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레이블 교체 방식 기반 지식그래프 부정 샘플링 및 지식 그래프 학습 모델
이중훈,김진술,오승민,김광기,한민수 한국디지털콘텐츠학회 2024 한국디지털콘텐츠학회논문지 Vol.25 No.11
As modern network infrastructures become increasingly complex, the need for advanced technologies and countermeasures is growing. Traditional fault analysis methods often rely on specific thresholds to predict anomalies, which do not fully leverage the structural information within the network. To address this limitation, we propose a method that converts time-series data into a knowledge graph to learn network relationship information. Negative sampling is employed to enhance the model's generalization performance by updating the features of each node and learning their interrelationships. This approach reduces the bias toward the 'normal' state, which is more prevalent in the data, and improves performance by exposing the model to a wider range of scenarios. Consequently, the ability to distinguish similar network faults has significantly improved, allowing for the consideration of various factors beyond immediate causes, leading to overall operational enhancements.
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이중훈,이재호,신희석,윤철호,오민균,권수현 대한재활의학회 2008 Annals of Rehabilitation Medicine Vol.32 No.6
Objective: To examine pressure pain threshold (PPT) on several skeletal muscles in upper extremity, trunk, and lower extremity by using electronic pressure algometer and to evaluate it's interrater reliability, reproducibility, difference between gender and dominance, correlation with body mass index, and comparison among each muscles.Method: Forty healthy adults (male 27, female 13) were examined by two raters and reexamined in the same order after a rest of 10 minute. PPT at the splenius capitis, upper trapezius, infraspinatus, lumbar paraspinal muscle, extensor carpi radialis, vastus medialis, and gluteus medius muscles of both side was measured by medical electronic algometer. Rate of force application was approximately 2 lb/sec. Body mass index (BMI) was estimated from the individual's body weight by the square of their height.Results: There were no statistical differences of PPTs at all muscles between two raters, between two test with time interval, and between dominant and nondominant side, respectively. PPT in man was higher than female at all muscles. There was significant correlation between BMI and PPT at lumbar paraspinal muscle, vastus medialis, and gluteus medius only in male. PPT was highest at lumbar paraspinal muscle and lowest at splenius capitis.Conclusion: Electronic pressure algometer is a reliable tool for evaluation of PPT which has high interrater reliability and high reproducibility and is not affected by dominance and location of muscles. Therefore, it is a useful clinical tool to compare PPT before and after treatment and to study the mechanism of musculoskeletal pain research program.
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이중훈,신희석,윤철호,권수현,이은신 대한재활의학회 2008 Annals of Rehabilitation Medicine Vol.32 No.4
Pyogenic sacroiliitis is a rare infection that may accompany psoas muscle abscess with vague clinical presentation, which present a diagnostic challenge requiring a high index of suspicion. We report a 48-year-old male, diagnosed pyogenic sacroiliitis with psoas abscess caused by Streptococcus intermedius and Sphingomonas paucimobilis. Magnetic resonance imaging showed multiloculated rim-enhancing lesion in right psoas muscle and joint effusion with osteomyelitis around sacroiliac joint. Intravenous antibiotics were administered after ultrasonographically guided abscess aspiration. Surgical drainage was done and his fever and symptom gradually subsided.
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