  In this paper, we propose a novel dynamic ensemble selection framework using
meta-learning. The framework is divided into three steps. In the first step,
the pool of classifiers is generated from the training data. The second phase
is responsible to extract the meta-features and train the meta-classifier. Five
distinct sets of meta-features are proposed, each one corresponding to a
different criterion to measure the level of competence of a classifier for the
classification of a given query sample. The meta-features are computed using
the training data and used to train a meta-classifier that is able to predict
whether or not a base classifier from the pool is competent enough to classify
an input instance. Three different training scenarios for the training of the
meta-classifier are considered: problem-dependent, problem-independent and
hybrid. Experimental results show that the problem-dependent scenario provides
the best result. In addition, the performance of the problem-dependent scenario
is strongly correlated with the recognition rate of the system. A comparison
with state-of-the-art techniques shows that the proposed-dependent approach
outperforms current dynamic ensemble selection techniques.

Machine Learning;Artificial Intelligence;Machine Learning