Ensemble Learning Based on Multimodal Multiobjective Optimization

Abstract

In ensemble learning, the accuracy and diversity are two conflicting objectives. As the number of base learners increases, the prediction speed of ensemble learning machines drops significantly and the required storage space also increases rapidly. How to balance these two goals for selective ensemble learning is an extremely essential problem. In this paper, ensemble learning based on multimodal multiobjective optimization is studied in detail. The great significance and importance of multimodal multiobjective optimization algorithm is to find these different classifiers ensemble by considering the balance between accuracy and diversity, and different classifiers ensemble correspond to the same accuracy and diversity. Experimental results show that multimodal multiobjective optimization algorithm can find more ensemble combinations than unimodal optimization algorithms.