• Science of Emotion and Sensibility
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• v.7 no.3
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• pp.27-35
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• 2004

This study has investigated a psychological status of optimal and pleasant driving condition by measuring various physiological signals using SCR(skin conductance response), PPG(peripheral plethysmograph), SKT(skin temperature) and HR(heart rate). The physiological response was measured during various simulated driving conditions. We developed a hardware and algorithm to measure and analyze the physiological response. The physiological signals has reflected the level of driver's tension or relaxation as well as the heart rate. The emotional responses of drivers were also measured and analyzed in this experiment. The result of the study can be used to design a system to enhance the driver's emotional satisfaction as well as to monitor the driver's safety and health condition.

• Journal of Korea Society of Industrial Information Systems
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• v.8 no.3
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• pp.1-11
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• 2003

MPEG-4 provides high compression rate and uses object-oriented method to describe components of its structure, which has currently risen as the core technique in multimedia service fields. Our research objective is to provide object manager to MPEG-4 system in order that effective multimedia service could be available by supporting powerful interaction and adapting to various networks and terminals. Through the object manger, priorities are given to objects of a scene tree and the objects having higher priorities are first rendered according to the terminal capability. It also manages synchronization and update of the scene tree and object informations caused by user interactions.

• Journal of Navigation and Port Research
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• v.29 no.10 s.106
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• pp.897-906
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• 2005

The purpose of this research is to verify the strategic fitness and relevance of the distribution park for a hub port in Northeast Asia and to find a method to be a hub-port with a competitive edge. The strategic factor of distribution park development are policy, methodology and promotion method So these factors are analysed by structural equation model. The essential results of the research show that distribution park should be actually developed to produce value-added and to be port cluster.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.14 no.10
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• pp.2371-2377
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• 2010

As the substantial increment in program complexity and appearance of mega program, the programs need to be divided to small tasks with multiple partitions and performed with a priority based scheduling. And also, a program development has to be progressed according to diversify of development environment. For instance, there are some restrictions upon O/S environment such as embedded O/S or windows. Therefore, the adaptive scheduling technique which performs multiple task partitioning process, regardless environment or O/S, is suggested. In this study, In this study, the adaptive scheduling technique algorithm and its applied examples are described.

• The Transactions of the Korea Information Processing Society
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• v.7 no.7
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• pp.2108-2115
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• 2000

The conventional Boolean retrieval systems based on vector spae model can provide the results of retrieval fast, they can't reflect exactly user's retrieval purpose including semantic information. Consequently, the results of retrieval process are very different from those users expected. This fact forces users to waste much time for finding expected documents among retrieved documents. In his paper, we designed a bayesian SOM(Self-Organizing feature Maps) in combination with bayesian statistical method and Kohonen network as a kind of unsupervised learning, then perform classifying documents depending on the semantic similarity to user query in real time. If it is difficult to observe statistical characteristics as there are less than 30 documents for clustering, the number of documents must be increased to at least 50. Also, to give high rank to the documents which is most similar to user query semantically among generalized classifications for generalized clusters, we find the similarity by means of Kohonen centroid of each document classification and adjust the secondary rank depending on the similarity.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.9 no.1
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• pp.195-201
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• 2008

LCD Enterprises introduce quality management strategy to survive in rapid change of production situation. Especially in LCD industry, competitiveness is more needed ever before in the decrease of investment resulted from frequent business fluctuations and in the appearance of the third competitor. In order to overcome this situation, the quality cost system should be implemented as it is suited to a company, but few companys introduce and apply the quality cost system in LCD industry. Thus, Critical factors for outstanding LCD company to apply successfully quality cost system are studied in this paper. The level of importance of the factors is measured be weighted value analysis and a way to maximize the effect of applying quality cost system in LCD industry is proposed by the order of importance.

• Proceedings of the KAIS Fall Conference
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• 2009.12a
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• pp.374-377
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• 2009

기업 경영이 점차 글로벌화 되어가는 환경 하에서 중소기업의 경쟁력강화대책의 일환으로 경영컨설팅 지원사업이 시작된 지 10년이 되었다. 그동안 실증적인 사후자료에 의한 평가는 전무한 실정으로 본 연구에서는 중소기업 쿠폰제 경영컨설팅 사업을 통한 사업참여 중소기업의 재무적 상황을 중심으로 사업참여 전 후를 비교 분석함으로써 본 사업의 시행성과를 분석하는 데 그 목적이 있다. 이를 위해 2005년도 중소기업 쿠폰제 경영컨설팅 지원사업 참여기업 중 지원사업 중 지원예산의 규모가 가장 크고, 업체에 지원금액이 많은 사업 혁신과제컨설팅(II)부문의 컨설팅을 수행한 기업들을 대상으로 수집한 재무비율분석 자료를 활용하여 사업참여 이전 및 이후의 재무상황 변화를 분석하였으며, 2005년을 기준으로 이전 1년 및 이후 2년간을 비교하였으며, 2005년 중소기업 쿠폰제 경영컨설팅 지원사업 혁신과제컨설팅(II) 70업체 중 사업참여 이전 및 이후 2년간의 자료를 구할 수 있는 34개 업체를 대상으로 하였다. 각 년도별 표본의 재무비율 산출은 EXCEL 2007을 사용하였으며, 쿠폰제 경영컨설팅 전 후 두표본 집단간의 차이 검증은 SPSS win 15.0K의 Wilcoxon 부호순위검정을 실시하여 검증하였다. 검증결과 경영컨설팅 전 후 전반적으로 가설은 기각되고, 성장성지표의 매출액증가율 및 활동성지표의 경영컨설팅 후 2년 총자산회전율은 기각되지 않으나 역의 영향력(설명력)을 가진 것으로 나타나, 쿠폰제 경영컨설팅사업의 실질적인 효율성 제고가 필요하다.

• The Journal of the Korea Contents Association
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• v.17 no.7
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• pp.397-407
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• 2017

This study aims to suggest development direction of smart city service support institutions for the development of smart cities. For this purpose, First of all, the necessity of smart city service support organization, legal basis and major functions were theoretically examined. Second, reviewed the functions of smart city service support institutions and conducted relative importance and in depth interviews with experts. Third, suggested development direction of smart city service support institutions which summarized the above results is suggested. The result of this study is meaningful in that it suggests roles, functions and future directions of smart city service support institutions.

• Journal of Korean Institute of Industrial Engineers
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• v.39 no.2
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• pp.119-128
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• 2013

Most internet users utilize internet portal search engines, such as Naver, Daum and Google nowadays. But since the results of internet portal search engines are based on universal criteria (e.g. search frequency by region or country), they do not consider personal interests. Namely, current search engines do not provide exact search results for homonym or polysemy because they try to serve universal users. In order to solve this problem, this research determines keyword importance and weight value for each individual search characteristics by collecting and analyzing customized keyword at external database. The customized keyword weight values are integrated with search engine results (e.g. PageRank), and the search ranks are rearranged. Using 50 web pages of Goolge search results for experiment and 6 web pages for customized keyword collection, the new customized search results are proved to be 90% match. Our personalization approach is not the way that users enter preference directly, but the way that system automatically collects and analyzes personal information and then reflects them for customized search results.

• Journal of Korean Institute of Industrial Engineers
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• v.33 no.4
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• pp.430-438
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• 2007

In the current RFID (Radio Frequency IDentification) middleware systems based on the EPCglobal standard, the tag data received by multiple readers are processed sequentially in FIFO (First In First Out) order. Considering the priority of RFID reader makes the RFID system more flexible and improve the data transaction throughput in the service environment where important tag data with high priority for a specific reader. In this study, we propose a new RFID middleware system architecture supporting priority service with the Buffer Management Component. Our proposals are compliant with the EPCglobal ALE (Application Level Events) standard interface for middleware systems and their clients. To verify the efficiency of this proposed system, simulation is used for evaluation.