• 지역사회간호학회지
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• 제15권4호
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• pp.528-538
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• 2004

Purpose: This study was conducted to investigate the level of awareness about health education in the manpower of public health center. in order to suggest a basis data for the development of a job-training program. Method: The subjects were 96 manpowers of public health centers. Data were collected from August 2nd. 2002 to September 20th using a self reported questionnaire survey. The data were analyzed using frequency. percentile and $x^2-test$. Results: The most necessary of health education according to health promotion service is 'quitting smoking' during the adolescent period. The most necessary of health education media according to health promotion service is 'reducing alcohol intake'. The most efficient media of health education is 'beam projector'. The most necessary capacity of health educator is 'planning capacity of health education'. The most necessary support implementing health education is 'manpower supply'. Conclusion: The level of awareness of health education in the manpower of the public health center are expected to provide basic data for developing job-training programs that might improve advanced knowledge and techniques of health education.

• 인터넷정보학회논문지
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• 제24권5호
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• pp.97-106
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• 2023

Citizens' demand for public CCTVs continues to rise, along with an increase in variouscrimes and social problems in cities. In line with the needs of citizens, the Seoul Metropolitan Government began installing CCTV cameras in 2010, and the number of new installations has increased by over 10% each year. As the large surveillance system represents a substantial budget item for the city, decision-making on location selection should be guided by reasonable standards. The purpose of this study is to improve the existing related models(such as public CCTV priority location analysis manuals) to establish the methodology foranalyzing priority regions ofSeoul-type public CCTVs and propose new mid- to long-term installation goals. Additionally, using the improved methodology, we determine the CCTV priority status of 25 autonomous districts across Seoul and calculate the goals. Through its results, this study suggests improvements to existing models by addressing their limitations, such as the sustainability of input data, the conversion of existing general-purpose models to urban models, and the expansion of basic local government-level models to metropolitan government levels. The results can also be applied to other metropolitan areas and are used by the Seoul Metropolitan Government in its CCTV operation policy

• 사물인터넷융복합논문지
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• 제8권1호
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• pp.37-43
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• 2022

인공지능 기술의 가장 큰 근간은 학습 가능한 데이터이다. 최근 정부나 사기업에서 수집·생산하는 데이터의 종류와 양이 기하급수적으로 증가하고 있지만, 실제 기계학습에 활용 가능한 데이터의 확보로는 아직까지 이어지지 않고 있다. 이에 본 연구에서는 기계학습에 실제 활용 가능한 데이터가 갖추어야 할 조건에 대해 논의하고, 실제 사례연구를 통해 데이터 품질을 저하시키는 요인을 파악한다. 이를 위해 공공빅데이터를 활용해 예측 모델을 개발한 대표사례를 선정, 공공데이터포털로부터 실제 문제 해결을 위한 데이터를 수집 후 데이터 품질을 확인하였다. 이를 통해 유효한 데이터 선별 기준을 적용하고 후처리한 결과와의 차이를 보인다. 본 연구의 궁극적인 목적은 인공지능의 핵심인 기계학습 기술 개발에 앞서 가장 근본적으로 선결되어야 할 데이터 품질을 관리하고 유효한 데이터를 축적하기 위한 기반 마련에 있다.

• 보건행정학회지
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• 제25권4호
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• pp.295-306
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• 2015

This study aims to examine the performance of public municipal hospitals through the analysis of data envelopment analysis, efficiency, profitability, and publicness by using panel data during period from 2006 to 2010. The main findings of the study are as follows. First, as a result of efficiency analysis during the period from 2006 to 2010, it was revealed that the number of staff by each job category, labor cost ratio, the number of operating beds need to be decreased. Second, the performance data represented by the indicators of efficiency, profitability and publicness were complementary and showed a tendency of being increased or decreased in same direction. Third, from the result of panel analysis, the efficiency was mainly influenced by the structural factors, while the profitability was influenced by managerial factors, and the publicness by medical environment. In conclusion, in order to enhance the performance of public municipal hospitals in Korea, it is important to harmonize the effort for efficiency, financial and policy support by central and local government, and the continuous participation of community residents.

• 산업과 과학
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• 1권1호
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• pp.1-6
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• 2022

일상 생활에서 매일 다른 뉴스가 보도되듯이 우리 주변에서 발생되는 데이터의 양은 엄청나다고 할 수 있다. 이런 데이터에는 개인적인 것도 있지만, 날씨나 교통 정보와 같이 모든 사람들에게 공통적인 것도 존재한다. 본 논문은 이런 정보를 효과적이며, 신속하게 사용하기 위해 공공데이터를 활용한 정보전달에 관해 연구로서, 공공데이터와 API기술을 바탕으로 한 오픈API에 대해 조사하였다. 이를 바탕으로 일상생활에서 쉽게 활용 가능한 오픈API를 사용하여 정보를 전달하는 방법을 설명하고, 이를 응용하여 다양한 오픈API를 활용하여 정보를 전달하는 방안을 제시한다. 제시된 방법을 사용하여 공공데이터를 활용한다면 보다 쉽고 정확한 정보를 전달할 수 있으므로 다양한 분야에 응용이 가능할 것으로 생각한다.

• The Journal of Asian Finance, Economics and Business
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• 제7권1호
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• pp.301-311
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• 2020

With the recent global urban issues such as climate change, urbanization, and energy problems, the smart city was proposed as one of the solutions in urban planning. This study introduces the smart city initiatives of South Korea by examining the recent history of smart city policies and their limitations. This case study reflects the experience of one of the countries which thrived to building smart cities as their national key industries to drive economic growth. It also analyzes the trends of the smart city using big data analysis techniques. Although there are obstacles such as economic recession, failing to differentiate from the U-city, low service level than expected smart functionality, We could recognize the current status of the smart city policies in South Korea such as 1) Korean smart city development projects are actively implemented, 2) public consensus suggests that applying advanced technology and the active role of government need, 3) a comprehensive and strategic approach with the integration and application of advanced technologies is required as well, 4) investment by both private and public sectors need to deliver social improvements. This study suggests future direction of smart city polity in South Korea in the conclusion.

• 한국실내디자인학회논문집
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• 제21권5호
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• pp.390-398
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• 2012

The purpose of this study was to analyze the planning guideline of individual space size for public library. The 26 cases were selected from the data of outstanding libraries built after the year 2000. The paper focused on the comparison between the data from analysis and the guideline from manual book of public library. The result of this study was as followed ; The first, reference reading rooms were open-plan rather than segmented. The second, the percentages of reference reading spaces from the data were lower than the guidelines. It proved the fact that the role of public library expanded to cultural community space. The third, children's space retained sufficient numbers of book collections. It represented that people realized the importance of children's library in terms of cultural education. The fourth, the percentage of space size of cultural area showed high amount of numbers. It proved the fact that the public library as community center was required various cultural programs. The fifth, the percentages of preservation library were lower than the guideline in case of the big libraries, while the small libraries were higher. The book collections of detached annex libraries should be linked with the central libraries.

• Journal of Preventive Medicine and Public Health
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• 제31권4호
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• pp.875-884
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• 1998

Missing observations are common in medical research and health survey research. Several statistical methods to handle the missing data problem have been proposed. The EM algorithm (Expectation-Maximization algorithm) is one of the ways of efficiently handling the missing data problem based on sufficient statistics. In this paper, we developed statistical models and methods for survey data with multivariate missing observations. Especially, we adopted the EM algorithm to handle the multivariate missing observations. We assume that the multivariate observations follow a multivariate normal distribution, where the mean vector and the covariance matrix are primarily of interest. We applied the proposed statistical method to analyze data from a health survey. The data set we used came from a physician survey on Resource-Based Relative Value Scale(RBRVS). In addition to the EM algorithm, we applied the complete case analysis, which uses only completely observed cases, and the available case analysis, which utilizes all available information. The residual and normal probability plots were evaluated to access the assumption of normality. We found that the residual sum of squares from the EM algorithm was smaller than those of the complete-case and the available-case analyses.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제11권4호
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• pp.2219-2236
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• 2017

With cloud storage services, users can handle an enormous amount of data in an efficient manner. However, due to the widespread popularization of cloud storage, users have raised concerns about the integrity of outsourced data, since they no longer possess the data locally. To address these concerns, many auditing schemes have been proposed that allow users to check the integrity of their outsourced data without retrieving it in full. Yuan and Yu proposed a public auditing scheme with a deduplication property where the cloud server does not store the duplicated data between users. In this paper, we analyze the weakness of the Yuan and Yu's scheme as well as present modifications which could improve the security of the scheme. We also define two types of adversaries and prove that our proposed scheme is secure against these adversaries under formal security models.

• 벤처창업연구
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• 제17권3호
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• pp.19-31
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• 2022

현재 국내 액셀러레이터 시장에서 공공 액셀러레이터의 역할이 점차 확대되고 있다. 이에 따라 향후 정책의 수립을 위해 공공 액셀러레이터의 투자효과를 점검하고 그 타당성을 검증할 필요가 있다. 그러나 국내 액셀러레이터는 그 역사가 짧고 정량적인 자료가 공개되지 않고 있어 액셀러레이터에 관한 재무데이터를 활용한 정량적 연구가 부재한 것이 현실이다. 이에 본 연구는 공공 액셀러레이터의 투자가 스타트업에 미치는 효과를 확인하기 위해 실제 공공 액셀러레이터의 지분투자를 받은 스타트업의 재무데이터를 가지고 실증분석을 진행하였다. 2016년부터 2020년까지 5년간 공공 액셀러레이터가 투자한 112개 스타트업의 재무데이터를 사용하여 회귀분석을 진행하였다. 실증분석 결과 첫째, 공공 액셀러레이터의 초기투자가 스타트업에 대한 성장성과 수익성에 영향을 미치는 것으로 나타났다. 세부적으로 살펴보면 공공 액셀러레이터의 초기투자가 성장성 지표인 매출액 증가율과 총자산증가율에 정(+)의 영향을 미치는 것을 확인하였다. 둘째, 공공 액셀러레이터의 공동투자가 성장성보다는 수익성 지표인 매출액이익률에 유의한 정(+)의 영향을 미치는 것으로 나타났다. 본 연구를 통해 유의미한 결과를 보인 초기 스타트업에 대한 투자를 지속적으로 확대하고 공공 액셀러레이터의 강점인 지원 사업을 결합한다면 스타트업의 성장에 더욱 큰 힘이 될 것으로 생각한다. 본 연구를 통하여 공공 액셀러레이터의 투자 성과를 확인하였으므로 향후 공공 액셀러레이터 사업은 민간 액셀러레이터들의 미흡한 부분을 보완함과 동시에 민간과의 공동투자를 통해 스타트업의 성과를 제고하는 방향의 정책 추진이 필요한 것으로 판단된다.