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이미지 자료에 대한 고등학교 인공지능 수학 학습자료 개발과 적용에 관한 연구
황병남,조민식 학습자중심교과교육학회 2024 학습자중심교과교육연구 Vol.24 No.1
Objectives The purpose of this study is to develop teaching and learning materials for math classes for matrix with artificial intelligence, to promote the content, methods, and connection between theory and practice of learning materials for high school students, and to understand educational effects as math education materials. Methods We developed teaching and learning materials that can explore the image data classification principle of artificial neural networks using matrix multiplication and the MNIST dataset in the representation and processing of image data using matrices, and applied and analyzed the developed learning materials for 20 high school students to complete the learning materials. Results The developed materials were useful for students to intuitively understand the principles of artificial intelligence and matrix concepts, and to appreciate the mathematical usefulness and value while applying them to actual image data processing. In addition, logical thinking was stimulated and students could learn mathematics in a developmental way during the learning process. Conclusions The process and results of this study are expected to provide implications for future approaches and material development for artificial intelligence math learning.
황병남,이승훈,이정근,이재봉 대한악안면성형재건외과학회 2000 Maxillofacial Plastic Reconstructive Surgery Vol.22 No.2
This study was performed to investigate the characteristics of soft tissue profile of the class III malocclusion and to test the yardstick far differential diagnosis between surgical and orthodontic patients Initial lateral cephalograms of orthodontic group(30 patients) that have acceptable occlusion and profile by orthodontic treatment alone and surgical group(30 patients) that have favorable occlusion and profile by combined surgical-orthodontic treatment were selected in Ajou university hospital. Powell and Burstone II analysis were made on the tracing. Descriptive, comparative, factor, cluster, and discriminant analysis were carried out with computer program. The results were as followings : 1.Patients who received surgery had a more concave profile and a longer lower facial height than patients who received orthodontic treatment alone. 2.Nasolabial angle, ratio of vertical height, and mentolabial sulcus were significantly different at the 5% level. And facial protuberance, upper lip protuberance, mentocervical angle, nasofrontal angle, nasomental angle, mandibular vertical height, angle between cervix and lower face, ratio of mandibular vertical height divided by cervical depth, ratio of vertical height between upper and lower lip, and maxillary protuberance were significantly different at the 1% level. 3.8 factors were extracted and factor 2, 3, and 8 showed significant differences by factor analysis. 4.Orthodontic group (25) and surgical group (35) were classified by cluster analysis. 5.Discriminant function was D = 0.079Nasomental angle + 0.081Sn-Gn + 3.343Sn-Gn/C-Gn + 1.734Sn-St/St-Me'-26.460, and cutting score was 0, so we can discriminate that orthodontic group has the score above 0, and surgery group below 0. And 91.7% of original grouped cases were correctly classified.
황병남,이승훈,이정근,이재봉,Hwang, Byung-Nam,Rhee, Seung-Hoon,Lee, Jeong-Keun,Lee, Jai-Bong 대한악안면성형재건외과학회 2000 Maxillofacial Plastic Reconstructive Surgery Vol.22 No.2
This study was performed to investigate the characteristics of soft tissue profile of the class III malocclusion and to test the yardstick far differential diagnosis between surgical and orthodontic patients. Initial lateral cephalograms of orthodontic group(30 patients) that have acceptable occlusion and profile by orthodontic treatment alone and surgical group(30 patients) that have favorable occlusion and profile by combined surgical-orthodontic treatment were selected in Ajou university hospital. Powell and Burstone II analysis were made on the tracing. Descriptive, comparative, factor, cluster, and discriminant analysis were carried out with computer program. The results were as followings : 1. Patients who received surgery had a more concave profile and a longer lower facial height than patients who received orthodontic treatment alone. 2. Nasolabial angle, ratio of vertical height, and mentolabial sulcus were significantly different at the 5% level. And facial protuberance, upper lip protuberance, mentocervical angle, nasofrontal angle, nasomental angle, mandibular vertical height, angle between cervix and lower face, ratio of mandibular vertical height divided by cervical depth, ratio of vertical height between upper and lower lip, and maxillary protuberance were significantly different at the 1% level. 3. 8 factors were extracted and factor 2, 3, and 8 showed significant differences by factor analysis. 4. Orthodontic group (25) and surgical group (35) were classified by cluster analysis. 5. Discriminant function was D = 0.079Nasomental angle + 0.081Sn-Gn + 3.343Sn-Gn/C-Gn + 1.734Sn-St/St-Me' -26.460, and cutting score was 0, so we can discriminate that orthodontic group has the score above 0, and surgery group below 0. And 91.7% of original grouped cases were correctly classified.