Estimation of maintainability parameters for object-oriented software using hybrid neural network and class level metrics

Lov Kumar (), Sangeeta Lal () and Lalita Bhanu Murthy ()
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Lov Kumar: Birla Institute of Technology and Science, Pilani
Sangeeta Lal: Jaypee Institute of Information Technology
Lalita Bhanu Murthy: Birla Institute of Technology and Science, Pilani

International Journal of System Assurance Engineering and Management, 2019, vol. 10, issue 5, No 26, 1234-1264

Abstract: Abstract The various software metrics proposed in the literature can be used to evaluate the quality of software systems written in object-oriented manner. These metrics are broadly categorized into two subcategories i.e., system level software metrics and class level software metrics. In this work, ten different types of class level metrics are considered as an input to develop one model for predicting software maintainability of object-oriented software system. These models are developed using three types of neural networks, i.e., artificial neural network, radial basis function network, and functional link artificial neural network. In this study, a hybrid algorithm based on genetic algorithm (GA) with gradient descent algorithm has been proposed to find optimal weights of these neural networks. Since accuracy of the prediction model is highly dependent on the class level metrics, they are considered as input of the models. So, five different feature selection techniques are used in this study to identify the best set of features with an objective to improve the accuracy of software maintainability prediction model. The effectiveness of these models are evaluated using four evaluation metrics, i.e., MAE, MMRE, RMSE, and SEM. In this work, parallel computing concept has been also considered with an objective to reduce the model training time. The results show that the model developed using the proposed hybrid algorithm based on GA with gradient descent algorithm give better results as compared to the work presented by other authors in literature. The results also show that feature selection techniques obtain better results for predicting maintainability as compared to all metrics. The experimental results show that parallel computing is beneficial in reducing the model training time.

Keywords: Artificial neural network (ANN); Function link artificial neural network (FLANN); Feature selection techniques; Software metrics; Radial basis function neural (RBN) network; Parallel computing (search for similar items in EconPapers)
Date: 2019
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DOI: 10.1007/s13198-019-00853-2

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