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Quantile regression-enriched event modeling framework for dropout analysis in high-temperature superconductor manufacturing.

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Title: Quantile regression-enriched event modeling framework for dropout analysis in high-temperature superconductor manufacturing.
Authors: Li, Mai1 (AUTHOR), Lin, Ying1,2 (AUTHOR) ylin58@uh.edu, Feng, Qianmei1,2 (AUTHOR), Fu, Wenjiang2,3 (AUTHOR), Peng, Shenglin1 (AUTHOR), Chen, Siwei4 (AUTHOR), Paidpilli, Mahesh2,5,6 (AUTHOR), Goel, Chirag2,5,6 (AUTHOR), Galstyan, Eduard2,5,6 (AUTHOR), Selvamanickam, Venkat2,5,6 (AUTHOR)
Source: Journal of Intelligent Manufacturing. Jun2025, Vol. 36 Issue 5, p3009-3030. 22p.
Subjects: High temperature superconductors, Critical currents, Poisson processes, Manufacturing processes, Feature selection
Abstract: High-temperature superconductor (HTS) tapes have shown promising characteristics of high critical current, which are prerequisites for applications in high-field magnets. Due to the unstable growth conditions in the HTS manufacturing process, however, the frequent occurrences of dropouts in the critical current impede the consistent performance of HTS tapes. To manufacture HTS tapes with large scale, high yield, and uniform performance, it is essential to develop novel data analysis approaches for modeling the dropouts and identifying the related important process parameters. Conventional methods for modeling recurrent events, such as the point process, require the extraction of events from quality measurements. As the critical current is a continuous process, it may not comprehensively represent the drop patterns by transforming the time-series measurements into a set of events. To solve this issue, we develop a novel quantile regression-enriched event modeling (QREM) framework that integrates the non-homogeneous Poisson process for modeling the occurrence of dropouts and the quantile regression for capturing the drop patterns. By incorporating the feature selection and regularization, the proposed framework identifies a set of significant process parameters that can potentially cause the dropouts of HTS tapes. The proposed method is tested on real HTS tapes produced using an advanced manufacturing process, successfully identifying important parameters that influence dropout events including the substrate temperature and voltage. The results demonstrate that the proposed QREM method outperforms the standard point process in predicting the occurrence of dropouts. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Intelligent Manufacturing is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Quantile regression-enriched event modeling framework for dropout analysis in high-temperature superconductor manufacturing.
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  Data: <searchLink fieldCode="AR" term="%22Li%2C+Mai%22">Li, Mai</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lin%2C+Ying%22">Lin, Ying</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> ylin58@uh.edu</i><br /><searchLink fieldCode="AR" term="%22Feng%2C+Qianmei%22">Feng, Qianmei</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fu%2C+Wenjiang%22">Fu, Wenjiang</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Peng%2C+Shenglin%22">Peng, Shenglin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+Siwei%22">Chen, Siwei</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Paidpilli%2C+Mahesh%22">Paidpilli, Mahesh</searchLink><relatesTo>2,5,6</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Goel%2C+Chirag%22">Goel, Chirag</searchLink><relatesTo>2,5,6</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Galstyan%2C+Eduard%22">Galstyan, Eduard</searchLink><relatesTo>2,5,6</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Selvamanickam%2C+Venkat%22">Selvamanickam, Venkat</searchLink><relatesTo>2,5,6</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Intelligent+Manufacturing%22">Journal of Intelligent Manufacturing</searchLink>. Jun2025, Vol. 36 Issue 5, p3009-3030. 22p.
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  Data: <searchLink fieldCode="DE" term="%22High+temperature+superconductors%22">High temperature superconductors</searchLink><br /><searchLink fieldCode="DE" term="%22Critical+currents%22">Critical currents</searchLink><br /><searchLink fieldCode="DE" term="%22Poisson+processes%22">Poisson processes</searchLink><br /><searchLink fieldCode="DE" term="%22Manufacturing+processes%22">Manufacturing processes</searchLink><br /><searchLink fieldCode="DE" term="%22Feature+selection%22">Feature selection</searchLink>
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  Data: High-temperature superconductor (HTS) tapes have shown promising characteristics of high critical current, which are prerequisites for applications in high-field magnets. Due to the unstable growth conditions in the HTS manufacturing process, however, the frequent occurrences of dropouts in the critical current impede the consistent performance of HTS tapes. To manufacture HTS tapes with large scale, high yield, and uniform performance, it is essential to develop novel data analysis approaches for modeling the dropouts and identifying the related important process parameters. Conventional methods for modeling recurrent events, such as the point process, require the extraction of events from quality measurements. As the critical current is a continuous process, it may not comprehensively represent the drop patterns by transforming the time-series measurements into a set of events. To solve this issue, we develop a novel quantile regression-enriched event modeling (QREM) framework that integrates the non-homogeneous Poisson process for modeling the occurrence of dropouts and the quantile regression for capturing the drop patterns. By incorporating the feature selection and regularization, the proposed framework identifies a set of significant process parameters that can potentially cause the dropouts of HTS tapes. The proposed method is tested on real HTS tapes produced using an advanced manufacturing process, successfully identifying important parameters that influence dropout events including the substrate temperature and voltage. The results demonstrate that the proposed QREM method outperforms the standard point process in predicting the occurrence of dropouts. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Intelligent Manufacturing is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Text: English
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        Type: general
      – SubjectFull: Critical currents
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      – SubjectFull: Poisson processes
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      – SubjectFull: Manufacturing processes
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      – SubjectFull: Feature selection
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      – TitleFull: Quantile regression-enriched event modeling framework for dropout analysis in high-temperature superconductor manufacturing.
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              M: 06
              Text: Jun2025
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