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Progress Seminar 2018.04.11 권순빈.

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Presentation on theme: "Progress Seminar 2018.04.11 권순빈."— Presentation transcript:

1 Progress Seminar 권순빈

2 연구 진행 상황 보고서 2주전 계획 연구 결과 문제점 및 대책 목표 및 계획 CPF 정형외과 혈당센서 모델 완성
Feature extraction 문제점 및 대책 목표 및 계획 논문용 결과 만들기 새로운 방법 시도해보기 금요일 미팅

3 CPF *KOSHA (한국안전보건공단) *Bauer, D. C., et al. "Classification of osteoarthritis biomarkers: a proposed approach." Osteoarthritis and Cartilage 14.8 (2006):

4 CPF 나쁨 이하의 subject들 제외 운동 Data의 숫자가 충분하지 않은 subject들 제외

5 CPF Model 1 Model 2 Model 3 Model 4 사용한 Feature
aEEmax, slope, age, sex, weight aEEmax, %fat, age, sex, weight aEEmax, slope, %fat, age, sex, weight aEEmax, age, sex, weight R 0.76 0.79 0.77 SEE 3.80 3.65 3.82 R_PRESS (Cross validation) 0.73 R_SEE (Cross validation) 4.07 3.85 3.86 4.06 Fitbit

6 CPF Model 1 Model 2 Model 3 Model 4 사용한 Feature
aEEmax, slope, age, sex, weight aEEmax, %fat, age, sex, weight aEEmax, slope, %fat, age, sex, weight aEEmax, age, sex, weight R 0.78 0.79 0.80 SEE 3.75 3.62 3.61 3.76 R_PRESS (Cross validation) 0.73 0.77 0.76 0.74 R_SEE (Cross validation) 4.04 3.82 3.85 4.01 Actiheart

7 정형외과 Early stance flex moment @ knee
Mid stance adduction knee First peak of adduction hip late stance extension knee  late stance internal rotational knee flexion angles during stance knee extension moments in early stance knee late stance internal rotation hip late stance dorsiflexsion ankle  maximum extension hip early swing phase peak flexion hip Mezghani, Neila, et al. "Mechanical biomarkers of medial compartment knee osteoarthritis diagnosis and severity grading: Discovery phase." Journal of biomechanics 52 (2017): *Bauer, D. C., et al. "Classification of osteoarthritis biomarkers: a proposed approach." Osteoarthritis and Cartilage 14.8 (2006):

8 정형외과 앞에서 Bold 표시 된 feature 들은 severity를 (KL grade 0~4) 구분이 되는 features
Bold 표시가 안된 features 는 KL grade 4와 나머지가 구분 되는 feature Height * Weight 으로 feature들을 normalization

9 정형외과 Knee flexion moment Knee adduction moment Knee flexion angle

10 정형외과 Hip rotation moment Hip extension moment Hip adduction moment
Ankle dorsiflexion moment

11 정형외과 Sensitivity Specificity AUC Mdl1 99.4% 75.5% 0.874 Mdl2 92.2%
88.8% 0.905 Mdl3 63.8% 80.4% 0.715 Mdl4 94.1% 74.3% 0.842 걸을 때 속도, 보폭 등 다른 feature 추가 예정 KL grade class 차이가 있음  추가 Data를 받을 예정


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