Article(id=1319726409300422959, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319726382268138030, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20250245, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1743609600000, receivedDateStr=2025-04-03, revisedDate=1745251200000, revisedDateStr=2025-04-22, acceptedDate=null, acceptedDateStr=null, onlineDate=1792576895308, onlineDateStr=2026-10-21, pubDate=1763568000000, pubDateStr=2025-11-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792576895308, onlineIssueDateStr=2026-10-21, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792576895308, creator=13701087609, updateTime=1792576895308, updator=13701087609, issue=Issue{id=1319726382268138030, tenantId=1146029695717560320, journalId=1263187385517883426, year='2025', volume='53', issue='11', pageStart='3079', pageEnd='3432', issueExtLink='null', onlineDate='null', pubDate='1763568000000', pubDateStr='2025-11-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792576888863, creator='13701087609', updateTime=1792577494231, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1319728921399116056, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319726382268138030, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1319728921403310361, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319726382268138030, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=3127, endPage=3135, ext={EN=ArticleExt(id=1319726411095585073, articleId=1319726409300422959, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=A Semi-Supervised Generative Adversarial Network-Based Data Augmentation Method for Cement Clinker f-CaO and Its Effectiveness Evaluation, columnId=1319726165087077079, journalTitle=Journal of the Chinese Ceramic Society, columnName=Research Article, runingTitle=null, highlight=null, articleAbstract=
Introduction

The free lime (f-CaO) content in cement clinker is a key indicator for evaluating calcination quality and process stability, directly influencing cement soundness and mechanical performance. Efficient and accurate real-time prediction of f-CaO content is essential for achieving stable cement quality control. In actual production, process parameter data are sampled at approximately 1-second intervals, while f-CaO content is typically measured once per hour, resulting in a severe scarcity of labeled data. This asynchronous sampling and data heterogeneity constrain both the scale and diversity of data available for supervised learning models, thereby reducing prediction accuracy and generalization capability. To address this challenge, this study proposes a method based on a semi-supervised generative adversarial network (SSGAN) to enhance the diversity and representativeness of the training dataset. Through evaluating its impact on the downstream f-CaO prediction task and conducting ablation studies, the research explores the feasibility of applying GANs to address the issue of asynchronous sampling between process parameters and offline measurement data.

Methods

This study proposes a data augmentation model based on a semi-supervised generative adversarial network (SSGAN), which generates virtual data resembling the actual data distribution to expand the training dataset and effectively enhance the model's learning capability under conditions of limited labeled data. The model consists of three main components: an encoder, a generator network, and a discriminator network. The encoder first extracts features from a small amount of process parameter data with real labels, which are then used as conditional inputs. The generator learns the latent features of the true label distribution through adversarial training and generates corresponding label values based on unlabeled process parameter data. The discriminator distinguishes between real and generated labels, guiding the generator to continuously optimize its generation strategy. As adversarial training progresses, the generator produces synthetic label data that closely resemble actual production data, while the discriminator continuously improves its understanding of the true data distribution and label characteristics.

Results and discussion

When the SSGAN model is trained to approximately 10 000 iterations, both the discriminator loss and the generator loss converge to near zero and remain stable, indicating that a balance has been achieved between the generator and discriminator, and the model has effectively learned the latent distribution features within the process parameters. Further analysis of the distribution of generated label values shows that they exhibit a distribution trend generally similar to that of the real labels. The model demonstrates strong learning and fitting capability within the primary range of label values, and the generated data are reliable. After introducing SSGAN for data augmentation, the MAE, MSE, and RMSE of the downstream GRU (Gate Recurrent Unit) model for f-CaO content prediction decreased from 0.24, 0.08, and 0.29 to 0.19, 0.06, and 0.24, respectively, indicating an improvement in the model's ability to predict outliers and extreme samples. Ablation studies revealed that removing the encoder, the GRU module, or introducing random noise led to significantly higher prediction errors, highlighting the critical role of temporal information and deep features embedded in the process parameters for generating high-quality label data. In particular, the encoder and its internal GRU module are essential for capturing long-range temporal dependencies and dynamic variation patterns.

Conclusions

To address the issue of label scarcity caused by the mismatch in sampling intervals between process parameters and f-CaO content measurements, this study proposes a data augmentation method based on SSGAN. By using an encoder to extract high-dimensional features and a generator to learn the latent distribution of true labels, the approach constructs a more diverse and representative training dataset. Ablation experiments were conducted to evaluate the effectiveness of each key module. The main conclusions are as follows: The introduction of the SSGAN-based data augmentation strategy effectively expanded the training dataset. The distribution of the generated label values closely matched that of the true labels, verifying the reliability of the synthetic data. The application of the SSGAN method significantly improved the accuracy of the downstream f-CaO content prediction task, with MAE on the test set decreasing from 0.24 to 0.19, MSE from 0.08 to 0.06, and RMSE from 0.29 to 0.24. Ablation experiments further revealed that introducing random noise, removing the encoder, or omitting the GRU module led to significantly increased prediction errors. This highlights the critical role of temporal information and deep features embedded in process parameters for generating high-quality label data. In particular, the encoder and its internal GRU module are essential for capturing long-range temporal dependencies and dynamic variation patterns.

, authors=Xinyue YAO, Xuehong REN, Jiayuan YE, Munan ZHAI, Fuli CAO, Wensheng ZHANG, Hongtao ZHANG, authorsList=Xinyue YAO, Xuehong REN, Jiayuan YE, Munan ZHAI, Fuli CAO, Wensheng ZHANG, Hongtao ZHANG, authorCompany=null, correspAuthors=Xuehong REN, authorNote=

YAO Xinyue (1999-), female, Master candidate. E-mail:

, correspAuthorsNote=
REN Xuehong (1984-), female, Ph.D., Professor. E-mail:
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高效、准确地实时预测游离氧化钙(f-CaO)含量对于实现水泥质量的稳定控制至关重要。针对生产过程中采样周期不一致引发的标签数据缺失、f-CaO含量预测精度低的问题,本研究提出并采用了半监督生成对抗网络(SSGAN)的方法,对f-CaO数据集进行数据增强,并借助门控递归单元模型,对输入方式及编码器等关键模块进行了消融实验,评估了其有效性。结果表明,SSGAN方法可以生成与真实数据分布高度一致的虚拟标签数据,显著扩充了训练样本的多样性和代表性,并使得下游预测任务的平均绝对误差、均方误差、均方根误差分别由0.24、0.08、0.29降至0.19、0.06、0.24,证实了SSGAN策略在降低预测误差和提升模型鲁棒性方面的显著作用,为材料数据增强研究提供了可借鉴的方法。

, authors=姚歆玥, 任雪红, 叶家元, 翟牧楠, 曹傅荔, 张文生, 张洪滔, authorsList=姚歆玥, 任雪红, 叶家元, 翟牧楠, 曹傅荔, 张文生, 张洪滔, authorCompany=null, correspAuthors=任雪红, authorNote=

姚歆玥(1999—),女,硕士研究生。

, correspAuthorsNote=
任雪红(1984—),女,博士,教授。
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姚歆玥 , 任雪红 , 叶家元 , 翟牧楠 , 曹傅荔 , 张文生 , 张洪滔
硅酸盐学报 | 研究论文 2025,53(11): 3127-3135
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硅酸盐学报 |研究论文 2025 , 53 (11) : 3127 -3135
基于半监督生成对抗网络的水泥熟料游离氧化钙数据增强方法及其有效性评价
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姚歆玥 , 任雪红 , 叶家元, 翟牧楠, 曹傅荔, 张文生, 张洪滔
作者信息
  • 中国建筑材料科学研究总院有限公司,北京 100024
通讯作者:
任雪红(1984—),女,博士,教授。
作者简介:

姚歆玥(1999—),女,硕士研究生。

A Semi-Supervised Generative Adversarial Network-Based Data Augmentation Method for Cement Clinker f-CaO and Its Effectiveness Evaluation
Xinyue YAO , Xuehong REN , Jiayuan YE, Munan ZHAI, Fuli CAO, Wensheng ZHANG, Hongtao ZHANG
Affiliations
  • China Building Materials Academy, Beijing 100024, Chian
  • Corresponding Author:
    REN Xuehong (1984-), female, Ph.D., Professor. E-mail:

    YAO Xinyue (1999-), female, Master candidate. E-mail:

出版时间: 2025-11-20 doi: 10.14062/j.issn.0454-5648.20250245
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高效、准确地实时预测游离氧化钙(f-CaO)含量对于实现水泥质量的稳定控制至关重要。针对生产过程中采样周期不一致引发的标签数据缺失、f-CaO含量预测精度低的问题,本研究提出并采用了半监督生成对抗网络(SSGAN)的方法,对f-CaO数据集进行数据增强,并借助门控递归单元模型,对输入方式及编码器等关键模块进行了消融实验,评估了其有效性。结果表明,SSGAN方法可以生成与真实数据分布高度一致的虚拟标签数据,显著扩充了训练样本的多样性和代表性,并使得下游预测任务的平均绝对误差、均方误差、均方根误差分别由0.24、0.08、0.29降至0.19、0.06、0.24,证实了SSGAN策略在降低预测误差和提升模型鲁棒性方面的显著作用,为材料数据增强研究提供了可借鉴的方法。

游离氧化钙  /  半监督生成对抗网络  /  时间序列  /  数据增强  /  回归预测  /  消融实验
Introduction

The free lime (f-CaO) content in cement clinker is a key indicator for evaluating calcination quality and process stability, directly influencing cement soundness and mechanical performance. Efficient and accurate real-time prediction of f-CaO content is essential for achieving stable cement quality control. In actual production, process parameter data are sampled at approximately 1-second intervals, while f-CaO content is typically measured once per hour, resulting in a severe scarcity of labeled data. This asynchronous sampling and data heterogeneity constrain both the scale and diversity of data available for supervised learning models, thereby reducing prediction accuracy and generalization capability. To address this challenge, this study proposes a method based on a semi-supervised generative adversarial network (SSGAN) to enhance the diversity and representativeness of the training dataset. Through evaluating its impact on the downstream f-CaO prediction task and conducting ablation studies, the research explores the feasibility of applying GANs to address the issue of asynchronous sampling between process parameters and offline measurement data.

Methods

This study proposes a data augmentation model based on a semi-supervised generative adversarial network (SSGAN), which generates virtual data resembling the actual data distribution to expand the training dataset and effectively enhance the model's learning capability under conditions of limited labeled data. The model consists of three main components: an encoder, a generator network, and a discriminator network. The encoder first extracts features from a small amount of process parameter data with real labels, which are then used as conditional inputs. The generator learns the latent features of the true label distribution through adversarial training and generates corresponding label values based on unlabeled process parameter data. The discriminator distinguishes between real and generated labels, guiding the generator to continuously optimize its generation strategy. As adversarial training progresses, the generator produces synthetic label data that closely resemble actual production data, while the discriminator continuously improves its understanding of the true data distribution and label characteristics.

Results and discussion

When the SSGAN model is trained to approximately 10 000 iterations, both the discriminator loss and the generator loss converge to near zero and remain stable, indicating that a balance has been achieved between the generator and discriminator, and the model has effectively learned the latent distribution features within the process parameters. Further analysis of the distribution of generated label values shows that they exhibit a distribution trend generally similar to that of the real labels. The model demonstrates strong learning and fitting capability within the primary range of label values, and the generated data are reliable. After introducing SSGAN for data augmentation, the MAE, MSE, and RMSE of the downstream GRU (Gate Recurrent Unit) model for f-CaO content prediction decreased from 0.24, 0.08, and 0.29 to 0.19, 0.06, and 0.24, respectively, indicating an improvement in the model's ability to predict outliers and extreme samples. Ablation studies revealed that removing the encoder, the GRU module, or introducing random noise led to significantly higher prediction errors, highlighting the critical role of temporal information and deep features embedded in the process parameters for generating high-quality label data. In particular, the encoder and its internal GRU module are essential for capturing long-range temporal dependencies and dynamic variation patterns.

Conclusions

To address the issue of label scarcity caused by the mismatch in sampling intervals between process parameters and f-CaO content measurements, this study proposes a data augmentation method based on SSGAN. By using an encoder to extract high-dimensional features and a generator to learn the latent distribution of true labels, the approach constructs a more diverse and representative training dataset. Ablation experiments were conducted to evaluate the effectiveness of each key module. The main conclusions are as follows: The introduction of the SSGAN-based data augmentation strategy effectively expanded the training dataset. The distribution of the generated label values closely matched that of the true labels, verifying the reliability of the synthetic data. The application of the SSGAN method significantly improved the accuracy of the downstream f-CaO content prediction task, with MAE on the test set decreasing from 0.24 to 0.19, MSE from 0.08 to 0.06, and RMSE from 0.29 to 0.24. Ablation experiments further revealed that introducing random noise, removing the encoder, or omitting the GRU module led to significantly increased prediction errors. This highlights the critical role of temporal information and deep features embedded in process parameters for generating high-quality label data. In particular, the encoder and its internal GRU module are essential for capturing long-range temporal dependencies and dynamic variation patterns.

free lime  /  semi-supervised generative adversarial network  /  time series  /  data enhancement  /  regression forecasting  /  ablation experiment
姚歆玥, 任雪红, 叶家元, 翟牧楠, 曹傅荔, 张文生, 张洪滔. 基于半监督生成对抗网络的水泥熟料游离氧化钙数据增强方法及其有效性评价. 硅酸盐学报, 2025 , 53 (11) : 3127 -3135 . DOI: 10.14062/j.issn.0454-5648.20250245
Xinyue YAO, Xuehong REN, Jiayuan YE, Munan ZHAI, Fuli CAO, Wensheng ZHANG, Hongtao ZHANG. A Semi-Supervised Generative Adversarial Network-Based Data Augmentation Method for Cement Clinker f-CaO and Its Effectiveness Evaluation[J]. Journal of the Chinese Ceramic Society, 2025 , 53 (11) : 3127 -3135 . DOI: 10.14062/j.issn.0454-5648.20250245
  • 国家自然科学基金双碳专项(52341202)
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doi: 10.14062/j.issn.0454-5648.20250245
  • 接收时间:2025-04-03
  • 首发时间:2026-10-21
  • 出版时间:2025-11-20
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  • 收稿日期:2025-04-03
  • 修回日期:2025-04-22
基金
国家自然科学基金双碳专项(52341202)
作者信息
    中国建筑材料科学研究总院有限公司,北京 100024

通讯作者:

任雪红(1984—),女,博士,教授。
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2种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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