Machine Learning for OpenCV

Understanding different voting schemes

Two different voting schemes are common among voting classifiers:

• In hard voting (also known as majority voting), every individual classifier votes for a class, and the majority wins. In statistical terms, the predicted target label of the ensemble is the mode of the distribution of individually predicted labels.
• In soft voting, every individual classifier provides a probability value that a specific data point belongs to a particular target class. The predictions are weighted by the classifier's importance and summed up. Then the target label with the greatest sum of weighted probabilities wins the vote.

For example, let's assume we have three different classifiers in the ensemble that perform a binary ...