Machine Learning for Data Mining

Combining by voting

Let's use an example to understand this method of combining models.

Consider that we have run three models and created a table like this:

We have the confidence for each model and its prediction. Let's see how we can combine these models.

If we take a look at the first row, we can see that each of these models is predicting that a person is going to leave. Hence, if we combine the predictions, we are still predicting that the person is going to leave. The confidence value, or the final confidence, is acquired by adding up the confidence values of all the models and dividing by the number of total models, three in our case. ...