• 정보기술과데이타베이스저널
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• 제4권2호
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• pp.33-45
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• 1998

Database summarization is the procedure to obtain generalized and representative descriptions expressing the content of a large amount of database at a glance. We present a top-down summary refinement procedure to discover database summaries. The procedure exploits attribute concept hierarchies that represent ISA relationships among domain concepts. It begins with the most generalized summary and proceeds to find more specialized ones by stepwise refinements. This top-down paradigm reveals at least two important advantages compared to the previous bottom-up methods. Firstly, it provides a natural way of reflecting the user's own discovery preference interactively. Secondly, it does not produce too large intermediate result that makes it hard for the bottom-up approach to be applied in practical environment. The proposed procedure can also be easily extended for distributed databases. Information content measure of a database summary is derived in order to identify more informative summaries among the discovered results.

• 한국주거학회논문집
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• 제17권3호
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• pp.51-60
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• 2006

Ten years have passed since the Demolishing Walls Campaign has started in Daegu. Recently, the campaign influenced to the other cities in Korea, such as Seoul, Incheon and Busan with various names regarding cities' circumstances. In these context, the study aims to highlight the identity of the Demolishing Walls Campaign compare Daegu with other cities where similar movement has started. In addition, the study evaluates the campaign in terms of physical, psychological and economical aspects to suggest some practical suggestion for the development of the campaign based on questionnaire survey. The research findings are as follows. The research shows that the identity of the Daegu Campaign is started by bottom-up approach based on citizens' participation compare with others cities' campaigns which are mainly started by the local government so called top-down method. The Daegu campaign influences the local people aware of their potential abilities in positively improving urban environment. The results of survey also highlights the advantages of green spaces which by the campaign in terms of environmental and economical aspects. Newly generating urban greens accept and store heat which Influences urban microclimate conditions and it possibly affects energy savings of the city. Most of survey participants eager to continue this campaign which shows positive results in various aspects by the local people. Therefore, the city government building a coalition of local people, NGOs, and interest group to keep the identity of the campaign in Daegu.

• 한국CDE학회논문집
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• 제7권1호
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• pp.42-56
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• 2002

Presented in this study is a top-down functional requirement analysis procedure and the desired functionalities for PDM system development, and the benefits of top-down approach over a conventional bottom-up approach is also shown. For the purpose of top-down requirement analysis for PDM system, this study proposes 4P modeling view. 4P modeling view is defined as a modeling perspective for classifying functional requirements and integrating product-related information objects that must be man-aged within PDM systems. Based on 4P modeling templates, benchmarking analysis of commercially major PDM products is conducted and as a result of this analysis, this study suggests desired functionalities for PDM system.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2022년도 학술발표회
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• pp.153-153
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• 2022

Large-scale and accurate observations at fine spatial resolution through a means of remote sensing offer an effective tool for capturing rainfall variability over the traditional rain gauges and weather radars. Although satellite rainfall products (SRPs) derived using two major estimation approaches were evaluated worldwide, their practical applications suffered from limitations. In particular, the traditional top-down SRPs (e.g., IMERG), which are based on direct estimation of rain rate from microwave satellite observations, are mainly restricted with their coarse spatial resolution, while applications of the bottom-up approach, which allows backward estimation of rainfall from soil moisture signals, to novel high spatial resolution soil moisture satellite sensors over South Korea are not introduced. Thus, this study aims to evaluate the performances of a state-of-the-art bottom-up SRP (the self-calibrated SM2RAIN model) applied to the C-band SAR Sentinel-1, a statistically downscaled version of the conventional top-down IMERG SRP, and their integration for a targeted high spatial resolution of 0.01° (~ 1-km) over central South Korea, where the differences in climate zones (coastal region vs. mainland region) and vegetation covers (croplands vs. mixed forests) are highlighted. The results indicated that each single SRP can provide plus points in distinct climatic and vegetated conditions, while their drawbacks have existed. Superior performance was obtained by merging these individual SRPs, providing preliminary results on a complementary high spatial resolution SRP over central South Korea. This study results shed light on the further development of integration framework and a complementary high spatial resolution rainfall product from multi-satellite sensors as well as multi-observing systems (integrated gauge-radar-satellite) extending for entire South Korea, toward the demands for urban hydrology and microscale agriculture.

• 감성과학
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• 제6권1호
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• pp.55-62
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• 2003

본 연구는 비디오/오디오 프로토콜 분석 방식을 이용해서 텍스타일 디자인 프로세스 중 모티브 개발 단계에서의 디자이너의 인지 모형을 분석하기 위한 탐색적 연구이다. 텍스타일 디자인 프로세스에 대한 프로토콜 분석을 위해 선행 연구를 고찰하여 디자인 행동 범주의 틀을 하향식(top-down)방식으로 설정하고 실제 행동 프로토콜(action protocol) 분석을 통해 상향식(bottom-up)방식으로 세부 디자인 행동을 분석하였다. 본 연구에서는 모델 휴먼 프로세서(Model Human Processor)이론에 기초하여 텍스타일 디자인 행동을 모터 행동(motor action), 지각 행동(perceptual action), 인지 행동(cognitive action)의 세 가지 범주로 나누었으며 이를 토대로 하여 텍스타일 디자인 프로세스에 적합한 코딩 스킴(coding scheme)을 개발하였다. 본 연구에서는 이 새로운 코딩 스킴을 토대로 하여 모티브 개발 단계에서의 텍스타일 디자이너의 인지 모형을 제시하였다.

• 한국농촌생활과학회지
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• 제4권2호
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• pp.155-162
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• 1993

BIDANI는 활동-연구계획으로서 지역주민이 상부기관의 계획 입안자와 밀접한 관계를 유지하면서 자신의 활동과 포부를 프로그램에 반영토록 하는데 그 목표를 두고 있다. BIDANI는 지역차원의 종합개발 접근이며, 주민의 참여서비스로 지역종합개발계획(BIDP)을 수립한다. 지역의 상황분석, 문제점 우선순위 및 잠재자원의 확인은 주민에 의해 수행된다. 상향식 접근으로 참여 계획을 수립하고 BIDP를 공식화한다. 적절한 유인과 지원으로 지역주민의 참여를 촉진한다. 정부와 사립기관의 사업과 자원활용의 접근성과 효율성을 높힌다. 고위험영양불량 가족집단을 개발프로그램 활동에 참여케 하여 영양의 중요성을 인식케 한다. 정치 및 사회경제적 배려를 최하위 수준에 통합 시키토록 운영한다. 군/시장을 사업소장으로 임명하는 제도화를 통해 프로그램 수행과 지속성을 촉진한다. 따라서 시/군 종합개발프로그램 (C/MIDP)의 “하향식” 계획은 지역의 “상향식” 계획과 연계된다. 시/군지역개발훈련원을 설립하여 지역주재 요원과 주민의 계속 교육을 도모하는 것이 성공과 활력으로 유인하는 개발촉진 요소이다. 비정치적 부문, 즉 학술기관과 사립기관과의 기능적 연계를 강화한다.

• 한국시스템다이내믹스연구
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• 제16권4호
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• pp.83-101
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• 2015

The purpose of this study is to illuminate the reason why community building policies by the Government seem to fail to work properly in Korea. The existing studies focus mainly on designing community building systems, thus they cannot provide plausible explanations about the cause of the unsuccessful outcomes from the policies. To overcome the limitations of the existing studies, the authors examine the implementation factors to influence the policy instruments with the perspective of policy implementation. By performing the analysis, the results imply the implementation factors, such as executer's competence, supports by related interests, incentive systems, and legal-institutional instruments, are important to influence the implementation performance of the relevant policy instruments. To make community building successful policies, The authors therefore suggest that the capacity of local administrators and residents should be raise, and one of which the way to enhance is to support research and program development by the resident-oriented living laboratory systems in localities.

• 농촌지도와개발
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• 제11권2호
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• pp.303-320
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• 2004

Comprehensive rural village development projects were launched by MAF(Ministry of Agriculture and Forestry) and KARICO (Korea Agricultural and Rural Infrastructure Cooperation). Since 2004, they received much attention for rural development policy, such as the bottom-up approach, inducing participation of residents and enhancing regional capacity. However, there still remain several problems to be solved. The purpose of this study was to suggest methodologies to facilitate residents' participation in comprehensive rural village development projects by literature review. The core problems of comprehensive rural village development projects in the planning stage were the conflicts among residents and the lack of resident capacity for rural development. Based on the findings of this study, the following recommendations were made to facilitate the residents' participation. In order to reinforce the residents' participation, the mediating skills of conflicts among residents and the strategies for strengthening the residents' capacity should be introduced in comprehensive rural village development projects.

• 농촌계획
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• 제3권2호
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• pp.90-101
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• 1997

The objectives of the study are to identify the issues and problems encountered in Korea's current integrated rural regional development(IRRD) program and to suggest policy remedies to cope with them. Secondary data and materials ate mainly used for the study. Since the mid-1980s, rural settlement planning has been carried out in the Republic of Korea, In the planning process,'scale of economy'perspectives and settlement policy have been emphasized for increasing the efficiency of investment. During the 1990s, rural settlement and major village development projects have been implemented under the rural structure transformation programs. Agricultural structure adjustment projects for land consolidation and sizable farming have been separated from the rural settlement and mojor village development projects. Based on the evaluative analysis for the rural structure transformation policy and program, some problematic issues were raised as follows: (a) lack of integrative control function in the program'(b) weak linkage between living environment improvement and agricultural development projects: and (c) lack of comprehensive village development planning and implementation system. The policy issues to solve the problems were suggested as follows: (a) adoption of bottom-up approach in new IRRD planning and project system : (b) projection of comprehensive development planning and project at the village level; and (c) introduction of new regional agriculture development projects such as direct payment system for farming in less favorable areas and organic farming.

• 한국시스템다이내믹스연구
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• 제14권3호
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• pp.51-74
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• 2013

Recently, Community Rebuilding Projects (hereinafter CRPs) in Korea have been driven and motivated by community inhabitants by themselves, and highlighted as an alternative approach to overcome the limitation revealed normally in top-down projects of community vitalization by the Government. The CRPs encourage community-lead development because it happens to integrate multiple stakeholders and to help inhabitants to participate in the process of the CRPs by accumulating and enlarging social capital and network among inhabitants, and the social gain consequently raises the efficiency of public investment in revitalizing communities. In this study, the series of Causal Loop Diagrams (CLDs) is to be elaborated and the System-Thinking (ST) approach is to be presented to understand the dynamic characteristics residing in the above development process of rebuilding communities. The ST approach refers to the CLDs analyzing 19 remarkable Korean CRP cases, and leads to a conclusion including some of policy instruments to support the bottom-up CRPs in Korea. This study contributes a theoretical framework to understand the dynamic relation between social capital and community revitalization as well as empirical suggestions to respond to the issues of the CRPs in Korean local governments.