4. Two different machine learning techniques are applied to a numeric data set and the two models built are Model 1 and Model 2. The classification test errors as paired sequences, using a 10-fold cross validation over 10 trials, are recorded as follows: Model 1: Model 2: 0.1 0.7 0.4 0.1 0.7 0.3 0.2 0.5 0.1 (a) Which model is better if we apply "voting" (if any)? (b) Which model is better than the other, if we compare the differences of their average errors, error (model 1)-error(model2), by using the paired Student's t-test with 9 degrees of freedom at the 10% level (i.e., 80% confidence level)? Compute and show work. 0.9 0.7 0.5 0.3 0.5 0.4 0.3 0.8 0.2 0.1 0.2
4. Two different machine learning techniques are applied to a numeric data set and the two models built are Model 1 and Model 2. The classification test errors as paired sequences, using a 10-fold cross validation over 10 trials, are recorded as follows: Model 1: Model 2: 0.1 0.7 0.4 0.1 0.7 0.3 0.2 0.5 0.1 (a) Which model is better if we apply "voting" (if any)? (b) Which model is better than the other, if we compare the differences of their average errors, error (model 1)-error(model2), by using the paired Student's t-test with 9 degrees of freedom at the 10% level (i.e., 80% confidence level)? Compute and show work. 0.9 0.7 0.5 0.3 0.5 0.4 0.3 0.8 0.2 0.1 0.2
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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