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Yuchi Zou, Hang Hu, Nanlv Liu, Guangsheng Wei, Yufeng Guo, and Lingzhi Yang, Consistency-filtered latent-enhanced deep learning for robust chromium yield prediction in electric arc furnace steelmaking, Int. J. Miner. Metall. Mater., (2026). https://doi.org/10.1007/s12613-026-3518-2
Yuchi Zou, Hang Hu, Nanlv Liu, Guangsheng Wei, Yufeng Guo, and Lingzhi Yang, Consistency-filtered latent-enhanced deep learning for robust chromium yield prediction in electric arc furnace steelmaking, Int. J. Miner. Metall. Mater., (2026). https://doi.org/10.1007/s12613-026-3518-2
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基于一致性过滤与潜在特征增强深度学习的电弧炉炼钢铬合金收得率预测

摘要: 电弧炉炼钢过程中合金收得率由出钢后的检测数据间接计算,受到测量准确性、工况扰动及标签噪声等因素影响,传统数据驱动模型在复杂工业数据条件下的预测稳定性受限。针对上述问题,本研究提出一种面向电弧炉炼钢铬合金收得率预测的噪声感知深度学习框架。设计标签感知去噪自编码器,在重构过程特征的同时利用监督信息学习与目标相关的潜在表征。利用极端梯度提升模型与标签感知去噪自编码器的预测差异进行样本一致性筛选,识别并剔除低可信炉次。构建潜在特征增强残差注意力网络,融合显式工艺变量与潜在特征,实现铬含量预测与铬收得率预测。基于实际电弧炉3788炉次数据的验证结果表明,所建立方法的铬收得率平均绝对误差、均方根误差和平均绝对百分比误差分别为0.035、0.046和7.216%,决定系数为0.624。与最佳基准模型相比,前三项误差分别降低35.2%、42.5%和35.0%。在0.03、0.04和0.05的绝对误差范围内,模型命中率分别达到60.55%、82.41%和87.94%。消融实验表明,一致性筛选、潜在表征学习和残差注意力建模对模型性能改善均有贡献。该方法为复杂工业噪声条件下的铬合金加入及炼钢过程调控提供数据驱动支持。

 

Consistency-filtered latent-enhanced deep learning for robust chromium yield prediction in electric arc furnace steelmaking

Abstract: Precise prediction of alloy yield is essential for quality control and cost reduction in electric arc furnace (EAF) steelmaking. Chromium (Cr) alloy yield is not directly measured and is obtained from post calculations, which makes the target highly sensitive to measurement uncertainty and process disturbances. Industrial production data contain missing values, inconsistent records, extreme heats, and label noise, which reduce the reliability of conventional data-driven models. To address these challenges, this study proposes a robust and noise-aware deep learning framework for Cr yield prediction in EAF steelmaking. The proposed framework integrates consistency-based sample filtering with latent representation learning, and employs a latent-enhanced residual attention network (LERAN) for robust Cr yield prediction. A label-aware denoising autoencoder (LADAE) is developed to reconstruct process features while learning yield-informed latent representations. Based on the disagreement between extreme gradient boosting and LADAE predictions, a consistency filtering strategy is introduced to identify and remove unreliable records. The proposed LERAN captures high-dimensional nonlinear interactions to enhance prediction robustness. Experiments were conducted on 3788 industrial heats collected from an EAF steel plant. The proposed method achieved the best overall performance among all compared models. For Cr yield prediction, the method obtained a mean absolute error of 0.035, a root mean square error of 0.046, a mean absolute percentage error of 7.216%, and a determination coefficient of 0.624. Compared with the best competing model, the mean absolute error, root mean square error, and mean absolute percentage error were reduced by 35.2%, 42.5%, and 35.0%, respectively. The determination coefficient increases from 0.160 to 0.624. The hit rates of proposed model within the error ranges of ±0.03, ±0.04, and ±0.05 achieve 60.55%, 82.41%, and 87.94%, respectively. Ablation analyses further confirmed the contributions of consistency filtering, latent representation learning, and residual-attention regression. These results demonstrate that the proposed framework effectively improve the robustness, prediction accuracy, and engineering applicability of Cr yield prediction under noisy industrial conditions.

 

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