• KSII Transactions on Internet and Information Systems (TIIS)
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• 제11권8호
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• pp.4133-4145
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• 2017

Advances in science and technology are driving us to the better life but also forcing us to make more investment at the same time. Therefore, the government has provided the investment to carry on the promising futuristic technology successfully. Indeed, a lot of resources from the government have supported into the science and technology R&D projects for several decades. However, the performance of the public investments remains unclear in many ways, so thus it is required that planning and evaluation about the new investment should be on data driven decision with fact based evidence. In this regard, the government wanted to know the trend and issue of the science and technology with evidences, and has accumulated an amount of database about the science and technology such as research papers, patents, project reports, and R&D information. Nowadays, the database is supporting to various activities such as planning policy, budget allocation, and investment evaluation for the science and technology but the information quality is not reached to the expectation because of limitations of text mining to drill out the information from the unstructured data like the reports and papers. To solve the problem, this study proposes a practical text mining methodology for the science and technology trend analysis, in case of aerospace technology, and conduct text mining methods such as ontology development, topic analysis, network analysis and their visualization.

• 유통과학연구
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• 제14권10호
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• pp.147-152
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• 2016

Purpose - High quality films are affected by both the production stage and various variables such as the size of the movie investment and marketing that changes consumers' perceptions. Consumer preferences should be recognized first to ensure that the movie is successful. If a film is produced without pre-investigation and analysis of consumer demand and taste, the probability of success will be low. This study investigates the balance of production costs, marketing costs, and profits using game theory, suggesting an optimization strategy using the simplex method of linear programming. Research design, data, and methodology - Before the release of the movie, initial demand is assumed to be driven largely by marketing costs. In the next phase, demand is assumed to be driven purely by a movie's production cost and quality, which might also further determine consumer demand. Thus, it is essential to determine how to distribute pure production costs and other costs (marketing) in a limited movie production budget. Moreover, it should be taken into account how to optimally distribute under the assumption that the audience and production company's input resources are limited. This research simplifies the assumptions for large-scale and relatively small-scale movie investments and examines how movie distribution participant profits differ when each cost is invested differently. Results - When first movers or market leaders have to choose both quality and marketing, it has been proven that pursuing a strategy choosing only one is more likely than choosing both. In this situation, market leaders should maximize marketing costs under the premise that market leaders will not lag their quality behind the quality of second movers. Additionally, focusing on movie marketing that produces a quick effect while ceding creative activity to increase movie quality is a natural outcome in the movie distribution environment since a cooperative strategy between market competitors is not feasible. Conclusions - Government film development policy should ignore quality competition between movie production companies and focus on preventing marketing competition. If movie production companies focus on movie production quality improvement then a creative competition would ensue.

• 항공우주정책ㆍ법학회지
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• 제33권2호
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• pp.345-366
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• 2018

국제민간항공협약 37조는 ICAO에서 제정하는 국제표준 및 권고에 따라 각국의 사정에 맞는 입법을 할 것을 요구하고 있다. 국제표준 및 권고는 매년 개정되고 있으므로 각 회원국은 적기에 해당 내용을 자국 항공법규에 반영할 필요가 있다. 최근에는 데이터 기반 국제표준이 만들어지고 있으며 그 이유는 인적요소를 주축으로 하여 사고예방을 위해서는 항공안전 데이터와 정보에 기반한 입법이 중요하게 되었기 때문이다. 데이터 기반 입법의 예로 안전관리시스템과 승무원 피로위험관리시스템이 검토 되었다. 안전관리시스템은 부속서 19가 2013년 채택되었으며 관련 매뉴얼 제5장에는 안전데이터의 수집과 분석 시스템에 기술되어 있다. 안전데이터와 정보의 분석을 통하여 의사결정권자는 데이터에 기반한 결정을 할 수 있다. 대한민국은 항공안전법 제58조에 따라 모든 항공사, 정비업체, 공항공사 등이 안전관리시스템을 도입하고 이행하여야 한다. 이러한 안전관리시스템을 뒷받침하기 위해서는 의무보고와 자발적 안전보고 시스템이 활성화 될 필요가 있으며 현재까지는 안전관리시스템 도입 위반에 대한 행정처분 기준은 아주 미미한 상태이다. 미국과 유럽도 안전관리시스템의 적절한 입법을 위하여 다양한 규정이 개발되어 시행되고 있다. 피로위험관리시스템의 경우 2009년 Colgan 항공기 추락을 계기로 미국교통안전위원회는 미연방항공청에 조종사 피로위험을 확인하고 관리할 수 있는 시스템 구축을 권고하였으며 2010년 미연방항공청에서 발행한 입법예고에는 약 8,000여개의 제안이 있었다. 2011년 최종법안이 통과되었으며 조종사의 조종사가 업무를 시작한 시간, 보조 승무원의 탑승여부, 휴식시설의 등급 등에 따라 승무시간을 차등 적용하는 입법이 이루어지게 되었다. 이러한 입법과정에 수많은 데이터와 정보가 분석되었으며 그 내용이 승무시간에 반영되었다. 최종 입법이 이루어지기 이전에 비용 대비 효과 분석이 실시되었으며 10년간 운영할 경우 비용보다는 효과가 더 크다는 결론이 이루어졌다. 대한민국도 승무원 피로위험 관련 항공안전법 조항이 있으며 항공사는 전통적인 승무시간 제한 방법 또는 피로위험관리시스템 둘 중 하나를 선택할 수 있다. 데이터 기반 입법을 위하여 미국의 경우 항공입법위원회를 구성하여 운영하고 있는데 이는 대한민국에도 도입이 필요한 내용이며 유럽에서 시행하고 있는 D4S도 고려할 만한 시스템이다. 비용 대비 효과 분석은 입법을 견고하게 할 수 있어 필요하다고 판단되며 데이터 기반 입법의 실효성을 제고하기 위해서는 전문 인력의 보강, 보다 자세한 점검표 작성 등이 필요하다.

• 대한임상검사과학회지
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• 제44권4호
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• pp.178-183
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• 2012

We investigated the latest trend of u-Health and relations with clinical technologist. Since 2000, Korea has become an aging society. Korea will become an aged society by 2018, and it is expected to enter the ultra-high aged society by 2026. Increase in over 65 years population means that the desire of medical service and care demand for the elderly is greatly required. In addition, many predicted Korean national health insurance would falter financially. Medical suppression policies and regulations are also amended continuously. U-Health based on the IT industry and development of related technologies and industries contains the variety concepts of telemedicine, telehealth, e-health, u-healthcare and POCT. Especially, the use of POCT supplied quick clinical examination is extending steadily in medical center and hospital, which will generate the field friction between nurses and medical technologists. In the transition situation from provider-centric service to consumer-driven health care system, this study recommended the principal role and correspondence of clinical laboratory workers and offered information about changes in healthcare market and the basic concept of expert system, measurement and the diagnosis principle to clinical technicians throughout the investigation of the recent research and government policy trends.

• 한국산업융합학회 논문집
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• 제22권5호
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• pp.475-481
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• 2019

The paradigm of convergence R&D is shifting from the convergence of technologies to the convergence of solutions to solve the complex problems of scientific and social development. On the other hand, it is prevalent that there is a lack of convergence in our research field. Although Korea has invested heavily in fusion research and development, Korea has mainly focused on the application and development of technology, so failed to plan convergence R&D in line with the new paradigm. Therefore, in this study, we searched for convergence R&D area that is being done to solve social problems, and tried to make use of data-driven objective methods. For this purpose, we used the investment information of global R&D projects that had no retrospective properties and derived the convergence R&D area related to coastal flooding.

• 유통과학연구
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• 제12권12호
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• pp.83-92
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• 2014

Purpose - A business ecosystem refers to mutually dependent systems interconnected by a loose foundation of various ecosystem members such as customers, suppliers, partners, and other stakeholders. The ecosystem-based strategy attempts to achieve competitive advantage for firms by enriching a business ecosystem or building a sustainable business ecosystem through the collaboration and co-evolution of its members. A sustainable business ecosystem is a source of competitiveness for firms anda manageable resource for gaining a competitive advantage. Customers represent the core membership of the business ecosystem and play a pivotal role in building a sustainable business ecosystem. This study examines the effects of customer participation on economic and social value in the business ecosystem and suggests a course of action for building a sustainable business ecosystem. Research design, data, and methodology - Two business cases of South Korea are selected from two different business types: business-to-business (B2B) and business-to-customer (B2C) firms. Business ecosystems for B2B and B2C firms reflect contrasting characteristics. Data was collected from in-depth interviews with four representatives of four firms. Results - The study suggested seven propositions for the relationships between customer participation and a sustainable business ecosystem through multiple case studies based on in-depth interviews. The results reveal the following four strategic actions for building sustainable business ecosystems based on the suggested propositions: alignment, systemization, socialization, and co-evolution. Alignment refers to achieving a harmonic balance or virtuous circle among the firm's mission, investment, and value creation. Systemization refers to building and implementing management and infrastructure systems rooted in the corporate culture. Socialization of customers in the business ecosystem reinforces the harmony or virtuous cycle. Finally, co-evolution is associated with the relationship between firms and customers as buyer firms in a restricted business ecosystem. Conclusions - This study considers multiple cases for the execution of a sustainable business ecosystem in collaboration with customers and suggests seven propositions and four strategic actions. The results are based on qualitative data from interviews with business associates from two firms in an open business ecosystem and two firms in a restricted business ecosystem, both in South Korea. Our research results regarding two contrasting business ecosystems shed light on business issues and policy making in Asian business environments, which are in the transition stages from a traditional conglomerate-driven to an inclusive growth-driven economy. The business ecosystem itself should be considered a manageable resource for firms' competitive positions in the market. A customer is a member of the business ecosystem and should thus be viewed not only as a purchasing entity and an object of relationship management but also as a co-creator of value. Therefore, firms should collaborate with customers to build sustainable business ecosystems. For this, firms must create social value, which cannot be created by customers alone, within the business ecosystem. Then, customers participate in a business ecosystem and build it to be favorable to them. Implications for academics and practitioners were suggested.

• 과학기술학연구
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• 제4권1호
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• pp.31-57
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• 2004

네이스를 둘러싼 논란은 네이스의 구축과 이용에서 빚어질 수 있는 인권침해에 관한 우려에서 비롯되었다. 네이스처럼 엄청난 양의 개인정보를 집적해서 이용하는 정보망은 언제나 심각한 인권침해의 우려를 안고 있다. 그러나 교육부는 정보기술의 도구적 효율성에 현혹되어 '빅 브라더'가 되지 않도록 최선을 다해야 할 의무를 사실상 저버리려고 했다. 또한 네이스는 '전자정부'라는 이름으로 강력하게 추진되고 있는 한국의 정보화 정책이 안고 있는 문제를 잘 보여준다. 한국의 정보화 정책은 정보기술의 경제적 가능성을 무엇보다 강조하는 국가주의적 경제성장정책의 성격을 강하게 가지고 있다. 이런 상황에서는 인권의 보호보다는 이윤의 추구가 더 중요하게 여겨지기 십상이다. 인권을 먹이로 정보자본주의를 육성하게 되는 것이다. 네이스의 문제를 바로잡기 위해서는 네이스 자체를 넘어서 전자정부의 추진과 관련되는 이러한 의혹을 밝혀야 한다. 네이스 논란은 인권에 대한 무시 혹은 경시를 낳은 역사에 대한 관심으로 이런 역사의 가장 중요한 산물인 주민등록제도의 개혁으로 그리고 독립적 개인정보보호법의 제정과 개인정보보호기구의 창설로 이어져야 한다.

• Management Science and Financial Engineering
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• 제14권1호
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• pp.23-34
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• 2008

In this study, we consider stationary waiting times in a Poisson driven single-server m-node queues in series. We assume that service times at nodes are independent, and are either deterministic or non-overlapped. Each node excluding the first node has a finite waiting line and every node is operated under a FIFO service discipline and a communication blocking policy (blocking before service). By applying (max, +)-algebra to a corresponding stochastic event graph, a special case of timed Petri nets, we derive the explicit expressions for stationary waiting times at all areas, which are functions of finite buffer capacities. These expressions allow us to compute the performance measures of interest such as mean, higher moments, or tail probability of waiting time. Moreover, as applications of these results, we introduce optimization problems which determine either the biggest arrival rate or the smallest buffer capacities satisfying probabilistic constraints on waiting times. These results can be also applied to bounds of waiting times in more general systems. Numerical examples are also provided.

• ETRI Journal
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• 제34권3호
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• pp.308-318
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• 2012

As mobile markets in most developed countries are rapidly coming close to saturation, it is increasingly challenging to cover the cost of providing the network, as revenues are not growing. This has driven mobile operators, thus far mostly involved in facility-based competition, to turn their attention to network sharing. There exist various types of mobile network sharing (MNS), from passive to active sharing. In this paper, we propose a model, based on the supply-demand model, for evaluating the economic effects of using six types of MNS. Our study measures the economic effects of employing these six types of MNS, using actual WiBro-related data. Considering lower service price and expenditure reduction, the total economic effect from a year's worth of MNS use is estimated to be between 513 million and 689 million USD, which is equal to three to four percent of the annual revenue of Korean mobile operators. The results of this study will be used to support the establishment of a MNS policy in Korea. In addition, the results can be used as a basic model for developing various network sharing models.

• 유통과학연구
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• 제19권4호
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• pp.37-51
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• 2021

Purpose: The purpose of this study is to provide a basis for establishing a policy to promote the export of Korean goods through the economic ripple effect of the Korean Wave. From 2001 to 2017, cultural goods exports and consumer goods exports data to 102 countries were used to estimate the effect of cultural goods exports on domestic consumer goods exports. Research design, data and methodology: Based on the Gravity Model, we analyzed the effects of domestic film, publishing, music, broadcasting, clothing, cosmetics, processed food, IT products, and automobiles on the export of consumer goods. Results: The empirical analysis estimated the trade creation effect of exports of cultural products driving exports of consumer goods and found that a 1% increase in exports of cultural products increased 0.136% in exports of consumer goods. Conclusions: The average rate of change in consumer goods exports due to changes in cultural product exports was 22.44, which could be interpreted as an increase of $2,244 in exports of consumer goods such as IT products, cosmetics, clothing, and processed foods. According to the analysis of export-driven effects of each consumer item by dividing cultural products by sector, the effects of export of processed foods, clothing, cosmetics, IT products, and film, music, publishing exports were statistically significant.