Machine Learning With Boosting: A Beginner's Guide by Scott Hartshorn

Author:Scott Hartshorn [Hartshorn, Scott]
Language: eng
Format: epub
Published: 2017-08-12T00:00:00+00:00

Step 5 - Calculate Amount Of Change

Equation For Calculating The Amount Of Change

We need to calculate the amount of change for each of the three zones separately. The result that gets calculated will be a value in the infinity range.

The equation that we will use to calculate the change for each group is

Where

That is, the numerator is the sum of the current error of all of the training points in that group. The current error for any given data point can be positive or negative. The numerator, which is the sum of all those, values can be either positive or negative.

The equation for the denominator is

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