: Dr. Larry M. Walther

1st Edition

9781456352974

Students also viewed these Mathematics questions