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Spark에서 SVM을 이용한 음성 틱 증상 감지시스템 개발
채수성,김인아,이규철 한국정보과학회 2016 데이타베이스 연구 Vol.32 No.3
Vocal tic is the disorder which repeats suddenly and rapidly certain sounds. In this paper, we develop detection system of vocal tic symptoms using speech recognition based on machine learning. In order to detect a variety of irregular vocal tic symptoms depending on people, we extract MFCC feature vectors and train the detection model using SVM algorithm. We perform the evaluation of the recognition model and it shows a precision of 93.07%. However, the process of training the detection model takes a lot of time. In order to reduce the train time, we use Apache Spark which is the in-memory distributed engine. The experimental result of the spark based train time is found to indicate a faster rate compared to Non-spark based train time. 음성 틱 장애는 갑작스럽고 빠르게 특정 소리를 반복하는 틱 증상을 가지는 장애이며, 음성 틱 증상의 조기치료 및 감지를 통해 뚜렛 증후군으로의 발전을 막아야 한다. 본 논문에서는 기계학습 기반의 음성인식 기술을 사용하여 자동적으로 음성 틱 증상을 감지하는 시스템을 개발한다. 환자에 따라 다양하고 불규칙적인 음성틱 증상을 감지하기 위해 MFCC 특징 벡터 값을 추출하였고, SVM 알고리즘을 통해 감지 모델을 생성하였으며, 실험 평가 결과 93.07%의 정밀도를 확인하였다. 또한 감지 모델 생성 과정 시 많은 시간이 소요되는 것을 고려하여, 감지 모델 생성 과정에서 발생하는 지연 시간을 감소시키기 위해 본 논문에서는 인 메모리 분산처리 엔진인 Spark를 사용하여 감지 모델 생성 시간을 약 4배가량 감소시켰다.
편마비 환자들의 환측 슬관절 중심으로 등속성 및 등장성 운동 비교연구 -Cybex II+ Isokinetic Dynamometer를 이용한 평가를 기준으로-
채수성,전건식,문성기,Chae, Soo-Sung,Jun, Gun-Sik,Moon, Sung-Ki 대한물리치료과학회 1994 대한물리치료과학회지 Vol.1 No.1
The purpose of this study was to find out the effect of muscular strength of quadriceps, hamstring of knee joint to isokintic, isotonic exercise treatment in stroke. Data was collected from 80 stroke from January 10. 1994 to april 10, 1994 in a Chungnam university hospital. The results were as follows; 1. Peak torque was higher isokinetic than isotonic excercise group both in quadriceps and hamstring of knee joint, 6 weeks, 8 weeks 10 weeks showed statistically significant in isokinetic exercise training group. 2. Total work was high isokinetic than isotonic exercise group both in quadricaps and hamstring of knee joint, 10 weeks 12 weeks showed statistically significant in isokinetic exercise training group. 3. Average peak torque and total work was higher isokinetic than isotonic excercise group both in quadriceps and hamstring of knee joint, showed statistically significant in isokinetic exercise training group (p<0.05).(p<0.01). Isokinetic and isotonic exercise treatment were needed for sutable walk training in stroke. But I think that better method was isokinetic exercise treatment in muscular strength and endurance.
김영기,채수성 의과학연구소 1993 全北醫大論文集 Vol.17 No.2
Perilymph fistula(PF) is defined as the pathologic escape of perilymph from the oric capsule. PF occurs in a patients after various traumatic experiences - lifting, straining, coughing or other vigorous activities, barotrauma, stapedectomy and perilymphatic hypertension etc. Patients with PF suffer from sudden or fluctuating sensorineural hearing loss, vertigo or dysequilibrium, and tinnitus. Its symptoms are those of a cochlear lesion and / or vestibular lesion, depending on the affected region. No diagnostic procedure exists, except for surgical exploration, which either establishes or excludes the diagnosis of a perilymph fistula. Surgical exploration may not be totally reliable since fistulas can leak intermittently. The goal of management is to restablish continuity of the fistulous membrane whether by natural healing or surgical repair. The author reports 2 cases of PF following trauma with review of the literature.
척수 손상 환자와 정상 성인과의 견관절 주위근에 대한 등속성 근력 평가 비교
문성기,채수성,Moon, Sung-Ki,Chae, Soo-Sung 대한물리치료과학회 1995 대한물리치료과학회지 Vol.2 No.1
The purpose of this studied was the comparison with shoulder girdle muscles of isokinetic evaluation in the spinal cord injury group, and adults normal group. Data was collected from 20 cases spinal cord injury from January 10. 1994 to February 10, 1995 in a Chungnam University hospital and adults normal group to 20 cases. The results were as follows; 1. Low speeds peak torque was higher spinal cord group than normal group shoulder girdle muscles of flexor, extensor, external rotator showed statistically significant in spinal cord injury group(p<0.05). Against normal groups shoulder girdle muscles of internal rotator showed statistically significant in normal group(p<0.05). 2. High speeds peak torque was higher spinal cord group than normal group shoulder girdle muscles of flexor, extensor, showed statistically significant in spinal cord injury group(p<0.05). 3. High speeds total work was higher spinal cord group than normal group shoulder girdle muscles of flexor, extensor, external rotator showed statistically significant in spinal cord injury group(p<0.05).(p<0.01). Against normal group shoulder girdle muscles of internal rotator showed statistically significant in normal group(p<0.05).
황병연,채수성 의과학연구소 1990 全北醫大論文集 Vol.14 No.4
Fracture of the tibial shaft is the most common fracture of the long bones. The treatment of fractures of the tibial shaft has become one of the most controversal subjects in orthopedic surgery. 23 Patoents with fracture of the tibial shaft were treated with Ender nails at the Department of orthopedic surgery, Chonbuk National University Hospital from December 1986 to June 1990.