Abstract
This research presents the implementation of artificial intelligence (AI) for classification of frogs in symmetry of the bioacoustics spectral by using the feedforward neural network approach (FNNA) and support vector machine (SVM). Recently, the symmetry concept has been applied in physics, and in mathematics to help make mathematical models tractable to achieve the best learning performance. Owing to the symmetry of the bioacoustics spectral, feature extraction can be achieved by integrating the techniques of Mel-scale frequency cepstral coefficient (MFCC) and mentioned machine learning algorithms, such as SVM, neural network, and so on. At the beginning, the raw data information for our experiment is taken from a website which collects many kinds of frog sounds. This in fact saves us collecting the raw data by using a digital signal processing technique. The generally proposed system detects bioacoustic features by using the microphone sensor to record the sounds of different frogs. The data acquisition system uses an embedded controller and a dynamic signal module for making high-accuracy measurements. With regard to bioacoustic features, they are filtered through the MFCC algorithm. As the filtering process is finished, all values from ceptrum signals are collected to form the datasets. For classification and identification of frogs, we adopt the multi-layer FNNA algorithm in machine learning and the results are compared with those obtained by the SVM method at the same time. Additionally, two optimizer functions in neural network include: scaled conjugate gradient (SCG) and gradient descent adaptive learning rate (GDA). Both optimization methods are used to evaluate the classification results from the feature datasets in model training. Also, calculation results from the general central processing unit (CPU) and Nvidia graphics processing unit (GPU) processors are evaluated and discussed. The effectiveness of the experimental system on the filtered feature datasets is classified by using the FNNA and the SVM scheme. The expected experimental results of the identification with respect to different symmetry bioacoustic features of fifteen frogs are obtained and finally distinguished.
Highlights
The lives on Earth are closely relevant to environmental changes on various spatial and temporal scales [1]
The feedforward neural networks structure is key to carry out the feature extraction and effective classification
Our study proposes an acoustic signal processing
Summary
The lives on Earth are closely relevant to environmental changes on various spatial and temporal scales [1]. Monitoring living creatures on a real-time basis allows us to gather significant acoustic data information, which can be used for predicting changes of environment and observing other relevant phenomena like global warming, animal extinction, natural disasters, and various diseases [20,21] Research in this field has been mushrooming. Monitoring living creatures on a real-time basis allows us to gather significant acoustic data information, which can be used for predicting changes of environment and observing other relevant phenomena like1454 global warming, animal extinction, natural disasters, and various diseases [20,21]. Expect that results of this research can lay a strong foundation for these applications
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