期刊
COMPUTATIONAL MATERIALS SCIENCE
卷 228, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.commatsci.2023.112270
关键词
Alloy design; Machine learning; Property prediction; Aluminium alloys; Class-based regression
The widespread use of aluminium alloys in aerospace, transport and marine industries can be attributed to their desirable physical properties. Understanding the relationship between alloy composition, microstructure and mechanical properties is complex. Machine learning has proven to be a valuable tool in designing new alloys. This study utilizes a data-driven partitioning scheme to train individual regressors, which outperforms traditional domain knowledge-based partitioning, leading to increased model accuracy and interpretability.
The widespread use of aluminium alloys in the aerospace, transport and marine industries is attributed to their desirable physical properties. The relationship between the alloy composition and microstructure and the resultant mechanical properties is complicated. Machine learning (ML) has become a valuable asset in designing new alloys. The accuracy of previously utilised ML models has been increased by partitioning the alloy data set and training regressors for individual partitions. This study uses a recently reported data-driven partitioning scheme that divides the data into classes based on feature similarity. Individual regressors were trained on each class and compared with the regressor trained on the entire data set. It was revealed that individual class-based regressors are more interpretable without loss in prediction accuracy. The results indicate that the data-driven partitioning scheme outperforms traditional domain knowledge based partitioning, providing both increased model accuracy and increased model interpretability.
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