Software development effort estimation using boosting algorithms and automatic tuning of hyperparameters with Optuna

Author:

Hassanali Maryam1ORCID,Soltanaghaei Mohammadreza1ORCID,Javdani Gandomani Taghi2ORCID,Zamani Boroujeni Farsad3ORCID

Affiliation:

1. Department of Computer Engineering Isfahan (Khorasgan) Branch, Islamic Azad University Isfahan Iran

2. Department of Computer Science Shahrekord University Shahrekord Iran

3. Department of Computer Engineering, Science and Research Branch Islamic Azad University Tehran Iran

Abstract

AbstractConsidering the increasing need for software projects, estimating software development efforts is essential and can lead to improved project delivery quality. Machine learning methods are widely used to improve the accuracy of estimation. The boosting method is an ensemble machine learning technique less used in this field. In this research, five boosting algorithms including Adaboost, Gradient boosting, XGBoost, LightGBM, and CatBoost were implemented with the hyperparameter tuning framework Optuna on the ISBSG database. The Optuna is a next‐generation optimization method for automatically tuning hyperparameters of algorithms. Six evaluation criteria MMRE, MdMRE, MAE, MSE, Pred(0.25), and SA were used to evaluate the findings. The results show that the hyperparameter automatic tuning by Optuna increases the accuracy of prediction provided by all five models. When the Catboost algorithm uses Optuna to tune its hyperparameters has made the best prediction among the five algorithms studied in this research. Using Optuna, compared to the case where the algorithm uses its default settings, the highest percentage of prediction improvement was observed in the XGBoost algorithm (except for the SA criterion). Based on the criteria of MMRE, Pred(0.25), and SA, this study has a better prediction than some relatively similar articles.

Publisher

Wiley

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