Search Results for author: Mark Harman

Found 9 papers, 3 papers with code

Fairness Improvement with Multiple Protected Attributes: How Far Are We?

1 code implementation25 Jul 2023 Zhenpeng Chen, Jie M. Zhang, Federica Sarro, Mark Harman

Existing research mostly improves the fairness of Machine Learning (ML) software regarding a single protected attribute at a time, but this is unrealistic given that many users have multiple protected attributes.

Attribute Fairness

A Comprehensive Empirical Study of Bias Mitigation Methods for Machine Learning Classifiers

2 code implementations7 Jul 2022 Zhenpeng Chen, Jie M. Zhang, Federica Sarro, Mark Harman

We find that (1) the bias mitigation methods significantly decrease ML performance in 53% of the studied scenarios (ranging between 42%~66% according to different ML performance metrics); (2) the bias mitigation methods significantly improve fairness measured by the 4 used metrics in 46% of all the scenarios (ranging between 24%~59% according to different fairness metrics); (3) the bias mitigation methods even lead to decrease in both fairness and ML performance in 25% of the scenarios; (4) the effectiveness of the bias mitigation methods depends on tasks, models, the choice of protected attributes, and the set of metrics used to assess fairness and ML performance; (5) there is no bias mitigation method that can achieve the best trade-off in all the scenarios.

Fairness

FrUITeR: A Framework for Evaluating UI Test Reuse

no code implementations8 Aug 2020 Yixue Zhao, Justin Chen, Adriana Sejfia, Marcelo Schmitt Laser, Jie Zhang, Federica Sarro, Mark Harman, Nenad Medvidovic

UI testing is tedious and time-consuming due to the manual effort required.

Software Engineering

Ownership at Large -- Open Problems and Challenges in Ownership Management

no code implementations15 Apr 2020 John Ahlgren, Maria Eugenia Berezin, Kinga Bojarczuk, Elena Dulskyte, Inna Dvortsova, Johann George, Natalija Gucevska, Mark Harman, Shan He, Ralf Lämmel, Erik Meijer, Silvia Sapora, Justin Spahr-Summers

Software-intensive organizations rely on large numbers of software assets of different types, e. g., source-code files, tables in the data warehouse, and software configurations.

BIG-bench Machine Learning Management

Model Validation Using Mutated Training Labels: An Exploratory Study

no code implementations24 May 2019 Jie M. Zhang, Mark Harman, Benjamin Guedj, Earl T. Barr, John Shawe-Taylor

MV mutates training data labels, retrains the model against the mutated data, then uses the metamorphic relation that captures the consequent training performance changes to assess model fit.

BIG-bench Machine Learning General Classification +1

Cannot find the paper you are looking for? You can Submit a new open access paper.