• 대한가정학회지
• /
• 제41권4호
• /
• pp.21-33
• /
• 2003

The purpose of this study was to give early childhood educators information for differentiating internet information services related to early childhood education, and for making more positive educational effect with web information services. The main questions were there were and differences in the levels of information characteristics and the information contents according to the categories of those sites. The subjects were 47 internet sites frequently used by teachers and trained assistants rated them with rating scale. One way ANOVA and t-test were used for data analysis. The results showed that the levels of information characteristics dimensions had differences among the categories of sites. In addition to that the content quality of Portal sites were higher than those of other categories for children users, those of Portal sites and Daum Cafes were higher than corresponding quality of other sites for teachers.

• Nuclear Engineering and Technology
• /
• 제28권6호
• /
• pp.563-575
• /
• 1996

A total of 77 cases was identified to have human errors from a total of 255 trips occurred from 1978 to 1992 in Korean NPPs. The cases were analyzed to investigate how many human errors occurred on which work conditions to find out the areas of high priority for human error reduction. For the analysis of the 77 trip cases due to human errors, classifications were made for the following four categories ; plant systems, work situation, job types, and error types. Erroneous tasks critically influencing the plant trips were carefully identified and analyzed according to the classifications. Based on the results for the individual cases, the cases were counted for the classification items in each of the four categories, then also for the group of categories to investigate the relationships among the categories in aspects of human error occurrences. As results, the plant systems, work situations, and job types, and error types that are dominant in human errors related to the trips ore identified.

• 대한인간공학회지
• /
• 제15권1호
• /
• pp.27-38
• /
• 1996

A total of 77 unanticipated trip cases induced by human errors in Korean nuclear power plants were collected from the nuclear power plant trip event reports and analyzed to investigate the areas of high priority for human error reduction. Prior to this analysis, a classification system was made on the four task-related categories including plant systems, work situations, task types, and error types. The erroneous actions affecting the unanticipated plant trips were indentified by reviewing carefully the description of trip events. Then, the events with erroneous action were analyzed by using the classification system. Based on the results for the individual cases, human error occurrences were counted for each of the four categories, also for the selected pairs of categories, to find out the relationships between the two categories in aspects of human errors. As a result, the plant systems, work situations, and task types, and error types which are dominant in human error occurrences were identified.

• 품질경영학회지
• /
• 제44권1호
• /
• pp.43-60
• /
• 2016

Purpose: This paper reviews the papers on TQM issues which are published in the Journal of the Korean Society for Quality Management (KSQM) since 1965. The literature review is purposed to survey a variety of TQM issues for several categories. Methods: We divide all of TQM issues into 6 categories: ISO system, quality assurance, quality management theory, empirical study on quality management, quality awards, and quality management etc. Results: Dividing all of papers on TQM published in KSQM for 50 years into 6 categories, we provide a chronological roadmap for individual categories, and summarize the contents and contributions of surveyed papers. Conclusion: The review paper is expected to provide future direction to improve TQM theories and applications in manufacturing and service industries.

• Asia Marketing Journal
• /
• 제18권3호
• /
• pp.19-34
• /
• 2016

Product involvement is an important factor in consumer evaluation of co-branding. However, academic discussions over this factor have largely been neglected. This paper bridges this gap and investigates how product involvement moderates the strength of the reciprocal effect on each brand partner. We validate two theory-driven propositions by using a theoretical modeling approach. Proposition 1 explains that the negative reciprocal effect on partnering brands is stronger in the scenario of higher-involved categories than in lower-involved categories. Proposition 2 argues that the positive reciprocal effect on partnering brands can be more significant in the case of lower-involved categories than in higher-involved categories. To the best of our knowledge, we are the first to explore the influence of product involvement on reciprocal effects in the scenario of a moderately-incongruent co-branding alliance.

• 한국정밀공학회:학술대회논문집
• /
• 한국정밀공학회 2008년도 춘계학술대회 논문집
• /
• pp.275-276
• /
• 2008

• 한국도서관정보학회지
• /
• 제50권4호
• /
• pp.381-403
• /
• 2019

신문기사를 주제 분야별로 나누고, 분야 내에서 각각의 범주들은 기본 패싯과 결합하는 패싯 택소노미 모형을 개발하였으며 구축 방안을 제시하고 패싯 택소노미를 구축하는 연구를 수행하였다. 패싯 택소노미는 신문기사를 주제 분야(정치, 경제 분야 등)로 나누고 범주(정치 분야의 경우, 정치일반, 행정, 사법 등) 및 하위 범주를 기본 패싯과 각각 결합한다. 하위 범주는 더욱 하위 구분할 수 있다. 택소노미는 범주 간의 계층 관계를 가질 수 있으며, 범주-패싯은 예를 들어, "예술"에 대해 '사람', '행위', '행사', '시간', '장소' 등과 결합한다. 그리고 예술의 하위 범주인 '미술', '음악', '무용' 등은 '예술'과 계층 관계를 이루어 추론과 브라우징에 활용할 수 있도록 구성하였다. 또한, 범주-패싯 결합은 기본 패싯순으로 계층 구조를 갖는다. 한편, 시험용 어휘 구축은 '예술 분야'를 대상으로 용어 145어를 본 연구에서 다루는 모든 구성요소를 포함하는 패싯 택소노미를 구축하고, 디스플레이를 예시하였다.

• 한국도서관정보학회지
• /
• 제48권4호
• /
• pp.21-47
• /
• 2017

이 연구는 최근 주목을 받고 있는 인공지능에 관한 사회적 담론에 어떤 주제적인 특성이 있는지를 분석하는 것을 목적으로 한다. 우리 사회에 알파고 충격이 있었던 2016년부터 2017년 6월까지, 18개월 간 조선일보와 한겨레에 보도된 신문기사를 분석대상의 텍스트로 선정하였다. 전체 525건의 신문기사에 나타난 1,210건의 메시지들에 대해 주제범주를 코딩하였다, 구분한 주제는 7개 대범주, 62개 중범주, 그리고 하위의 소범주 주제들로 구성되었다. 인공지능의 담론을 구성하는 대범주는 AI 연구, AI 적용영역, AI기업(사업), AI 시대, AI 쟁점, 알파고 사건, AI 기타의 주제들로 파악되었다. 대범주로 코딩된 메시지들의 내용을 대상으로 세부적인 주제분석을 시도하였으며, 그 결과로 나타나는 주요한 특성은 다음과 같다. 첫째, 인공지능 담론을 구성하는 주제범주의 범위와 내용이 다양하고 복잡하였다. 둘째, 안전하고 유용한 인공지능을 구현하기 위해서는 일자리 소멸의 문제, AI의 오류나 오용에 따른 부작용의 문제 등과 같은 사회정책적인 쟁점들의 해결이 중요하다. 셋째, 인공지능의 시대에서 인간의 역할, 적합한 인재양성을 위한 교육체제의 혁신도 난이도가 높은 쟁점들이다.

• 환경영향평가
• /
• 제18권5호
• /
• pp.281-291
• /
• 2009

In Total Water Pollutant Load Management System of Korea, unit load approach based on land register data is currently used for the estimation of non-point pollutant load. However, a problem raised that land register data could not always reflect the actual land surface coverages which determine runoff characteristics of non-point pollution sources. As a way to overcome this, we tried to establish quantitative relationships between the aerial images (0.4m resolution) which reflect actual land surface coverages and the land registration maps according to the 19 major designated land-use categories in Kyeongan watershed. Analyses showed different relationships according to the land-use categories. Only a few land-use categories including forestry, road and river showed essentially identical and some categories such as orchard, parking lot and sport utility site showed no relationships at all between image data and land register data. Except for the two cases, all the other categories showed statistically significant linear relationships between image data and land register data. The analyses indicate that using high resolution aerial maps is a better way to estimate non-point pollutant load. If the aerial maps are not available, application of the linear relationships as conversion factors of land register data to image data could be an possible option to estimate non-point pollutant loads for the specific land-use categories in Kyeongan watershed.

• 응용통계연구
• /
• 제34권4호
• /
• pp.599-609
• /
• 2021

군집간의 개체 수의 차이가 큰 자료들을 불균형자료라고 한다. 불균형자료의 판별분석에서 다수 범주의 개체를 잘 분류하는 것 보다 소수 범주의 개체를 잘 분류하는 것이 더 중요하다. 그러나 개체 수가 상대적으로 작은 소수 범주의 개체를 개체 수가 상대적으로 많은 다수 범주의 개체로 오분류하는 경우가 많다. 본 연구에서는 이를 해결하기 위해 HDBSCAN과 SMOTE를 결합한 방법을 제안한다. HDBSCAN을 이용하여 소수 범주의 노이즈와 다수 범주의 노이즈를 제거하고 SMOTE를 적용하여 새로운 자료를 만들어낸다. 기존의 방법들과 성능을 비교하기 위하여 AUC와 F1 점수를 이용하였고 그 결과 대부분의 경우에 HDBSCAN과 SMOTE를 결합한 방법이 높은 성능 지표를 보였고, 불균형자료를 분류하는데 있어 뛰어난 방법으로 나타났다.