• 한국멀티미디어학회논문지
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• 제9권9호
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• pp.1131-1138
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• 2006

본 논문에서는 지하에 매설된 통신 관로를 레이저 투영 영상 분석에 의해 검사하는 새로운 기법을 제안한다. 레이저 다이오드, 발광 다이오드와 카메라로 구성된 장비가 관내에 직접 투입되며, 레이저 다이오드는 관벽에 투영 영상을 생성하고 발광 다이오드는 내부 조명 장치로 사용되며, 카메라는 관로 영상을 획득한다. 카메라에서 전달된 다양한 조건의 관로 영상에 대해 투영 영역을 정확히 분할하기 위하여, 새로운 객차 모델과 다중 임계치 기법을 이용한다. 분할된 투영 고리의 형상은 최소 직경과 푸리에 표기자에 의해 표현하여 관로의 상태를 규칙에 기반하여 분류한다. 국부적인 최소 직경과 전역적인 푸리에 표기자를 모두 사용하므로 파손된 관로, 찌그러진 관로 등의 다양한 조건에서 높은 분류 성능을 나타낼 수 있으며, 여러 상태의 영상에 대한 실험 결과는 2% 미만의 오분류로 높은 성능을 나타냈다.

• 한국정보통신학회논문지
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• 제10권3호
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• pp.608-613
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• 2006

전자상거래의 활성화로 인하여 인터넷상에 많은 쇼핑몰이 존재한다. 상품 추천 시스템은 고객이 원하는 정보를 얻기 위해 소요되는 시간과 노력을 절약하기 위해 필요성이 강조되고 있다. 본 논문에서는 고객의 접근 로그 데이터를 분석하기 위해 데이터 마이닝 기법 중 분류 기법을 이용하였다. 접근 로그 데이터는 고객이 쇼핑몰에 접근하였거나 접근하여 상품을 구매한 내역 등에 관한 정보를 포함하고 있다. 제안한 시스템은 두 단계로 구성한다. 제 1 단계는 데이터 필터링 모듈과 고객이 접근한 웹 페이지들 사이의 관련성을 추출하는 모듈로 구성하고, 제 2단계는 개인화 모듈과 규칙 생성 모듈로 이루어져 있다. 결과적으로 제안한 시스템은 고객의 패턴을 파악하는데 있어서 고객에게 추천하는 웹페이지들을 등급화하여 제시함으로써 고객에게 상품 추천을 효율적으로 할 수 있다.

• 한국의상디자인학회지
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• 제11권1호
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• pp.53-62
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• 2009

Through the result of the investigation on costumes in Bulgarian regions, the main factors for the formation of Bulgarian folk costume and its kinds and history have been found out so far as follows. Alhtough varying according to the district and climate, Bulgarian folk costumes have some general features determined by the material, the pattern, the application. For women, Bulgarian costume consists of a white shirt, a single or double apron unique depending on each region(Bruchnick), a basic dress called a tunic (Soukman), and an open-tunic typed coat (saya). The main factors for the formation of Bulgarian folk costume have been under the influence of natural and environmental features and historical streams resulting from its geographical location. Bulgaria is agriculture-oriented society based on a continental climate. Accordingly, as for the classification of costumes, body-fit clothes, such as shirts and jackets which developed in Europe and fit the body shape, have featured in Bulgaria. Besides, Bulgaria was under the rule of Turk for a long time at the end of the Middle Age. Having been influenced a lot those days, its folk costume shows Turkish elements now. With geographical features, it was found that the southern area was influenced most by Turkey and Greece, and the types of folk costumes in Europe developed mainly from the northern area. The adaptation of traditional costume forms to the new cultural and progressive principles of appeal nowadays needs knowledge, as well as feeling. Finding the right measure and proportions of using old ethnic elemints in contemporary clothing is the prerequisite of successful design.

• 한국지능시스템학회논문지
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• 제19권2호
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• pp.212-217
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• 2009

특정 분야의 용어를 표현하는 전문용어 사이의 계층관계를 학습하는 방법은 규칙기반학습방법, 통계기반학습방법 등이 있다. 본 논문에서는 문서에서 추출된 퍼지용어 정보를 바탕으로 한 온톨로지 구조를 카테고리화하여 퍼지용어의 전문성을 이용하여 주어진 퍼지용어의 상위어 후보를 레벨화한 후 퍼지용어 의미유사도를 계산하여 선택된 후보들 중에서 최적의 상위어후보를 결정한다. 즉, 퍼지용어의 전문성을 레벨화하기 위한 확장된 AHP방법은 퍼지용어사이의 비교를 통해 가중치나 상대적 중요성을 결정한 후 퍼지집합의 Min연산자와 다이스계수, Min+다이스계수방법들을 비교한다. 이 방법들은 퍼지용어 의미유사도에 따라 문서들이 가지는 의미론적 내용과 관계의 식별을 바탕으로 보다 더 정확하게 문서를 분류할 수 있고 자연어처리 등 많은 분야에 활용될 수 있을 것이다.

• Industrial Engineering and Management Systems
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• 제14권4호
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• pp.335-346
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• 2015

The electronic commerce site (EC site) has become an important marketing channel where consumers can purchase many kinds of products; their access logs, including purchase records and browsing histories, are saved in the EC sites' databases. These log data can be utilized for the purpose of web marketing. The customers who purchase many product items are good customers, whereas the other customers, who do not purchase many items, must not be good customers even if they browse many items. If the attributes of good customers and those of other customers are clarified, such information is valuable as input for making a new marketing strategy. Regarding the product items, the characteristics of good items that are bought by many users are valuable information. It is necessary to construct a method to efficiently analyze such characteristics. This paper proposes a new latent class model to analyze both purchasing and browsing histories to make latent item and user clusters. By applying the proposal, an example of data analysis on an EC site is demonstrated. Through the clusters obtained by the proposed latent class model and the classification rule by the decision tree model, new findings are extracted from the data of purchasing and browsing histories.

• 대한인간공학회지
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• 제30권3호
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• pp.427-435
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• 2011

Objective: The objective of this study was to evaluate a work of building cleaners using the ergonomic methods. Background: Previous studies about cleaning worker describe typical physical demands of this work. They found that the most significant risk factors associated with the physical work of cleaners are static loads and repetitive movements and high output of force. Method: A head of ergonomics estimation was work analysis(define of combined task, work tool, work time and frequency of combined task) and posture analysis of worker. Results: The results showed that combined task of building cleaners was classification sweeping, mopping(wet), mopping(oil), moving barrels/carts, dumping trash bags, scrubbing, arrangement of cleaning tool, arrangement of circumferential, moving of cleaning tool, and waiting. The work time of combined task such as mopping(wet) and scrubbing indicated high ratio. The posture analysis of building cleaners indicated high value in bending of the head, lower arm, and hands. Conclusion: The findings appear to indicate that building cleaner were related to high risk of work-related musculoskeletal disorders. So, building cleaner would be required an interventional strategy, improvement of cleaning tools and working environment. Application: If ergonomics rule can be integrated into existing cleaning tools and work environments, the risk of occupational injuries will be reduced.

• 대한인간공학회지
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• 제30권3호
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• pp.419-426
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• 2011

Objective: The objective of this study was to evaluate a work of guards, using an ergonomic method(work analysis and posture analysis). Background: Most studies about guards were conducted in the field of medical, problems of shift, and the physical problems of old workers and social problems. But, guards consist of vulnerability group so it needs an ergonomic research in musculoskeletal disorders. Method: A head of an ergonomic estimation was work analysis(determination of combined task, work tool, work time and frequency of combined task) and posture analysis(upper body and lower body) of workers based on the video. Results: The result showed that combined task of guards was classification of patrolling, security, cleaning and waiting. The security indicated the highest ratio in the work time of combined tasks. The results of posture analysis for guards indicated high value in neutral. But, lower arm indicated high value in bending(left: 59%, right: 50%). Conclusion: The results of ergonomic methods indicated that guards' physical work load was not high during work, but comfortable work environment would be required for old guards. Application: If an ergonomic rule can be integrated into existing work environments, the risk of occupational injuries and stress will be reduced.

• 한국ITS학회 논문지
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• 제16권6호
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• pp.1-15
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• 2017

최근 국제적인 테러 위협이 불특정 다수를 대상으로 발생하고 있으며, 이러한 위협에서 시민을 보호하기 위한 다양한 대책이 논의 중이다. 저렴해진 센서 기술을 활용한 사전 감시 시스템에 대한 요구가 높아지고 있으나, 보행 궤적의 고유 특성 검출 및 상세 분석 연구가 미비한 실정이다. 본 연구에서는 상용화된 보행 동선 솔루션을 활용하여, 삼성역 개찰구에서 코엑스와 직접 연결되는 연결 통로 (3-6번 출구 근처) 일대의 보행 동선 궤적 조사를 수행하였다. 조사된 궤적 자료를 바탕으로, 궤적 자료의 정규화 기법, Clustering 방법을 중심으로 보행 궤적을 유형화하고 배회 동선을 추출하는 분석 방법론을 제시하였다. 분석 결과, 동일 군집내에서 유사성이 크게 떨어지는 보행 궤적의 검출 가능성을 검증하였다.

• 농촌지도와개발
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• 제18권3호
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• pp.351-384
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• 2011

The purpose of this study is to look at the case of the German compensation system for farmers' accidents and to build a basic scheme in our country's compensation system for farmers' accidents. When you view examples of Germany, the social insurance scheme for farmers accidents in korea should be design as an independent institution from the existing industrial accident insurance, and it comes to relationships with other social insurance system, preferably with complementary personalities. A general rule of the compensation system applies to all farmers in principle but the coverage limits part-time farmers. Financial burden consists of the mix of insurance premium and state aid. The type and level of benefits is similar to the current industrial accident insurance, which give priority to places on economic security for keeping farmworks, such as cost for using temporary farmers, rather than income loss. In terms of financial system, pay-as-you-go system would be better because of immediate payment with the introduction of the compensation system. The compensation system might be managed and administrated by the existing nationwide organization. Of course, for operating of system review and further research on the technical details such as premium issues and funding problems of government support, the exact classification of the target coverage, premiums based on estimated income for the farmers' estimation, the exact statistical data on the accumulation of agricultural disaster is needed.

• 한국한의학연구원논문집
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• 제8권1호
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• pp.75-92
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• 2002

The purpose of this study was to investigate the difference of the morphological diagram by Sasang Constitutions and compare with Huh's morphological diagram, a theory based on the Four Cho Theory(四焦設) by Lee Je-Ma. We classified the Sasang Constitutions of 104 Korean College Students(average age 23.81) using QSCC II. Before measuring of morphologic diagrams, we exert the subjects to take supine position on the bed, and make it a rule that our staffs mesure each people directly. The 50% of the total subjects was Soeumin, 26.9% was Soyangin and 23.1% was Taeumin, our study shows the higher percentage than the other studies in Soeumin. The results as follows ; In the cases of man, Taeumin have more developed Low-Middle Cho(the interval between stomach line and Navel line) than other constitutions, whereas Soeumin has more developed Low cho(the interval between Navel line and Ilium line). In the cases of woman, there is no significant difference of Huh's morphology diagram among three Sasang constitutions. We analyzed the difference of obesity among sasang constitutions, and we found that the BMI(Body Mass Index$(Kg/m^2)$) of Taeumin was significantly higher than other constitutions in male. But there was no significant difference among Sasang constitutions in female. We have not found the exact accordance between the real measurement and Huh's Theory. But for man, there are several statistically significant results, indicating the usefulness of the Huh's Morphological Diagramming theory on the discriminating ability of Sasang Constitutions Classificaton. So this results suggest that the use of the Huh's theory should be improved in the classification of the Sasang Constitutions, considering the difference of morphology by sex.