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1篇 您的检索式:作者名="Bogdan Nenchev"
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1Evaluating data-driven algorithms for predicting mechanical properties with small datasets:A case study on gear steel hardenability显示文摘Data-driven algorithms for predicting mechanical properties with small datasets are evaluated in a case study on gear steel hardenability.The limitations of current data-driven algorithms and empirical models are identified.Challenges in analysing small datasets are discussed,and solution is proposed to handle small datasets with multiple variables.Gaussian methods in combination with novel predictive algorithms are utilized to overcome the challenges in analysing gear steel hardenability data and to gain insight into alloying elements interaction and structure homogeneity.The gained fundamental knowledge integrated with machine learning is shown to be superior to the empirical equations in predicting hardenability.Metallurgical-property relationships between chemistry,sample size,and hardness are predicted via two optimized machine learning algorithms:neural networks(NNs)and extreme gradient boosting(XGboost).A comparison is drawn between all algorithms,evaluating their performance based on small data sets.The results reveal that XGboost has the highest potential for predicting hardenability using small datasets with class imbalance and large inhomogeneity issues.Bogdan Nenchev Qing Tao Zihui Dong Chinnapat Panwisawas Haiyang Li Biao Tao Hongbiao Dong 2022International Journal of Minerals,Metallurgy and Materials2022,29,4:1
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