• Journal of Korea Trade
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• 제27권2호
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• pp.77-95
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• 2023

Purpose - This study aims to identify the importance of subsidiary entrepreneurship as a key factor when MNE attempts to invest in challenging overseas markets. Through the simultaneous consideration of institutional theory and entrepreneurship theory, this study would like to examine how Korean subsidiaries in the Middle East improve their performance locally. Design/methodology - To reflect the characteristics of emerging markets, this study conducted a survey of Korean subsidiaries in the Middle East in cooperation with KOTRA and analyzed the hypotheses using a structural equation model based on 249 valid responses. Findings - The findings of this study are as follows. First, we found that institutional and business distance would positively affect subsidiaries' entrepreneurship. The result that subsidiaries' entrepreneurship is positively affected by institutional and business distance implies that attempts to close the difference between heterogeneous markets would increase subsidiaries' innovative proactiveness, such as R&D and creative marketing strategies. Second, we confirmed that the institutional and business distance positively mediate the subsidiaries' entrepreneurship growth, leading to high performance. Therefore, Korean subsidiaries are required and prepared to establish strategies to better understand institutional and business distances in advance and reduce the liability of foreignness by conducting customized research and training programs before sending Korean expatriates to local subsidiaries in the Middle East. Originality/value - This study contributed to institutional and entrepreneurship theory by proving the traditional relationship between institutional and business distance to subsidiaries' performance and the mediation of subsidiary entrepreneurship.

• 한국음향학회지
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• 제3권1호
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• pp.25-35
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• 1984

This paper analysis the Dynamic Time Warping algorithms for time normalization of speech pattern and discusses the Dynamic Programming algorithm for spoken Korean isolated digits recognition. In the DP matching, feature vectors of the reference and test pattern are consisted of first three formant frequencies extracted by power spectrum density estimation algorithm of the ARMA model. The major differences in the various DTW algorithms include the global path constrains, the local continuity constraints on the path, and the distance weighting/normalization used to give the overall minimum distance. The performance criterias to evaluate these DP algorithms are memory requirement, speed of implementation, and recognition accuracy.

• International Journal of Internet, Broadcasting and Communication
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• 제13권4호
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• pp.129-134
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• 2021

Since the first semester of 2020, domestic and overseas universities mostly provided untact online classes and limitedly provided face-to-face classes due to COVID-19 in operating courses. The convergence subjects provided in undergraduate courses attach importance to contents-centered, design-based, hands-on education, and field experience. In the situation where online education was not revitalized, instructors in charge of convergence subjects had difficulty in developing online class materials, and students' satisfaction with the classes was not high. Especially, a problem was raised that students taking the convergence subjects that included practice had difficulty in communicating with the instructors. We would investigate the present condition of distance learning in domestic universities, which came suddenly due to the global pandemic of infectious disease and make suggestions for effective distance learning in the coming era of Metaverse by emphasizing the interaction and communication between instructors and learners through an analysis of distance learning of a convergence subject.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2022년도 춘계학술대회
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• pp.363-364
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• 2022

The COVID-19 pandemic had substantial negative impacts and caused several disruptions to the global supply chain of the shipping industry. The key challenges identified in terms of maritime manpower are the Certificates of Competency (CoC) or the expiration and/or failure to complete refresher and/or revalidation courses, which directly hinder employment retention and lost opportunities at sea. To tackle this issue directly and swiftly, the creation of the APEC SEN Distance Learning Platform was suggested and approved by APEC as part of an official project. This paper introduces the APEC-wide accessible distance learning platform with the following key topics: the organisation and operation of the platform, the themes and content to be prioritised, the process of education, training, certification, and the ways to promote accreditation, mutual recognition on CoC, education and training videos by taking collaborative actions, and the development of content.

• Journal of information and communication convergence engineering
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• 제14권2호
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• pp.129-135
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• 2016

In this paper, we present a novel algorithm for image-based maritime obstacle detection using global sparsity potentials (GSPs), in which "global" refers to the entire sea area. The horizon line is detected first to segment the sea area as the region of interest (ROI). Considering the geometric relationship between the camera and the sea surface, variable-size image windows are adopted to sample patches in the ROI. Then, each patch is represented by its texture feature, and its average distance to all the other patches is taken as the value of its GSP. Thereafter, patches with a smaller GSP are clustered as the sea surface, and patches with a higher GSP are taken as the obstacle candidates. Finally, the candidates far from the mean feature of the sea surface are selected and aggregated as the obstacles. Experimental results verify that the proposed approach is highly accurate as compared to other methods, such as the traditional feature space reclustering method and a state-of-the-art saliency detection method.

• 한국콘텐츠학회논문지
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• 제6권10호
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• pp.53-61
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• 2006

교차문화적 관점에서 보면 일국의 문화, 그리고 현지국 소비자가 가지고 있는 가치관과 태도는 글로벌 마케팅 전략에 중요한 영향을 미치고 있다. 본 연구는 한국 소비자들이 지각하는 소비자 자민족 중심주의와 문화적 친근성이 심리적 거리와 국가이미지, 그리고 경쟁적 브랜드선택에 미치는 영향관계를 분석한다. 자료는 대인면접을 통해 수집하였으며, 총 234명의 응답이 최종분석에 사용되었다. 본 연구의 결과는 다음과 같다. 첫째, 문화적 친근성은 심리적 거리에는 부의 영향, 국가이미지에는 정의영향을 미치는 것으로 조사되었다. 둘째, 소비자 자민족 중심주의는 심리적 거리와 국가이미지에 영향을 미치는 것으로 조사되었다. 마지막으로 국가이미지는 경쟁적 브랜드 선택에 부의 영향을 미치는 것으로 조사되었으나 심리적 거리는 영향을 미치지 않았다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제15권3호
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• pp.932-951
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• 2021

The effectiveness of testing in Model-based Testing (MBT) for Software Product Line (SPL) can be achieved by considering fault detection in test case. The lack of fault consideration caused test case in test suite to be listed randomly. Test Case Prioritization (TCP) is one of regression techniques that is adaptively capable to detect faults as early as possible by reordering test cases based on fault detection rate. However, there is a lack of studies that measured faults in MBT for SPL. This paper proposes a Test Case Prioritization (TCP) approach based on dissimilarity and string based distance called Last Minimal for Local Maximal Distance (LM-LMD) with Dice-Jaro-Winkler Dissimilarity. LM-LMD with Dice-Jaro-Winkler Dissimilarity adopts Local Maximum Distance as the prioritization algorithm and Dice-Jaro-Winkler similarity measure to evaluate distance among test cases. This work is based on the test case generated from statechart in Software Product Line (SPL) domain context. Our results are promising as LM-LMD with Dice-Jaro-Winkler Dissimilarity outperformed the original Local Maximum Distance, Global Maximum Distance and Enhanced All-yes Configuration algorithm in terms of Average Fault Detection Rate (APFD) and average prioritization time.

• 무역학회지
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• 제46권2호
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• pp.161-175
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• 2021

The purpose of this study is to empirically analyze the effect of cultural distance between partner firms on international joint venture performance, focusing on the moderating effects of the conflict resolution techniques and the competitive relationship between partner firms. We tested hypotheses based on joint venture firms that were surveyed which formed by equity investment between Korean and foreign firms in the manufacturing industry. The empirical analysis results of this study are as follows. First, in international joint ventures, the cultural distance between partner firms was found to have a negative effect on the international joint venture performance, and the higher the cultural distance, the lower the joint venture performance. Second, it was found that constructive conflict resolution techniques weaken the negative impact of the cultural distance between partner firms in international joint ventures on the performance of international joint ventures. Third, competitive relationship between international joint venture partners showed no moderating effect on the relationship between cultural distance and international joint venture performance.

• 제어로봇시스템학회논문지
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• 제12권10호
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• pp.955-961
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• 2006

The global ultrasonic system for the self-localization of a mobile robot consists of several ultrasonic transmitters fixed at some reference positions in the global coordinates of robot environment. By activating the ultrasonic transmitters, the mobile robot is able to get the distance to the ultrasonic transmitters and compute its own position in the global coordinate. Due to the limitation on the ultrasonic signal strength and beam width as well as the environmental obstacles however, the ultrasonic signals from some generator may not be transmitted to the robot. Thus, instead of activating the all ultrasonic transmitters, it is necessary to select some ultrasonic generators to activate based on the current robot position. In this paper, we propose a selective activation algorithm for self-localization with the global ultrasonic system. The selective activation algorithm gets the meaningful ultrasonic data at every sampling instants, which results in the faster and more accurate response of the self-localization than the conventional sequential activation. Through the self-localization and path following control, we verify the effectiveness of the proposed selective activation algorithm.

• 한국융합학회논문지
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• 제10권9호
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• pp.273-281
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• 2019

본 연구는 여자 필드하키 선수를 대상으로 GPS를 활용하여 훈련 또는 시합 동안 발생하는 움직임을 정량화하고 비접촉성 하지부상과 관련된 변인에 대해 부상 발생위험도를 확인하고자 하였다. 골키퍼를 제외한 52명의 국가대표 선수를 대상으로 훈련 또는 시합 동안 발생하는 움직임을 GPS를 통해 측정한 후 각 변인에 대해 1주간과 4주간 평균을 산출하였고, 비접촉성으로 발생하는 하지부상 경험과 관련된 GPS변인에 대해 움직임 강도의 범위에 따른 하지부상 발생위험도를 산출하였다. 그 결과, 공격수는 1주간 총 뛴 거리와 높은 속도로 뛴 횟수의 약간 낮은 범위 및 높은 속도로 뛴 거리에서는 높은 범위의 부상 발생위험도가 가장 낮게 나타났고, 4주간의 높은 속도로 뛴 거리에서는 움직임의 강도가 증가함에 따라 위험도가 감소하였다. 미드필더는 1주간 총 뛴 거리와 높은 속도로 뛴 거리, 높은 속도로 뛴 횟수 및 감속 횟수의 낮은 범위에서 위험도가 가장 낮게 나타났고, 수비수는 하지부상 유무에 따른 움직임의 차이를 보이지 않았다.