• Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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• v.9 no.5
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• pp.565-575
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• 2019

This study aimed to examine the influence of physical environment, microclimate, and comfort on sustaining outdoor activities. This study has identified the main factors that influence sustaining outdoor activities as physical environment, comfort in the physical environment, microclimate and microclimate comfort. For analysis, the study conducted the investigation on pedestrian walkability during spring, summer and winter of the year 2017. The microclimate levels were also recorded at the same time. The method of logit regression analysis was used to analyze these outcomes. The result showed that the comfort and safety of the physical environment as well as the ideal climatic conditions, in terms of temperature, wind level, and solar insolation, were related to sustaining outdoor activities. Also, walking and shopping in the physical and climatic environment were the factors that were found to be more influenced than the act of remaining in a place and forming conversations.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.19 no.1
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• pp.131-156
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• 2008

The objective of this paper is to understand the present status of public library space management through research on the actual condition and obtain/indicate preliminary data on public library building program. For this purpose, questionnaires were sent to 524 public libraries in Korea, and 167 cases(31.87% of them) answered were analysed. It was revealed that insufficiency of space, services/facilities for information disadvantaged groups and services/facilities for community center and location requirements for libraries have a lot to be improved.

• Journal of KIISE:Software and Applications
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• v.26 no.6
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• pp.752-762
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• 1999

멀티미디어 정보 검색 응용에 있어서 관련성 있는 멀티미디어 문서를 검색하기 위해 이미지에 대한 내용-본위 검색이 필수적이다. 이를위하여 본 논문에서는 이미지를 몇 개의 인식 가능한 심볼 즉, 아이콘으로 표현하고, 주어진 문서를 대표하는 값으로 받아들여 색인을 한다. 사용자가 이미지에 대한 내용-본위 검색을 요구하면 질의에 있는 이미지를 아이콘으로 변환한후, 접근 깁버을 통하여 원하는 이미지를 검색한다. 이를 위하여 본 논문에서는 방향관계 연산자와 위치관계 연산자를 합성하여 새로운 공간 매치 표현 기법을 제안한다. 제안하는 방법은 이미지 내의 아이콘들간의 관계성을 보다 정확하게 표현하며 순위 부여가 가능한 새로운 공간관계 표현기법이다. 아울러 본 연구에서 제안한 방법을 기존의 9DLT 방법 및 SMR 방법과 검색효율면에서 성능 비교를 수행한다. 마지막으로 성능 실험을 통하여 제안한방버이 기존의 9DLT 및 SMR 방법에 비해 정확률 측면에서 약 0.1 재현율 측면에서 약 0.2만큼 우수함을 보인다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2008.06a
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• pp.275-278
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• 2008

컴퓨터게임에 대한 여러 가지 논의는 부정적이거나 기술적인 연구의 한계점을 보이지만, 그 가능성과 사회적 영향력에 대한 부분은 우리 생활 깊이 들어와 인식되고 있다. 다양한 분야에 걸쳐 복잡한 특성을 드러내는 컴퓨터게임은 현 디지털시대와 이 시대를 살고 있는 모두를 포함하여 이들의 문화와 크게 밀접한 연관성을 가진다. 이에 따라 컴퓨터게임이 어떻게 현 시대를 반영하고, 영향력을 미치는지에 대해 다각도의 학문적 접근이 필요함을 밝히고자 한다. 결핍에서만 생겨나는 욕망의 주체가 컴퓨터게임이라는 즐김의 공간에서 일상과는 대립된 가상을 실현하는 심리적 관점에서의 관찰과 함께 양방향적인 게임의 특성을 각각의 이론들과 연관지어 보면서, 막연한 부정적인 시각에서 벗어나 컴퓨터게임을 여러 분야의 만남의 장으로 인식하고 문화로서 바라보는 객관적 시각의 필요성을 밝혀보고자 한다.

• Journal of Navigation and Port Research
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• v.41 no.4
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• pp.215-228
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• 2017

Taking a look at recent trends of port cities, many port cities in the world have been shedding new light on the function being kept by existing port spaces, caused by changes of industrial structure according to the stream of the times, developments of surrounding areas, and etc., and we can see that its meaning also has been changing. However, in case of domestic port spaces they are in the real situation not responding to those movements quickly. Therefore, unlike the existing zoning system dividing functionally urban spaces according to use simply, in this study FBCs getting the timelight recently as a system capable of reflecting spatial characteristics at the maximum have been utilized as a measure for solving current problems of urban spaces. The purpose of this study is to propose the direction of urban planning approach that harmonizes the whole harbor space by strengthening the interlinkage between heterogeneous spaces of port area and port area using FBCs. FBCs are institutional devices that are proposed and implemented in the United States to reflect the unique characteristics of the space, that is, the location and the uniqueness, and the pedestrian-oriented space planning.

• 정보화사회
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• s.138
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• pp.44-47
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• 2000

사이버교육의 가장 큰 매력은 시간과 공간의 제약을 받지 않는다는 것과 학습자(수요자) 중심의 학습이 가능하다는 것이다. 사이버교육은 인터넷이 접속 가능한 환경에서는 언제 어디서나 자신의 필요에 따라 (on-demand), 적시에(just-in-time)교육을 받을 수 있기 때문에 접근성이 높다. 특정 시간에 특정 강의실을 찾아야 하는 전통 교육 방식과 비교했을 때, 시간과 비용의 불필요한 낭비를 제거하고, 교육 기회를 넓혀 준다.

• Proceedings of the KOR-KST Conference
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• 2007.05a
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• pp.563-570
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• 2007

• Journal of Korea Society of Industrial Information Systems
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• v.27 no.1
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• pp.37-48
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• 2022

In this study, a hybrid meta-heuristic approach is proposed for solving engineering design optimization problems. Various approaches in many literatures have been proposed to solve engineering optimization problems with various types of decision variables and complex constraints. Unfortunately, however, their efficiencies for locating optimal solution do not be highly improved. Therefore, we propose a hybrid meta-heuristic approach for improving their weaknesses. the proposed GA-VNS-HC approach is combining genetic algorithm (GA) for global search with variable neighborhood search (VNS) and hill climbing (HC) for local search. In case study, various types of engineering design optimization problems are used for proving the efficiency of the proposed GA-VNS-HC approach

• Journal of the Korean association of regional geographers
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• v.18 no.1
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• pp.118-127
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• 2012

Using GIS, animal clinic's spatial distribution characteristics were analyzed. Animal clinic location data was collected through the Internet's Open API service. Approximately 4,100 animal clinics are operated in South Korea in 2011. And 47 % of these are located in the Seoul area. Population, especially female population and apartment resident's ratio affects the location factor of the animal clinic. The number of 25~44 year-old woman and animal clinics are high correlation. In the animal clinic location, distance from the road is more important than the distance of the metro.

• Journal of Korea Multimedia Society
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• v.9 no.3
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• pp.342-352
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• 2006

Nowadays, Computing environment is changing to ubiquitous. In such ubiquitous computing environments, entities expect to access resources and services at any time from anywhere. Therefore, tile wily how to establish trust relationship among previously unknown devices or resources is needed under such environments. In this paper, we firstly review a model to delegate the trust to communicating entities in ubiquitous environment and its security problems(e.g., malicious right-delegation and revocation of right-delegation). Then, we design a new model for secure delegation over communication entities which is based on two-party signature scheme, and implement it.