• 한국컴퓨터정보학회:학술대회논문집
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• 한국컴퓨터정보학회 2023년도 제67차 동계학술대회논문집 31권1호
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• pp.319-320
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• 2023

본 논문에서는 합성곱 신경망이 적용된 네트워크를 활용해 전이 학습의 과정을 거친 멸종위기종 철새들의 이미지를 분류하는 시스템의 설계과정과 결과를 제시한다. 연구 방법으로 한국 영랑호를 찾아오는 멸종위기종, 천연기념물인 철새들의 이미지를 학습시켜 "가창오리", "노랑부리백로", "물총새" 이 세 종의 철새들을 매우 정확하게 분류하는 것을 확인하였다. 데이터 예비학습과정에서 train data의 개수를 40개로 진행했을때 약 92%의 정확도를 확인 후, train data의 이미지 개수를 50장으로 늘려 더 높은 정확도를 얻을 수 있었다. 이 시스템은 한국을 방문하는 멸종위기종 철새들을 무분별하게 포획하지 않도록 철새 이미지 분류시 활용 가능하다고 사료된다.

• 한국컴퓨터정보학회:학술대회논문집
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• 한국컴퓨터정보학회 2024년도 제69차 동계학술대회논문집 32권1호
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• pp.435-436
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• 2024

본 연구는 불특정 다수를 대상으로 한 범죄가 증가하면서 높아지고 있는 사회 불안을 해소하기 위해 서울시 10개 구를 선정하여 해당 구의 치안 강화를 위한 유용한 정보를 추출했다. 그리고 이를 데이터베이스화하여 다각적인 방면에서 분석하고 추가 대응 방안을 제시하였다. 서울지방경찰청의 2022년 치안 통계와 통계청의 2020년 사회조사 결과에 따르면 전체적으로 사회가 범죄에 대한 불안에 떨고 있음을 확인할 수 있었다. 안전서비스 설치와 범죄 발생 사이의 상관관계를 파악하고 범죄 발생에 미치는 요인들을 발견하여 추가적인 대응 방안을 설계한다면 우리 사회의 범죄 발생에 대한 불안을 해소할 수 있을 것으로 사료된다.

• 한국컴퓨터정보학회:학술대회논문집
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• 한국컴퓨터정보학회 2024년도 제69차 동계학술대회논문집 32권1호
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• pp.453-454
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• 2024

본 연구는 경기 변동에 따라 대중들의 소비가 민감한 사업군을 도출해내고, 서울시 열린데이터 광장의 소비데이터를 분석하여 해당 기업의 경영 전략을 제시하는데 목적이 있다. 2023년 물가지수(CPI)는 8월 3.4%, 9월 3.7%, 10월 3.8%로 유례없는 상승 추이를 보이고 있다. 또한, KDI(한국개발연구원)는 2024년 소비는 고물가 기조로 인하여 상품소비의 부진이 지속되어 기업 매출이 전년(1.9%)과 유사하게 1.8% 증가하는데 그칠 전망이라고 예측하였다. 이렇게 대중들의 소비가 줄어들고 있는 경기 상황에서 기업이 손실을 막기 위해 취할 수 있는 대응 전략을 수립하는데 이 연구가 도움이 되리라고 사료된다.

• 대한수학회지
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• 제43권3호
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• pp.659-676
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• 2006

In this paper, we consider three-component reaction-diffusion system. With an integral condition and a global coupling, this system gives us an interesting free boundary problem. We shall examine the occurrence of a Hopf bifurcation and the stability of solutions as the global coupling constant varies. The main result is that a Hopf bifurcation occurs for global coupling and this motion is transferred to the stable motion for strong global coupling.

• 복식문화연구
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• 제16권4호
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• pp.595-608
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• 2008

Although Korean apparel companies have transformed dramatically from contractors to sourcing companies thanks to the rapid growth of local market, relatively little work has been done identifying the determinants and the patterns of global sourcing activities of Korean companies. The purpose of this study was to outline a conceptual model that may be used to organize and guide global sourcing activities of Korean apparel manufacturers and retailers. The conceptual model identified four important factors, cost factor, strategic non-cost factor, firm's internal factor, and global factor, which affect global sourcing strategies and help predict how companies conduct various sourcing activities. The model also identified two sourcing patterns, outsourcing and intra-firm sourcing. In developing the model, literature review on how manufacturers and retailers in diverse areas including global apparel sourcing was conducted. Managerial implications and directions far future study were offered as well.

• The International Journal of Costume Culture
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• 제13권2호
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• pp.130-140
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• 2010

This research was carried out by setting hypotheses on recognition of the global image of the research subject, a domestic cosmetic brand and consequent quality of the brand, reputation of the brand, purchasing decision, influence of images of expanded countries and their correlations to investigate what effect the global images of local brands practically have on domestic consumers' purchasing decision. The analysis results show that overseas expansion of the research subject brand has positive influence on the brand possessing global images. However, it can be seen that the quality of the brand has much larger influence on the reputation of the brand than the images of global brand. In addition, the images of the expanded countries have influence on purchasing decisions but the global images based on the expanded countries did not have much influence on purchasing decisions. Therefore, it can be seen that global images based on high levels of brand reputation and quality are requirements of a most competitive brand than images of the expanded countries in forecasting likelihood of purchase.

• 생태와환경
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• 제47권4호
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• pp.302-311
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• 2014

Global climate change is significant issue in marine ecosystem and fishery market. According to rising of both seawater temperature and sea-level, global fishery environment and marine ecosystem are changing drastically. Moreover, over-exploitation in fishery areas is the most important issue in the marine ecosystem conservation. In analysis and statistics of global network, major fish populations are decreasing very fastly, but fish catch are increasing annually. It means balance between product and consume is not appropriate in the global market. China as emerging new fish consumer in the world is strongly developing fishery industry and technology. In this paper, I try to review a relationship between marine ecosystem and climate change in global scale according to references. I also suggested possibility of sustainable global fishery in changing marine ecosystem by analysis of some related reports of international global fishery.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2006년도 심포지엄 논문집 정보 및 제어부문
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• pp.15-17
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• 2006

This paper presents a new global intensity compensation method for extracting moving object in a visual surveillance system by compensating time variant intensity changes of background region. The method that compensates a little changes of intensity due to time variant illumination change and automatic gain control of camera is called global intensity compensation. The proposed method expresses global intensity change with a mapping table to describe complex form of intensity change while the previous method models this global intensity change with a simple function as a straight line. The proposed method builds the mapping table by calculating the cross histogram between two images and then by selecting an initial point for generating the mapping table by using Hough transform applied to the cross histogram image. Then starting from the initial point, the mapping table is generated according to the proposed algorithm based on the assumption that reflects the characteristic of global intensity change. Experimental results show that the proposed method makes the compensation error much smaller than the previous GIC method

• 대한기계학회:학술대회논문집
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• 대한기계학회 2008년도 추계학술대회A
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• pp.678-683
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• 2008

Moment-based reliability analysis is the method to calculate reliability using Pearson System with first-four raw moments obtained from simulation model. But it is too expensive to calculate first four moments from complicate simulation model. To overcome this drawback the MD(multiplicative decomposition) method which approximates simulation model to kriging metamodel and calculates first four raw moments explicitly with multiplicative decomposition techniques. In general, kriging metamodel is an interpolation model that is decomposed of global model and local model. The global model, in general, can be used as the constant global model, the 1st order global model, or the 2nd order global model. In this paper, the influences of global models on the accuracy and robustness of raw moments are examined and compared. Finally, we suggest the best global model which can provide exact and robust raw moments using MD method.

• The International Journal of Costume Culture
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• 제7권1호
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• pp.58-69
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• 2004

This study generated a framework to help academicians understand consumers' cultural values and global-mindedness Especially, this study affirmed the importance of fashion involvement in evoking global-mindedness when consumers have strong traditional values. A conceptual model with non-traditional and traditional values as exogenous variables, global-mindedness as endogenous variable and fashion involvement as mediating variable were created for the study. Data from 224 female college students were analyzed for empirical study. Results indicated that college students showed higher level of non-traditional values than traditional values. Non-traditional values had significant direct influence on global-mindedness whereas traditional values did not have significant influence. Traditional values as well as non-traditional had significant influence on fashion involvement. Fashion involvement significantly affected global-mindedness. Both non-traditional values and traditional values had significant positive indirect effects on global-mindedness mediated by fashion involvement.