• 디지털융복합연구
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• 제12권11호
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• pp.281-288
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• 2014

본 논문에서는 복잡한 영상에서의 윤곽선 검출을 기존의 방법보다 더 명확하고 효율적으로 나타내기 위해서 K-means 군집화를 이용하였다. 제안하는 방법에는 세 가지 단계를 거친다. 첫 번째는 명암분포를 균일하게 하기 위하여 히스토그램 평활화를 사용한다. 두 번째는 거리에 기반을 둔 클러스터링 기법으로 기준점에서 가까운 곳의 데이터들을 하나의 군집으로 묶는 K-means 군집화를 사용하고 마지막으로 에지검출의 가장 대표적인 1차 미분 연산자인 소벨 마스크를 사용하여 윤곽선을 검출한다. 따라서 기존에 있던 윤곽선 검출보다 더 나은 결과로 명확하게 윤곽선을 검출 할 수 있음을 보인다.

• 한국경제지리학회지
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• 제15권4호
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• pp.615-627
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• 2012

본 연구는 교통카드 데이터를 이용하여 대중교통 이용과 관련하여 통행패턴을 분석하였으며 교통정책에 활용할 수 있는 방안을 제시하였다. 교통카드 데이터는 경기도권역을 대상으로 하였고 활용방안으로 교통정책 의사결정자가 버스정류소 시설을 개선할 때 교통카드데이터에서 얻어질 수 있는 여러 변수를 이용하여 대상지를 선정한다는 시나리오를 설정하여 분석하였다. 분석결과, 의사결정방법론인 K평균 군집분석과 CHAID(Chi-squared automatic interaction detection)를 이용하였으며, 유의수준 p<0.01에서 정책에 유용하게 이용될 수 있는 결과를 얻었다. 또한 본 연구에서는 이러한 결과들을 근거로 교통카드데이터를 실제로 정책에 활용되기 위해서 개선되어야 할 정책적 함의를 제시하였다.

• 한국수소및신에너지학회논문집
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• 제33권5호
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• pp.470-498
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• 2022

Recently, the world has been considering hydrogen energy as the primary energy transition means to achieve carbon neutrality by 2050. In order to achieve the goal of reducing greenhouse gas emissions, Korea is also promoting a clean hydrogen economy. However, it is necessary to introduce various clean hydrogen from overseas so that the projected demand can not meet the domestically produced. For this study, we conducted the policy comparison approach between countries other than the generally considered technical and economic approaches. The finding proposes the direction of bilateral cooperation for a strategy of securing overseas clean hydrogen from a geopolitical perspective. Germany was a target country for the policy comparison since it has a high proportion of manufacturing, like Korea, and is taking the lead in the renewable-based energy transition policy. According to the survey and analysis of the policy establishment status and new projects of the two countries, Germany is promoting bilateral international cooperation in the hydrogen area with about 33 countries based on 7 types of activities. In comparison, Korea is involved in bilateral cooperation with about 12 countries on relatively few activities. Among the types of bilateral cooperation, R&D cooperation with advanced countries for hydrogen technology was a common activity type. Germany preemptively promotes cooperation for demonstration and commercialization, considering geopolitical means and strengthening manpower training and assistance on policy and regulation to preoccupy the market for the future. Therefore, it is necessary to consider establishing a network of an entire life cycle of supply and demand network that links the future market with securing clean hydrogen considering the geopolitical distribution. To this end, Korea also needs to expand bilateral cooperation countries by activity type, and it seems necessary to seek various geopolitical-based bilateral cooperation and support measures for developing countries to diversify the supply sources of hydrogen.

• 국제학술발표논문집
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• The 7th International Conference on Construction Engineering and Project Management Summit Forum on Sustainable Construction and Management
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• pp.176-182
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• 2017

The housing market is divided into several sub-markets that operate independently. One of them is the distinction between rental and sales markets. Simultaneously, since the housing is a commodity as well as an asset, it has a close relationship between the rental market and the sales market. Due to the unique structure of Korea, it is difficult to apply the general method to analyze the housing market. This means there is a great deal of concern about side effects from the policy. Actually, the government's subsequent regulation of speculative demand in the future may be necessary to prevent market overheating, but at the same time, there is a fear that the rent will rise. Although changes in policy direction may be inevitable due to changes in market conditions, frequent and sudden changes in policy cause confusion in market participants, causing unrest in the housing market. This study aims to derive main factors and correlation with other housing market factor. These factors will be a base of qualitative housing market model to analyze the market effect of the demand-supply shift. Modeling is based on the system dynamics methodology, which is useful for identifying interactions between variables reflecting various variables in the housing market. The model discussed in this study is expected to provide integrated insight into the key variables of the housing market, away from the monopolistic thinking. It can also be useful as a means of assessing the effectiveness of policies.

• 무역학회지
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• 제44권4호
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• pp.205-220
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• 2019

This article recapitulates the recent changes in trade laws, which may be accentuated due to the intriguing emergence of fortified protectionism and Mega FTAs. It points out the need to formulate not only the corporate strategy for enhancing the product differentiation and architectural capabilities but also the public policy, which comprises the industrial adjustment policy to cope with possible negative impulses caused by the digital trade and foreign direct investment. It is imperative for Korea to facilitate the alignment between corporate strategy and industrial adjustment policy as an effective means of enhancing industrial structure by nurturing those linkage effects between relevant forward and backward industries. Given the drastically volatile trade norms of multi-track trade policies, it may be a pivotal momentum for Korea to pursue a paradigm shift of its trade policy with a prime objective of achieving such an alignment between corporate strategy and industrial adjustment policy, which affords increased value-added and the further development of product or generic technology instead of resorting to the misuses and abuses of economies of scale and production technology for the maximization of export amount.

• 동아시아경상학회지
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• 제9권2호
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• pp.43-54
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• 2021

Purpose - This study aims to build other studies and research on the perception and association of fair hiring policy and employee job satisfaction. The reviews and further research of the performance appraisal and employee satisfaction topics provided a basis to conduct this study based on the challenges that result from equality hiring perception on the performance appraisal on the job satisfaction by employees. Research design, data, and methodology - The author collected many textual contexts from mostly peer-reviewed academic journals, which means that academic comprehensive integrity can be obtained by qualitative approach for this study with discussing and following a constructive review analysis. The content analysis aims to determine a textural dataset in the longtime frame from the newest textural information. Result - There is little doubt that this study was significant and relevant to the relationship between fair hiring policy and worker's job satisfaction, indicating that an organization that practices a fair hiring policy positively affects employee job satisfaction. After all, the employee needs are well catered for and meet appropriately. Conclusion - This study suggests that fairness extensively relies on the organization's ability to identify and eliminate any form of performance challenges regarding equity and has proved and determined the significant relationship between fair hiring policy and employees' job satisfaction

• 대한안전경영과학회지
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• 제13권4호
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• pp.1-7
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• 2011

Korea enacted the occupational safety and health law in order to prevent industrial accidents in 1981. Led by ministry of labor, occupational safety and health support services policy has been built through government-affiliated organizations, research institutions and academic research. Korea's accident rate has remained at 0.7% for last 10 years despite continuous efforts over the last 30 years. These results means that the occupational safety and health support services policy conducted by the government have reached their limits. Therefore, the necessity of assessment about occupational safety and health support services policy is proposed. The main objective of this study, through the IPA analysis, is to grasp the point of worker's needs about occupational safety and health support services policy and to help formulate the efficient policy.

• 디지털융복합연구
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• 제11권11호
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• pp.733-745
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• 2013

본 연구에서는 군사정권 이후의 문민정부, 국민의 정부, 참여정부, 실용정부의 교육정책을 돌아보고, 역대 정부의 일관된 교육혁신정책인 교육의 신자유주의적 속성과 그에 따라 파생하는 교육정책상의 문제점들을 살펴보고자 한다. 이를 바탕으로 현 정부에 요구되는 국가의 교육정책이 나아갈 방향을 제시하고자 한다. 본 연구에서는 이러한 미래교육의 패러다임으로서 '인본주의 교육논리'를 제시하고 있다. 이는 기존의 수월성과 평등성이 분리된 교육정책이 아닌 양자가 조화롭게 균형을 이루는 인본주의(人本主義) 위주의 교육정책을 의미한다.

• Journal of the Korean Data and Information Science Society
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• 제19권2호
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• pp.451-461
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• 2008

In this study, factor and cluster analysis have been conducted to group the differences in Korean view on national economic policy in the sample of the 2006 Korean General Social Survey (KGSS). According to the 2006 KGSS, the 6 items with a 5-point Likert scale include the questions about whether or the extent to which each respondent supports the specific types of governmental economic policy. In our study, at first, the factor analysis has converted the original 6 items into the 3 composite variables that account for 81% in the total variability. As the second step of factor analysis, factor scores have been computed. Then, the K-means cluster analysis based on the factor scores has been conducted to group the survey respondents into the 3 clusters. In particular, the cross-tabulation analysis has shown that the distribution of the 3 clusters varies with the respondents' socio-demographic characteristics.

• 대한안전경영과학회지
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• 제15권4호
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• pp.209-216
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• 2013

By means of the model competition, this research analyzed the factor of patient management, the factor of policy support, and the factor of medical treatment system. Concretely, the factor of policy support forms a positive effects on the factor of medical treatment system. Practically, well-established healthcare policy provide and facilitate the effective medical treatment system. of the hospital. And, in the effective medical treatment system, hospitals try to develop the patient management of the chronic disease. From the empirical research, this paper concluded that the factor of medical treatment system. mediated by the factor of policy support. Also, the factor of medical treatment system promotes the development of patient management in the chronic disease.