• 전자공학회논문지CI
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• 제44권3호
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• pp.81-89
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• 2007

MPI(message passing interface) 기반 PC 클러스터 상에서 병렬분산 GHT(generalized Hough transform)를 모델화하고 시간 분석하여 고속화 구현하였다. 파이프라인 방송(pipelined broadcast) 통신방식과 누산기 배열(accumulator array) 분할 처리정책을 사용함으로써 통신부담을 최대한 줄였고, 전체 처리 과정에 걸쳐 통신과 계산처리를 시간 중첩시켜 구현함으로써 최대한의 속도제고를 하였다. 100 Mbps Ethernet 스위치를 이용하여 MPI 기반 PC 클러스터를 구현하고 제안한 병렬분산 GHT를 실험하여 선형에 가까운 속도 제고율 (speedup)을 확인하였다.

• Architectural research
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• 제13권1호
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• pp.3-9
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• 2011

To design and construct a museum of art involves the interest of artists, architects, curatorship, management, and local government. More than this direct relationship, museum obliges the public a mission of delivering genuine public experience through art and architecture. However, most of Modern and contemporary architecture has not delivered genuine public experience of integrated art and architecture. Conceptual message of art and perceptual architectural exhibition space has not been integrated easily. Picture frame canvas initiated this schism and institutionalized museum management hampered the creativity of artists. This schism was overcome through artists' questioning of museum culture and creative works that embrace work and its environment. In contemporary culture, installation art and media art necessitates a new museum format which needs not only exhibition, but laboratory and interface space with viewers. This paper will regroup the existing museum according to its use and strategy, and reinterpret progressive museums that fosters young artists, and more than this, will introduce successfully established museums for new forms of art, which are equipped with versatile exhibition spaces, innovative interface between works and viewers, and own laboratory that can produce works of art. These examples will envision a creative method of art and architecture production that can achieve genuine public experience.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제13권10호
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• pp.5144-5160
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• 2019

Secret sharing is an effective way of protecting secret messages. However, the traditional secret sharing schemes are considered meaningless due to malicious people attention which might raise risks. To overcome the weakness, this paper presents an effective secret sharing scheme with the functionality of cheater identification, based on meaningful QR code. The secret message will be split and concealed in the padding region of cover QR codes with the assistance of Latin square and it can be completely restored when all the involved participants cooperate. The concealing strategy exploits the characteristic of Reed-Solomon (RS) code to ensure the strong robustness of generated QR code pseudo-shares. The meaningful QR code pseudo-shares help to reduce the curious of unrelated persons. Some experiments were done to evaluate the performance of proposed scheme. The results showed that the proposed scheme is feasible, efficient and secure compared to the other existing schemes. It also achieves a higher secret payload and maintains stronger robustness.

• The Journal of Asian Finance, Economics and Business
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• 제7권11호
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• pp.439-447
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• 2020

The dynamics of communications powered by the Internet, specifically from the increased use of social media, has led marketers to find creative channels to engage with the customers. One of the recent channels, "branded entertainment", is becoming familiar as an advertising strategy in which the content presented is a marketing tool for the advertising of certain brands. The current study examined the case of a branded-entertainment channel and the mechanism of the advertising instrument that leads to purchase intention. The specific purpose of this research is to investigate whether there is evidence of the role of narrative transportation and the fantasy proneness leading towards purchase of the brand advertised. To arrive at the conclusion, the study using web series sponsored by an artificial sweetener brand and employs a quantitative survey to question the audience. The findings contribute toward the understanding of how consumers respond to branded entertainment via video-sharing platforms. It is indicated that the stories presented in the web series can stimulate the audience to fantasize. Thus, the advertising message conveyed through narrative persuasion can form a favorable attitude toward the brand, which leads to intention to purchase. Practical elements are identified along with limitations and future research suggestions.

• 한국정보처리학회논문지
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• 제7권1호
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• pp.57-64
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• 2000

본 논문에서는 MPI 기반이 성층${\cdot}$회전 난류 시뮬레이션을 위한 LES코드의 기법에 대해 연구하며 그 결과를 실험한다. 본 논문에서는 병렬화 기법을 위해서 순차 LES코드에 내재되어 있는 Tridiagonal solver의 제거를 통한 병렬화의 성능 향상과 포아선 방정식의 병렬화를 위한 영역 분할 방법을 소개한다. 또한 본 논문에서 연구되어진 병렬 LES 코드를 슈퍼컴퓨터에서 다양한 영역 분할에 대한 실험을 수행하며 그 결과에 대해 나타낸다. 실험 환경은 CRAY-T3E에서 수행하였으며, 다양한 영역 분할에 대해 프로세서의 개수를 변화시키며 수행속도와 그에 따른 속도의 향상을 측정하였다. 그 결과 단일 프로세서에서 순차 LES를 수행하는 것보다 병렬 LES코드에서 최고 16배에 해당되는 속도의 향상의 결과를 얻을 수 있었다.

• 마케팅과학연구
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• 제11권
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• pp.79-101
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• 2003

본 연구는 한국회사와 미국회사의 웹사이트의 상호작용, 비교광고 및 기술사용에 대한 미교문화적분석을 시도하는 것이다. 고관여와 저관여, 권력간격 그리고 개인주의-집단주의를 문화분석기준을 이용하여 분석함으로써 한국과 미국의 웹사이트의 상호작용을 비교 평가하였다. 본연구의 결과에 의하면 미국의 웹사이트들은 고객-메세지와 고객-광고주의 상호작용을 강조한 반면에 한국의 웹사이트는 고객-고객의 상호작용을 강조하고있는 것으로 발견되었다. 비교광고에 대한 연구결과에 의하면 미국의 개인주의와 한국의 집단주의에 대한 편향성때문에 미국 웹사이트은 한국 웹사이트들과 비교하여 직, 간접적인 비교광고를 더욱 많이 사용하는 것을 발견하였다. 기술분석의 결과에 의하면 두 나라의 웹사이트들은 이 분야에있어서 차이가 없는 것으로 나타났다.

• 산경연구논집
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• 제5권4호
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• pp.23-29
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• 2014

Purpose - This thesis aims to propose a method to help financial institutions improve their customers' convenience online and offline through a Bluetooth based App using the tool of a beacon. The emergence of smartphones in the 21st century and their increasing use makes it possible to search for information easily. Research design, data, and methodology - With the short-distance Bluetooth technology for smartphones, which finds users within a radius of 50m to provide the functions of message transmission and mobile payment, users can access information services and use mobile coupons in certain premises. Thus, beacon-based O2O technology has been developed. Results - This study offers a method of attracting customers through an O2O marketing strategy that overcomes the existing limitations of Web and Offline media. Conclusions -Since beacon technology has the advantage of more accurate positioning than GPS, financial institutions provide their product information for users through the basic function of a beacon, using an O2O (Online to Offline) marketing solution and, therefore, effectively enable customers to make relevant payments online and conduct their financial actions offline.

• Journal of Contemporary Eastern Asia
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• 제18권1호
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• pp.30-48
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• 2019

China has initiated a series of "economic sanctions" against South Korea, affecting Korean pop stars visiting China and Korean investments in China. Sanctions were imposed on South Korea in response to the decision of South Korea to deploy Terminal High Altitude Area Defense (THAAD) in 2016. Furthermore, the Global Daily assembled local population to boycott Korean products and investments in China. However, the Chinese Foreign Ministry has never positively confirmed these activities as economic sanctions to South Korea related to the THAAD installation. In other words, the Chinese government singled a relatively weak message via these sanctions to South Korea. As a result, the THADD implementation continued in South Korea. In the paper, I interpret China's rationale to impost puzzling economic sanctions, which have a weak resolution, to South Korea and Taiwan. As signaling theory argues, economic sanctions with insufficient resolution, which are more likely to fail, is a more provocative foreign policy. By reviewing China's sanctions usage to South Korea and Taiwan, I propose arguments of bureaucratic competition to answer why China launched such sanctions to other countries: those are caused by domestic institutions who are seeking reward from the Communist Party of China. By comparing shifts of leadership between domestic agencies, the paper provides evidence to support the proposed argument. I also include two alternative explanations to strengthen the proposed argument, albeit connecting the paper with other two larger streams of research, which address analyses of China's aggressive foreign policies as well as the domestic politics of economic sanctions.

• Journal of Contemporary Eastern Asia
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• 제19권2호
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• pp.125-147
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• 2020

On the World Refugee Day in 2017, Yao Chen, a Chinese actress, philanthropist, and social media influencer, posted messages in her Weibo in support of the United Nations Refugee Agency (UNHCR). Yet, social media users quickly interpreted this supportive message of the refugee program as encouraging people to "accept and receive refugees" (jieshou nanmin) into China. Particularly, the category of Middle Eastern refugees elicited most criticism in China's cyberspace. As the inclusion of refugees is an integral part of immigrant multiculturalism, this article examines the limits of multicultural imagination of refugees―particularly those from the Middle Eastern and North Africa―in contemporary China. I argue that the limits of multicultural imagination in contemporary China is profoundly shaped by an intricate interweaving of domestic policies and global imaginaries toward refugees. By deploying a mixed methodology, such limits are examined from legal-institutional, ideological, and sociocultural perspectives. More specifically, three interrelated aspects will be highlighted in the article: (1) the global circulation of right-wing populism imaginaries, and their entanglements with the anti-Muslim sentiments in contemporary China; (2) the current insufficiency of the legal-institutional framework regarding refugees and asylum-seekers, which needs to be contextualized in China's modern history of dealing with refugee issues; (3) population politics, the rise of Han-centric nationalism, and their constraining impact on the interpretation of historical events related to cultural diversity. In conclusion, this article also offers potential implications for further examining the different yet potentially intersected genealogies of multicultural imaginaries beyond the Middle Eastern and North African refugees in Asia.

• Journal of Contemporary Eastern Asia
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• 제19권2호
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• pp.234-263
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• 2020

This study aims to assess the quality of the EU's public diplomacy efforts through social media. Specifically, this research explores the headquarters of European public diplomacy (European External Action Service, EEAS) and its subordinate agent (EU Delegation to South Korea, EUDK). The main research question is "how coherently and effectively does the EU execute public diplomacy strategies in the third countries?'' This study employs both quantitative and qualitative approaches―the former for the results presentation and the latter for the results interpretation. The results are summarized in two points. First, both the EEAS and the EUDK maintained an objective position by posting only neutral perspectives on their social media. Second, the narratives of the main actors were the same, but the main themes were different according to their contexts. The analysis discusses the effectiveness of the EU's strategic narratives by focusing on measuring message reception. Its limited findings were that social media postings could not induce the audiences' active discussion of the EU's diplomatic performances. The conclusion suggests that the EU should identify the expectations from its global counterparts and use these to forge the Union's strategic narratives.