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<p>Software defect prediction (SDP) is an essential task in software engineering for identifying defective modules early in the development process, thereby improving software quality and reducing maintenance costs. Existing SDP models often face a number of difficulties despite notable improvements, such as imbalanced datasets and the inability to capture the complex relationships within the code. In this manuscript, a software defect prediction using edge feature with self-attention-based cycle-consistent generative adversarial network optimized by the pelican optimization algorithm (SDP-ESA-CycleGAN-POA) is proposed to enhance the defect prediction by capturing semantic features within the software code. The proposed method utilizes abstract syntax tree (AS-Tree) tokens and dense vector transformation through word embedding to improve prediction accuracy. Then, edge feature and self-attention-based cycle-consistent generative adversarial network (ESA-CycleGAN) predicts the data as buggy and clean. Finally, the pelican optimization algorithm (POA) is employed to enhance the weight parameters of the ESA-CycleGAN, leading to improved defect prediction accuracy. This research evaluates the ESA-CycleGAN model using the PROMISE dataset. The proposed SDP-ESA-CycleGAN-POA method achieves 21.57%, 23.41%, 16.10% and 18.73% higher accuracy compared with the existing models: a new method to SDP accuracy with machine learning (SDP-RF-LR), SDP using optimum trained convolutional neural network (SDP-OT-CNN), SDP utilizing intelligent ensemble-based method (SDP-RF-SVM-ANN) and SDP through neural network and feature selections (SDP-RBFNN-FS) respectively.</p>

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Enhanced software defect prediction using edge feature and self-attention GAN with pelican optimization

  • 期刊论文

  • 发表日期：

    2025年12月26日

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  • S. V. Gayetri Devi,
  • P. V. V. Satyanarayana,
  • A. Mani,
  • S. Praveena

摘要

Software defect prediction (SDP) is an essential task in software engineering for identifying defective modules early in the development process, thereby improving software quality and reducing maintenance costs. Existing SDP models often face a number of difficulties despite notable improvements, such as imbalanced datasets and the inability to capture the complex relationships within the code. In this manuscript, a software defect prediction using edge feature with self-attention-based cycle-consistent generative adversarial network optimized by the pelican optimization algorithm (SDP-ESA-CycleGAN-POA) is proposed to enhance the defect prediction by capturing semantic features within the software code. The proposed method utilizes abstract syntax tree (AS-Tree) tokens and dense vector transformation through word embedding to improve prediction accuracy. Then, edge feature and self-attention-based cycle-consistent generative adversarial network (ESA-CycleGAN) predicts the data as buggy and clean. Finally, the pelican optimization algorithm (POA) is employed to enhance the weight parameters of the ESA-CycleGAN, leading to improved defect prediction accuracy. This research evaluates the ESA-CycleGAN model using the PROMISE dataset. The proposed SDP-ESA-CycleGAN-POA method achieves 21.57%, 23.41%, 16.10% and 18.73% higher accuracy compared with the existing models: a new method to SDP accuracy with machine learning (SDP-RF-LR), SDP using optimum trained convolutional neural network (SDP-OT-CNN), SDP utilizing intelligent ensemble-based method (SDP-RF-SVM-ANN) and SDP through neural network and feature selections (SDP-RBFNN-FS) respectively.