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전뇌(Whole Brain)치료 시 Field-in-Field Technique 적용에 관한 고찰
김보겸,이제희,정치훈,박흥득,Kim Bo Kyoum,Lee Je Hee,Jung Chi Hoon,Pack Heung Deuk 대한방사선치료학회 2005 대한방사선치료학회지 Vol.17 No.1
Purpose : Uniform dose distribution of the target volume is very important in the radiation treatment. We will evaluate the usefulness of Field-in-Field Technique use to get uniform dose distribution of the target volume and try to find Apply possibility out to a whole brain treatment patient of various thickness. Material and method : We compare the dose distribution when we applied Field-in-Field Technique and parallel opposed fields technique. establish the treatment plan to a phantom(acryl 16cm spheral phantom) and do the measurement, assessment use the TLD and Low sensitivity film. Also the assessment did Apply possibility of Field-in-Field Technique to 20 patient object of various thickness. Result : In the case to use the parallel opposed fields at the whole brain treatment $10-12\%$ high dose region appeared but reduce to $3-4\%$ lesses when we used the Field-in-Field technique. We could get similar numerical value the film and TLD measurement result also. The change of the dose distribution appeared to its ${\pm}1{\sim}2\%$ although it applied such Field-in-Field technique to various patient so that we were identical. Conclusion : We can get uniform dose distribution of in the treatment region if we apply the Field-in-Field technique at the whole brain treatment. Also alternate can play the role of the wedge filter and 3D compensator and We are thought by minimizing the obstacle to be happened due to the high dose region when radiation treatment.
실업팀 씨름선수들의 GRIT(그릿), 운동몰입, 경기력의 구조적 관계
김보겸(Kim, Bo-Kyum),이태현(Lee, Tae-Hyun) 한국체육과학회 2021 한국체육과학회지 Vol.30 No.2
The purpose of this study is to clarify the structural relationship between professional Ssireum players’ GRIT(Growth, Resilience, Intrinsic Motivation, Tenacity), exercise flow, and performance. The subjects of this study were 149 professional Ssireum players who are registered in Korea Ssireum Association. A survey questionnaire was used for data collection. Data were analyzed using SPSS 21.0 and AMOS 21.0 programs. The collected data were analyzed by frequency analysis, factor analysis, reliability verification, correlation analysis, and structural model analysis. Results derived from the researches based on the aforementioned methods and data analyses are as follows. First, professional Ssireum players’ GRIT had positive effect on exercise flow. Second, professional Ssireum players’ GRIT had positive effect on perfomance. Third, professional Ssireum players’ exercise flow had positive effect on performance.
포스터 : 3단계 확률기반 형태소 분석기를 이용한 한국어 품사 태거 구축 방법
김보겸 ( Bo Ggyum Kim ),이다니엘 ( Daniel Lee ),이재성 ( Jae Sung Lee ) 한국컴퓨터교육학회 2012 한국컴퓨터교육학회 학술발표대회논문집 Vol.16 No.1
한국어 품사 태거는 형태소 분석을 먼저 수행한 후 처리를 하며, 기존의 한국어 품사 태거는 형태소 분석과 태거를 따로 분리하여 처리를 하고 있다. 이 방법은 형태소 분석기에서 나온 모든 결과를 품사 태거가 처리함으로써 계산 복잡도가 매우 크다. 이에 본 논문은 3단계 형태소 분석 확률 모델을 기반으로 품사 태거를 함께 결합함으로써, 품사 태거의 부담을 줄이고 형태소 분석기가 통합된 모델을 제안한다. 모델의 성능 평가는 세종 계획 프로젝트에서 개발한 문어체 형태소 부착 말뭉치에 대해 실험을 하였고, 기분석 사전과 미등록어 처리를 사용하지 않았음 에도 1-best 결과에 대해 85.19%의 확도를 보였다.
김보겸(Bogyum Kim),이재성(Jae Sung Lee) Korean Institute of Information Scientists and Eng 2016 정보과학회논문지 Vol.43 No.4
Processing of unknown words such as proper nouns and newly coined words is important for a morphological analyzer to process documents in various domains. In this study, a segmentation and tagging method for unknown Korean words is proposed for the 3-step probabilistic morphological analysis. For guessing unknown word, it uses rich suffixes that are attached to open class words, such as general nouns and proper nouns. We propose a method to learn the suffix patterns from a morpheme tagged corpus, and calculate their probabilities for unknown open word segmentation and tagging in the probabilistic morphological analysis model. Results of the experiment showed that the performance of unknown word processing is greatly improved in the documents containing many unregistered words.