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Feature Learning with Multi-objective Evolutionary Computation in the generation of Acoustic Features

José Antonio Alves Menezes, Giordano Cabral, Bruno Gomes, Paulo Pereira
INTELIGENCIA ARTIFICIAL , Volume 22, pp 14-35; doi:10.4114/intartif.vol22iss64pp14-35

Abstract: To choice audio features has been a very interesting theme for audio classification experts. They have seen that this process is probably the most important effort to solve the classification problem. In this sense, there are techniques of Feature Learning for generate new features more suitable for classification model than conventional features. However, these techniques generally do not depend on knowledge domain and they can apply in various types of raw data. However, less agnostic approaches learn a type of knowledge restricted to the area studded. The audio data requires a specific knowledge type. There are many techniques that seek to improve the performance of the new generation of acoustic features, among which stands the technique that use evolutionary algorithms to explore analytical space of function. However, the efforts made leave opportunities for improvement. The purpose of this work is to propose and evaluate a multi-objective alternative to the exploitation of analytical audio features. In addition, experiments were arranged to be validated the method, with the help a computational prototype that implemented the proposed solution. After it was found the effectiveness of the model and ensuring that there is still opportunity for improvement in the chosen segment.
Keywords: Function / classification / model / acoustic / computation / evolutionary / Audio Features / Multi Objective

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