Sentence examples for boosting step from inspiring English sources

It is also evident from the figure that the strong learner with collapsed around the th boosting step, as expected in boosting [27].

Within each boosting step, different weights are considered for errors on false negatives and false positives, and differently updated for negatives and positives.

In [27], samples per class are used as the input to the LDA learner in order to get weaker but more diverse LDA learners; random samples per class are taken for the first boosting step; the hardest (with the largest ) samples per class are selected for subsequent steps.

At each boosting step, only one element of the parameter vector is updated, and the previous boosting steps are included as an offset [6].

In order to determine the optimal number of iterations, the classifier is evaluated on every boosting step by its area under the curve (AUC) performance (in a 3-fold cross-validation test).

In detail, the boosting procedure works as follows: For each covariate, one specific base-learner is defined and in every boosting step the algorithm updates only the covariate with the best performing base-learner.

Figure 3 The evolutions of various identification rates over the boosting steps with the best parameter set tested.

The evolutions of various identification rates over the boosting steps are shown in Figure 3 with this set of parameters.

Therefore, a new training sample selection method is introduced in this paper to include more "difficult" samples in subsequent boosting steps to get better boosting results.

From the figure, the hardness of the selected samples (i.e., the weight) decreases quickly after the first few boosting steps.

Therefore, by choosing only a subset of the available training samples, the diversity among learners at different boosting steps is enhanced.