{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,19]],"date-time":"2026-02-19T15:35:42Z","timestamp":1771515342711,"version":"3.50.1"},"reference-count":31,"publisher":"ASME International","issue":"3","license":[{"start":{"date-parts":[[2022,12,9]],"date-time":"2022-12-09T00:00:00Z","timestamp":1670544000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.asme.org\/publications-submissions\/publishing-information\/legal-policies"}],"content-domain":{"domain":["asmedigitalcollection.asme.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2023,6,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>With the development of deep learning and information technologies, intelligent welding systems have been further developed, which achieve satisfactory identification of defective welds. However, the lack of labeled samples and complex working conditions can hinder the improvement of identification models. This paper explores a novel method based on metric-based meta-learning for the classification of welding defects with cross-domain few-shot (CDFS) problems. First, an embedding module using convolutional neural network (CNN) is applied to perform feature extraction and generate prototypes. The embedding module only contains one input layer, multiple convolutions, max-pooling operators, and batch normalization layers, which has the advantages of low computational cost and high generalization of images. Then the prototypical module using a prototypical network (PN) is proposed to reduce the influence of domain-shift caused by different materials or measurements using the representations in embedding space, which can improve the performance of few-shot welding defects identification. The proposed approach is verified on real welding defects under different welding conditions from the Camera-Welds dataset. For the K-shot classification on different tasks, the proposed method achieves the highest average testing accuracy compared to the existing methods. The results show the proposed method outperforms the model-based meta-learning (MAML) and transfer-learning method.<\/jats:p>","DOI":"10.1115\/1.4056219","type":"journal-article","created":{"date-parts":[[2022,11,11]],"date-time":"2022-11-11T08:08:22Z","timestamp":1668154102000},"update-policy":"https:\/\/doi.org\/10.1115\/crossmarkpolicy-asme","source":"Crossref","is-referenced-by-count":17,"title":["Metric-Based Meta-Learning for Cross-Domain Few-Shot Identification of Welding Defect"],"prefix":"10.1115","volume":"23","author":[{"given":"Tingli","family":"Xie","sequence":"first","affiliation":[{"name":"Georgia Institute of Technology George W. Woodruff School of Mechanical Engineering, , Atlanta, GA 30332"}]},{"given":"Xufeng","family":"Huang","sequence":"additional","affiliation":[{"name":"Huazhong University of Science & Technology School of Aerospace Engineering, , Wuhan 430074 , China"}]},{"given":"Seung-Kyum","family":"Choi","sequence":"additional","affiliation":[{"name":"Georgia Institute of Technology George W. Woodruff School of Mechanical Engineering, , Atlanta, GA 30332"}]}],"member":"33","published-online":{"date-parts":[[2022,12,9]]},"reference":[{"issue":"11","key":"2022120916050940700_CIT0001","doi-asserted-by":"publisher","first-page":"3365","DOI":"10.1007\/s00170-021-07398-4","article-title":"Research and Prospect of Welding Monitoring Technology Based on Machine Vision","volume":"115","author":"Fan","year":"2021","journal-title":"Int. J. Adv. Manuf. 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