Search Results for author: Tianpei Xia

Found 6 papers, 2 papers with code

Dazzle: Using Optimized Generative Adversarial Networks to Address Security Data Class Imbalance Issue

no code implementations22 Mar 2022 Rui Shu, Tianpei Xia, Laurie Williams, Tim Menzies

Conclusion: Based on this study, we would suggest the use of optimized GANs as an alternative method for security vulnerability data class imbalanced issues.

Bayesian Optimization

Omni: Automated Ensemble with Unexpected Models against Adversarial Evasion Attack

no code implementations23 Nov 2020 Rui Shu, Tianpei Xia, Laurie Williams, Tim Menzies

Conclusion: When employing ensemble defense against adversarial evasion attacks, we suggest creating an ensemble with unexpected models that are distant from the attacker's expected model (i. e., target model) through methods such as hyperparameter optimization.

BIG-bench Machine Learning Ensemble Learning +2

Methods for Stabilizing Models across Large Samples of Projects (with case studies on Predicting Defect and Project Health)

1 code implementation6 Nov 2019 Suvodeep Majumder, Tianpei Xia, Rahul Krishna, Tim Menzies

To the best of our knowledge, STABILIZER is order of magnitude faster than the prior state-of-the-art transfer learners which seek to find conclusion stability, and these case studies are the largest demonstration of the generalizability of quantitative predictions of project quality yet reported in the SE literature.

Transfer Learning

How to Better Distinguish Security Bug Reports (using Dual Hyperparameter Optimization

no code implementations4 Nov 2019 Rui Shu, Tianpei Xia, Jianfeng Chen, Laurie Williams, Tim Menzies

For example, in a study of security bug reports from the Chromium dataset, the median recalls of FARSEC and Swift were 15. 7% and 77. 4%, respectively.

Software Engineering

Software Engineering for Fairness: A Case Study with Hyperparameter Optimization

no code implementations14 May 2019 Joymallya Chakraborty, Tianpei Xia, Fahmid M. Fahid, Tim Menzies

To the best of our knowledge, this is the first application of hyperparameter optimization as a tool for software engineers to generate fairer software.

BIG-bench Machine Learning Fairness +1

Hyperparameter Optimization for Effort Estimation

1 code implementation28 Apr 2018 Tianpei Xia, Rahul Krishna, Jianfeng Chen, George Mathew, Xipeng Shen, Tim Menzies

We test OIL on a wide range of hyperparameter optimizers using data from 945 software projects.

Software Engineering

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