Search Results for author: Gopi Krishnan Rajbahadur

Found 8 papers, 2 papers with code

The Impact of Using Regression Models to Build Defect Classifiers

no code implementations12 Feb 2022 Gopi Krishnan Rajbahadur, Shaowei Wang, Yasutaka Kamei, Ahmed E. Hassan

We find that: i) Random forest based classifiers outperform other classifiers (best AUC) for both classifier building approaches; ii) In contrast to common practice, building a defect classifier using discretized defect counts (i. e., discretized classifiers) does not always lead to better performance.

regression

Impact of Discretization Noise of the Dependent variable on Machine Learning Classifiers in Software Engineering

no code implementations12 Feb 2022 Gopi Krishnan Rajbahadur, Shaowei Wang, Yasutaka Kamei, Ahmed E. Hassan

Researchers usually discretize a continuous dependent variable into two target classes by introducing an artificial discretization threshold (e. g., median).

Towards a consistent interpretation of AIOps models

no code implementations4 Feb 2022 Yingzhe Lyu, Gopi Krishnan Rajbahadur, Dayi Lin, Boyuan Chen, Zhen Ming, Jiang

Artificial Intelligence for IT Operations (AIOps) has been adopted in organizations in various tasks, including interpreting models to identify indicators of service failures.

Feature Importance

The impact of feature importance methods on the interpretation of defect classifiers

no code implementations4 Feb 2022 Gopi Krishnan Rajbahadur, Shaowei Wang, Yasutaka Kamei, Ahmed E. Hassan

We further observe that the commonly used defect datasets are rife with feature interactions and these feature interactions impact the computed feature importance ranks of the CS methods (not the CA methods).

Feature Importance

Towards Training Reproducible Deep Learning Models

1 code implementation4 Feb 2022 Boyuan Chen, Mingzhi Wen, Yong Shi, Dayi Lin, Gopi Krishnan Rajbahadur, Zhen Ming, Jiang

However, DL models are challenging to be reproduced due to issues like randomness in the software (e. g., DL algorithms) and non-determinism in the hardware (e. g., GPU).

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