• Proceedings of The Korean Society of Agricultural and Forest Meteorology Conference
• /
• 2019.08a
• /
• pp.305-306
• /
• 2019

• KIISE Transactions on Computing Practices
• /
• v.22 no.8
• /
• pp.393-398
• /
• 2016

Collective Adaptive System is an adaptive multi-agent system which accomplishes its goal by collaborating various agents. Because the collective property of the Collective Adaptive System is accomplished by the goal of the system being based on collaboration, testing the goal accomplishment and their interactions among heterogeneous agents is important. This paper presents a feasibility study of applying a model-based testing approach using task-based test model to a Collective Adaptive System. This paper describes additional information to be applied for Collective Adaptive System for future studies. To analyze our approach, we applied the proposed approach to a smart home system as a case study; our results indicated that we can systematically derive test cases to check whether the Collective Adaptive System successfully achieved its goals by modifying and extending the existing task model.

• The Korean Journal of Applied Statistics
• /
• v.34 no.3
• /
• pp.401-410
• /
• 2021

Popular in discriminant classification analysis, k-nearest neighbor classification methods have limitations that do not reflect the local characteristic of the data, considering only the number of fixed neighbors. Considering the local structure of the data, the adaptive nearest neighbor method has been developed to select the number of neighbors. In the analysis of high-dimensional data, it is common to perform dimension reduction such as random projection techniques before using k-nearest neighbor classification. Recently, an ensemble technique has been developed that carefully combines the results of such random classifiers and makes final assignments by voting. In this paper, we propose a novel discriminant classification technique that combines adaptive nearest neighbor methods with random projection ensemble techniques for analysis on high-dimensional data. Through simulation and real-world data analyses, we confirm that the proposed method outperforms in terms of classification accuracy compared to the previously developed methods.

• The Journal of the Korea Contents Association
• /
• v.21 no.8
• /
• pp.221-235
• /
• 2021

The purpose of this research is to examine the factors correlated with adjustment to collage life of students such as their academic achievement and college life satisfaction. This research focuses on the relationship between values and college life satisfaction based on perspectives that individual values have close affinity with life satisfaction. For analyses, we used 5-years of information of college admission and GPAs of all students, and survey data of 671 students of C university. The results are as follows; 1) academic achievement is the highest among those with comprehensive school report admission-within the enrollment quota, 2) college life satisfaction is pertaining to specific values such as belief in justice, cooperation, and trust, 3) college life satisfaction is related with the satisfaction of overall educational environment. The results emphasize the importance of education of public values to enhance adjustment to college life of students.

• Journal of the Korea Convergence Society
• /
• v.12 no.5
• /
• pp.109-119
• /
• 2021

With the coronavirus outbreak in China at the end of 2019, a global pandemic, most universities held non-face-to-face classes in the spring of 2020. One of the difficulties experienced by universities that abruptly conducted non-face-to-face education was management of the quality of education. Therefore, this study compared and analyzed how the existing indicators used to measure the quality of education in a non-face-to-face education environment changed. The results of the survey on the degree of adaptation and satisfaction of the lecture held at Handong University in the spring of 2020 were compared and analyzed with the previous data of the same lecturer. Overall, both class adaptation and satisfaction scores were found to be similar or slightly higher than before. Compared to lectures conducted by uploading recorded lectures, lectures conducted in real time had higher scores on all satisfaction survey questions. There was no significant change in satisfaction depending on the number of participants and the teacher's previous online lecture experience.

• The Journal of the Korea Contents Association
• /
• v.21 no.12
• /
• pp.536-545
• /
• 2021

The purpose of this study was to identify the differences of career barriers of multicultural adolescents by family income class. The study also examined the differences of social contextual factors affecting career barriers. A total of 1,265 cases from the sixth wave of Multicultural Adolescents Panel Study was used for the analysis. The main findings are as follows: First, multicultural adolescents showed significant differences in carrier barriers by income class. Second, low-income class adolescents were significantly affected by lack of mother involvement and academic adjustment, and middle-income class were affected by family support, academic adjustment, peer relationships, and adults helping at school. Study findings were discussed in terms of implications for practical intervention on career barriers of multicultural adolescents.

• Proceedings of the Korean Statistical Society Conference
• /
• 2002.05a
• /
• pp.105-112
• /
• 2002

얼굴인식 기술은 접촉에 대한 거부감이나 불편함이 없이 친숙하고 편리하게 사용자를 식별하고 인식할 수 있으며, 부가적인 센서 장비가 필요없다는 측면에서 개인 인증 및 보안 시스템으로서의 활용성이 매우 높다. 본 논문에서는 여러 가지 장점들을 지닌 얼굴 인식 시스템의 구현 사례를 실시간 얼굴 검출 기술과 특징 추출 기술, 인식 기술로 구분하여 소개한다. 개발된 시스템은 얼굴 검출을 위해서 색상과 에지 성분을 이용하는 복합 알고리즘을 적응하여 실시간 얼굴 탐지를 가능하게 하였고, 추출된 사용자의 고유 얼굴 정보는 최신 인식 기법의 하나인 Support Vector Machine으로 분류, 인식된다. 또한 시스템의 성능을 테스트하고, 실용화 가능성을 모색하기 위하여 하드웨어 임베디드 시스템의 설계 및 구현과정과 조명 및 환경 변화에 따른 시스템의 성능 변화를 객관적으로 검증하기 위하여 다양한 변화 조건을 고려한 한국인 표준 얼굴 데이터베이스를 구축 과정을 소개한다.

• Proceedings of the Korean Society for Quality Management Conference
• /
• 2004.04a
• /
• pp.419-424
• /
• 2004

부동산업 경영이란 부동산을 경영대상으로 하는 중개, 개발, 투자, 컨설팅 등 제 부동산업을 계획적이고 능동적이며 지속적으로 운영하는 과정, 기술, 과학적 운영 등을 말하는 것으로, 부동산상품과 그 상품을 다루는 인간에 대한 경영을 의미한다. 본 논문은 국내 부동산 시장의 토양 위에 선진부동산시스템을 도입하여 경영체질을 개선하고 경쟁력을 강화하고자 노력하고 있는 ERA-Korea 사를 조사기업으로 선정하여, 우리나라 부동산 기업의 경영활동에 경영패러다임의 변화를 적응시키고, 경영품질을 높이기 위하여 과학적 경영혁신 기법인 6 시그마를 적용하여 본 사례이다. 우선적으로 국내 부동산업의 취약점을 제시하고, 이를 극복하기 위한 부동산업 경영의 변화방향을 모색하였다. 다음으로 부동산 경영의 과학화를 위한 전략방향을 상세히 다루고, 이의 실현을 위한 기회도출을 구체적으로 제시하였다. 본 사례연구를 통하여 국내 부동산 기업에 새로운 경영품질관리 모델을 제시하고 궁극적으로 부동산기업의 경쟁력 강화를 위한 부동산 경영의 과학화 방법이 제시되었으면 한다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2023.05a
• /
• pp.42-44
• /
• 2023

신규 해상교통관제사의 직무 역량 향상을 위하여 시뮬레이션 교육은 가장 안전하고 효율적인 수단이다. 하지만 시뮬레이션 교육 시 한정된 시나리오로 인하여 각 항만의 실질적 특성 적응에 어려움을 보이는 실정이다. 이에 각 항만 별 특성에 맞는 여러 시나리오 개발에 필요한 개선 사항을 기초 연구 하였다. 먼저 주요 관제 사례를 수집하여 데이터관리를 하며, 수집된 데이터를 기반의 시뮬레이션 시나리오를 개발하는 것이다. 시나리오는 신규 해상교통관제사 교육뿐만 아니라 더 나아가 유관 및 민간 기관의 VTS 관련 연구에도 도움이 될 것이며, 시뮬레이션 개발의 한가지 지표로서 제안될 수 있다.

• Korean Journal of Construction Engineering and Management
• /
• v.6 no.1 s.23
• /
• pp.195-204
• /
• 2005

The construction failures can be decreased by continuously improving the construction process based upon the information of construction failures. Herein, the information of construction failures can be utilized as the key factor far identifying the ineffective process and providing the improved construction process that can prevent failures. The objective of this research is to suggest a model for improving construction process continuously by using the information of construction failures. An extended review and analysis of literatures related to the construction failure are performed to investigate the definition, type, cause, and lesson teamed of failure. This research also identifies that process modeling methodology and case-based reasoning are applicable to the construction process improvement, and then it suggests a framework of CIMCP(continuous improvement model of construction process based on the module of case-based reasoning such as case retrieval, case index, and case adaptation.