• 예술인문사회 융합 멀티미디어 논문지
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• 제7권3호
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• pp.329-337
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• 2017

본 논문에서는 서포트 벡터 머신의 중요한 파라미터인 C와 σ값을 빠르고 정확하게 찾는 탐색 방법론을 제안한다. 기존에 알려진 격자 탐색 방식은 모든 경우를 비교하기 때문에 탐색속도가 느리다. 이러한 문제점을 개선하기 위해 본 논문에서는 탐색속도 향상을 위한 딥 서치 방식을 제안한다. 1단계에서는 C-σ 정확도지표를 4등분 한 뒤 각 영역의 중간 값을 탐색하여 가장 정확도 값이 높은 지점을 시작 지점으로 선택한다. 2단계에서는 선정된 시작지점을 다시 4등분한 뒤 정확도 값이 가장 큰 지점을 새로운 탐색지점으로 지정한다. 3단계에서는 탐색지점에 이웃한 8개의 지점들을 탐색하여 정확도 값이 가장 높은 곳을 새로운 시작 지점으로 선정한 뒤 해당 지점을 4등분하여 정확도 값을 계산한다. 마지막 단계에서는 이웃 지점의 값들보다 탐색지점의 정확도지표 값이 최댓값이 될 때까지 진행한다. 최댓값을 만족하지 않을시 2단계에서부터 반복하며 입력된 레벨 값만큼 반복을 진행한다. 베어링의 결함 및 정상 데이터를 사용하여 비교한 결과, 제안한 Deep search 알고리즘은 기존 알고리즘 보다 성능 및 탐색시간에서 우수성을 보였다.

• 예술인문사회 융합 멀티미디어 논문지
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• 제7권12호
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• pp.795-806
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• 2017

본 논문은 가상현실 주거공간 콘텐츠를 대상으로 하는 사용자경험 평가 방법을 제안한다. 그리고 프로토타입으로 제작한 시뮬레이션에 제안한 사용자경험 평가 요인을 적용하여 사용자경험을 측정한다. 본 논문에서 제안한 사용자평가 방법론은 기존 사용자평가 방법론에 기반하되, 가상현실 주거공간의 특성에 맞도록 사용 경험과 평가 요인을 변경하여 수립하였다. 프로토타입으로 제작한 가상현실 주거공간 시뮬레이션은 실제 사용자가 현실감을 느낄 수 있도록 실제 공간과 유사하게 구성하였고, 사용자들이 현실에서 사용하는 오브젝트들을 각 공간에 배치하였다. 실험 대상자들은 주어진 시나리오대로 작업을 수행한 뒤, 시뮬레이션 평가를 수행하였다. 평가 결과 시뮬레이션의 주요 목표인 사용자에게 현실감을 느끼게 하는 항목이 예상보다 낮게 나타났다. 이는 추후 시뮬레이션은 현실감을 높이는 요소의 추가하거나 확장하는 방식으로 수정 방향을 설정해야 함을 의미한다. 이렇게 본 논문에서 제안한 UX평가 방법은 콘텐츠 개발자 또는 디자이너에게 가상현실 주거공간에서 사용자의 요구를 파악할 수 있는, 보다 객관적인 지표를 제공할 수 있을 것으로 기대한다.

• 예술인문사회 융합 멀티미디어 논문지
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• 제7권3호
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• pp.371-381
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• 2017

본 논문에서는 인간 움직임에 관한 이론들 중 현대무용 이론가인 루돌프 폰 라반(Rudolf von Laban)의 움직임 분석(Laban Movement Analysis)을 중심으로 추상 애니메이션의 제작 방법론을 소개한다. 라반의 이론은 다양한 인간의 움직임들을 묘사하고 시각화하고 해석하고 문서화하기 위한 도구와 언어를 모두 포함하며 그 중 공간조화이론인 코레우틱스(Choreutics)는 고대로부터 정의된 자연의 보편적인 패턴과 자연의 일부인 인간의 보편적 디자인에 기반하고 있다. 라반은 근본적으로 움직임의 공간을 이원론적 방식으로 정의하였는데 외형적으로는 점, 선, 면, 다각형, 그리고 선형, 비선형 움직임과 같은 기하학과 모션 프리미티브의 관점에서의 객관적이고 과학적인 정의를 통해 컴퓨터 그래픽스에서 인간의 움직임을 생성하기 위한 구체적인 기반을 제공하였다. 또 한편으로는 움직임의 내적인 의도와 관련하여 나타나는 역동적 운동성의 미묘한 특징들을 이해할 수 있는 시스템을 제공하였다. 라반의 해석은 다양한 시각적 분석방식을 통해 조형예술과 컴퓨터 아트 양쪽 분야에서 활용될 수 있는 잠재적인 가치를 지니고 있다. 본 연구는 움직임에 대한 신체적, 심리적 분석에서 영감을 얻었으며 추상 애니메이션을 제작하기 위해 컴퓨터 알고리즘을 개발하였다. "코레오그래피(Choreography)"라고 명명된 일련의 컴퓨터 애니메이션 작품들은 문화체육관광부와 한국공예·디자인문화진흥원이 주최·주관한 "2015 공예트렌드페어(Craft Trend Fair)"의 주제관 <손에 담긴 미래>와 2016년 주영한국문화원의 "움직임을 만드는 사물(Make Your Movements: Korean Contemporary Objects)"등 다수의 전시에 소개되었다. 본 논문에서는 라반의 움직임에 관한 표현을 기초로 추상적 조형요소들의 움직임을 제작하기 위한 아이디어와 방법들을 설명한다.

• 예술인문사회 융합 멀티미디어 논문지
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• 제7권12호
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• pp.37-50
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• 2017

본 연구는 말레이시아 무슬림의 인삼 및 홍삼제품에 대한 인식과 태도 및 이용실태를 이해하기 위하여 실시되었다. 웹 기반 설문조사방법을 이용하여 말레이시아에 거주하는 성인 남녀 무슬림(n=200)을 대상으로 인삼·홍삼제품의 인지수준, 선호도와 선호요인, 효능에 대한 인지도, 구매현황 및 만족도 등을 조사하였다. 연구결과 말레이시아 무슬림의 인삼·홍삼제품 인지도는 각각 50%, 40%정도로 나타났다. 특히, 인삼·홍삼제품에 대한 인지도는 말레이시아 여성 또는 기혼 소비자에서 상대적으로 높았다. 섭취 경험이 가장 높게 나타난 제품유형은 인삼커피, 캔디 및 초콜릿유형이었으며, 특히 인삼커피는 40~50대, 기혼자가 상대적으로 많았다. 전체 응답자의 75%는 인삼·홍삼제품의 효능에 대하여 알거나 들어본 적이 있었으며, 특히, 40-50대에 비해 20-30대가 섭취하는 이유는 건강증진, 기분전환, 주위권유 등이 주요하며, 방송이나 지인추천을 통하여 효능을 알았고, 피로개선, 면역력 증진, 고혈압개선 효능에 대한 인지도가 높게 나타났다. 인삼·홍삼제품의 건강증진효능, 구매편의성, 맛과 향에 대한 만족도는 높았지만 가격이나 포장규격은 개선할 부분으로 나타났다. 지인 추천의향(82.6%)과 지속구입의향(83.5%)은 모두 높은 편이었다. 결론적으로 할랄 인삼·홍삼제품에 대한 말레이시아 소비자의 관심과 수요를 확인할 수 있었으며 향후 인삼·홍삼제품의 인지도를 향상시킬 수 있는 전략적인 제품개발과 마케팅이 필요하다고 판단된다.

• Journal of Korea Trade
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• 제27권1호
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• pp.139-158
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• 2023

Purpose - The study of co-movements between stock markets is a crucial area of finance and has recently received much interest in a variety of studies, especially in international finance. Stock market co-movements are a major phenomenon in financial markets, but they are not necessarily independent of the real market. Several studies support the idea that bilateral trade linkages significantly impact stock market correlations. Motivated by this perspective, this study investigates whether real market integration due to trade agreements brings about financial market integration in terms of stock market co-movement. Design/methodology - Over the 10 free trade agreements (FTAs) signed by the United States, using a dynamic conditional correlations (DCC) multivariate GARCH (MGRACH) model, we empirically measure the degree of integration by finding DCCs between the US market and the partner country's market. We then track how these correlations evolve over time and compare the results before and after trade agreements. Findings - According to the empirical results, there are positive return spillover effects from the US market to eight counterpart equity markets, except Jordan, Morocco, and Singapore. Especially Mexico, Canada, and Chile have large return spillover effects at the 1% significance level. All partner countries of FTAs generally have positive correlations with the US over the entire period, but the size and variance are somewhat different by country. Meanwhile, not all countries that signed trade agreements with the United States showed the same pattern of stock market co-movement after the agreement. Korea, Mexico, Chile, Colombia, Peru, and Singapore show increasing DCC patterns after trade agreements with the US. However, Canada, Australia, Bahrain, Jordan, and Morocco do not show different patterns before and after trade agreements in DCCs. These countries generally have the characteristic of relatively lower or higher co-movements in stock markets with the US before the signing of the FTAs. Originality/value - To our knowledge, few studies have directly examined the linkages between trade agreements and stock markets. Our approach is novel as it considers the problem of conditional heteroscedasticity and visualizes the change of correlations with time variations. Moreover, analyzing several trade agreements based on the United States enables the results of cross-country pairs to be compared. Hence, this study provides information on the degree of stock market integration with countries with which the United States has trade agreements, while simultaneously allowing us to track whether there have been changes in stock market integration patterns before and after trade agreements.

• 대한토목학회논문집
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• 제28권3D호
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• pp.407-415
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• 2008

본 연구에서는 도시하천의 수체적 계산에 이용되는 지형측량자료의 정확도 향상을 위해 영상정보를 연계하는 기법을 제시하였다. 먼저, 사주와 초지에 대한 지형을 구축하기 위해 횡단측량자료로부터 IDW와 크리깅과 같은 GIS 공간추정기법을 적용하였으며 생성된 지형의 정확도를 평가하기 위해 검정점 측량자료와 비교하였다. 비교결과, 사주에서는 2차 제곱의 IDW가 초지영역에서는 크리깅 구형모델이 하천내 지형구축에 효과적이었으나, 보간법간의 차이는 크지 않은 것으로 나타났다. 또한 하천에 분포하고 있는 사주와 초지에 대한 영역을 효과적으로 고려하기 위해 최소거리법을 적용하여 영상을 분류하여 Water Level Point의 수위값을 적용하였다. 사주와 초지영역을 영상정보로부터 추출하여 생성한 지형자료로부터 분석한 하천내 수체적은 영상정보를 활용하지 않은 기존의 지형에 비해 사주는 20%, 초지는 13%의 정확도 개선효과를 나타내었다. 따라서, 영상정보를 연계한 하천지형분석기법은 홍수시 댐하류에 분포하는 사주와 초지영역에 대한 모니터링 및 하천내 수체적 계산에 유용하게 활용될 수 있으리라 판단된다.

• 대한한방내과학회지
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• 제44권3호
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• pp.387-401
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• 2023

Objective: This study was conducted to investigate the preventive effect of herbal medicines on restenosis after percutaneous coronary intervention (PCI) by reviewing randomized controlled trials (RCTs). Methods: RCTs were searched for herbal medicine treatment after PCI using eight online databases (PubMed, CNKI, Wanfang, J-STAGE, OASIS, ScienceON, KTKP, and KISS). Studies that confirmed restenosis through coronary angiography at follow-up were selected according to the inclusion and exclusion criteria. The primary outcome was the restenosis rate, and the secondary outcome was the angina recurrence rate. Data were extracted from the final selected studies according to the research methodology and then analyzed with Review Manager 5.4.1. Study quality was assessed using Cochrane's risk-of-bias (RoB) tool. Results: Of the 252 papers obtained through the primary search, nine studies that met the selection criteria were finally selected. In these nine studies, herbal medicine combined with western medicine was used for the experimental group, and western medicine treatment was used alone for the control group. The meta-analysis result revealed that the restenosis rate and angina recurrence rate were significantly lower in the experimental group than in the control group (RR=0.34, 95% CI: 0.22-0.53, p<0.00001, I²=0% and RR=0.47, 95% CI: 0.29-0.78, p=0.004, I²=0%, respectively). Furthermore, the quality of studies assessed by Cochrane's RoB was low. Conclusions: This study showed that the combined treatment of herbal medicine and western medicine was effective in preventing restenosis and angina after PCI. As the number of papers included in this study was small, a large number of high-quality clinical studies should be considered in the future.

• 한국프랜차이즈경영연구
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• 제8권4호
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• pp.43-54
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• 2017

Purpose - Recently, the meaning and importance of entrepreneurship has been emphasized in order to achieve innovation-led economic growth through entrepreneurship. Various forms of entrepreneurship education have been established centering on universities, and the scale of the entrepreneurship support programs of the government and the private sector has been increasing. Entrepreneurial education can enhance entrepreneurship and promote entrepreneurial intention. The purpose of this study is to examine the effect of experience of entrepreneuship education and social awareness of entrepreneurship on entrepreneurial intention through entrepreneurship, focusing on women who were relatively alienated from entrepreneurial activities. This study will provide suggestions for women's entrepreneurship in the future. Research design, data, and methodology - Recently, the meaning and importance of entrepreneurship has been emphasized in order to achieve innovation-led economic growth through entrepreneurship. Various forms of entrepreneurship education have been established centering on universities, and the scale of the entrepreneurship support programs of the government and the private sector has been increasing. Entrepreneurial education can enhance entrepreneurship and promote entrepreneurial intention. The purpose of this study is to examine the effect of experience of entrepreneuship education and social awareness of entrepreneurship on entrepreneurial intention through entrepreneurship, focusing on women who were relatively alienated from entrepreneurial activities. This study will provide suggestions for women's entrepreneurship in the future. Result - Recently, the meaning and importance of entrepreneurship has been emphasized in order to achieve innovation-led economic growth through entrepreneurship. Various forms of entrepreneurship education have been established centering on universities, and the scale of the entrepreneurship support programs of the government and the private sector has been increasing. Entrepreneurial education can enhance entrepreneurship and promote entrepreneurial intention. The purpose of this study is to examine the effect of experience of entrepreneuship education and social awareness of entrepreneurship on entrepreneurial intention through entrepreneurship, focusing on women who were relatively alienated from entrepreneurial activities. This study will provide suggestions for women's entrepreneurship in the future. Conclusions - Although women's economic activity is increasing, women's activities in the field of business start-up are still passive. The purpose of this study is to examine the effect of entrepreneurship on entrepreneuship education and the social perception of entrepreneurship. As a result, we found that social awareness, entrepreneurship education, and entrepreneurship all had a significant influence on the intention of entrepreneurship. Positive social atmosphere for entrepreneurship induces interest in entrepreneurship education and forms a virtuous cycle structure that fosters entrepreneurship through entrepreneuship education. In addition, the introduction of diverse programs that encourage entrepreneurship should enhance the attractiveness of promising talent to enter the entrepreneurial market.

• 한국프랜차이즈경영연구
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• 제9권3호
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• pp.19-29
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• 2018

Purpose - Due to the increase in coffee consumption and competition, domestic coffee franchise companies are currently entering the overseas market. Therefore, coffee franchise companies are pursuing a variety of marketing strategies to meet customer needs and gain competitive advantage in overseas markets. From this perspective, overseas franchise companies need to ensure that their servicescapes meet the needs of their overseas customers. For these purposes, the study is to identify the impact servicescapes on customer satisfaction and customer loyalty focused on Global Coffee Franchise Company "C", which extended its business worldwide in Mongolia. Research design, data, and methodology - The data were collected from customers who had visited the stores of 'C' company in Ulaanbaatar, Mongolia. 435 valid questionnaires collected through online survey coded and analyzed using frequency, confirmatory factor analysis, correlations analysis, and structural equation modeling with SPSS 24 and SmartPLS 3.0. Result - Firstly, seating comfort, facility aesthetics, and cleanliness, ambient conditions among servicescapes influenced customer satisfaction. Secondly, servicescapes didn't affect the loyalty directly. Third, customer satisfaction had positive effect on loyalty. Fourthly, cleanliness which was ranked lower in Korea had a great effect on customer satisfaction in Mongolia. Fifthly, IPMA(Importance-performance map analysis) shows that the importance of servicescapes is higher for women than for men, and facility aesthetics for female and cleanliness is the most important for male. Conclusions - The results of this study show that there is a positive (+) effect on customer satisfaction in order of cleanliness, ambient conditions, aesthetics, and seating comfort. Therefore, franchise companies considering or advancing into Mongolia should consider importance in order of cleanliness, ambient conditions and aesthetics when entering Mongolia market. For example, franchise managers should select Monday as a "clean day," and all merchants should spend all of their open hours and keep their stores clean in accordance with the head office manual. In addition, franchise managers need to hire a VMD (visual merchandising) experts to build up a physical environment that will effectively highlight the space-specific display of the store so that Mongolian local customers can have a satisfactory climate and aesthetics. And, the IMPA analysis between servicescapes and customer satisfaction shows that women are more susceptible to servicescapes than men. Especially, in the case of women, the importance of esthetics is high, but the performance is low. Thus, if the aesthetics are actively improved, customer satisfaction can be effectively increased.

• 한국프랜차이즈경영연구
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• 제9권2호
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• pp.39-52
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• 2018

Purpose - This study investigates the effect of service quality of coffee shop on store attitude and store loyalty. It demonstrates that the individual's behavior identification level plays a moderating role when the service quality of coffee shop affects store attitude. Conceptually drawing on Brady & Cronin's three-dimensional model of service quality, this study examines the effect of service quality of coffee specialty store on customer's attitudes and loyalty. Also, according to construal level theory, it examines the individual's propensity difference whether the individual's behavior identification level on service quality and store attitude has a moderating effect Research design, data, and methodology - This study used Brady & Cronin's three-dimensional service quality model, and 183 valid cases collected through the questionnaire survey were used for data analyses. For hypothesis testing, regression analysis, multiple regression analysis, and covariance analysis were conducted. Result- As a result of this study, first, it is confirmed that service quality has a positive effect on store attitude toward coffee shop. Second, the difference of an individual's construal level did not have a moderating effect on the influential relationship of service quality on the store attitude of coffee shop. This is because the influence of the service quality is greater than the difference between groups at the construal level. Therefore, there was no moderating influence according to construal level. Third, the store attitude of coffee specialty store has a positive effect on store loyalty. Conclusions - It is confirmed that there is a difference in the effect of service quality and store attitude on general and college students. This suggests that it can be used to establish marketing strategies by segment. And, the college students were found to be more influenced by physical environment quality factor among three dimensions of service quality. Therefore, it is necessary to further improve efforts to raise the level of service quality perception through physical environmental factors such as clean and pleasant environment including the interior of a coffee shop, and internal table arrangement. The empirical study on the moderating effects of customer's tendency of difference is meaningful in the absence of empirical studies.