• Proceedings of the Korea Information Processing Society Conference
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• 2023.05a
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• pp.230-232
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• 2023

Federated Learning (FL) is a technique that excels in training a global model using numerous clients while only sharing the parameters of their local models, which were trained on their private training datasets. As a result, clients can obtain a high-performing deep learning (DL) model without having to disclose their private data. This setup is based on the understanding that all clients share the common goal of developing a global model with high accuracy. However, recent studies indicate that the security of gradient sharing may not be as reliable as previously thought. This paper introduces the latest research on various attacks that threaten the privacy of federated learning.

• Journal of Environmental Science International
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• v.7 no.6
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• pp.883-888
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• 1998

The aim of this paper is to suggest basic guidelines for the urban park development policy in Taegu. This research is mainly based on university students' essay on ＜private inquiry of urban park in Taegu＞. Talsong Park, the most popular site for the students' essay, was selected for the purpose of the study. The research focused on the general images of the park, negative images of the park and aspirations and demands for the park in relation with Talsong Park redevelopment policy. The research of this result suggested that the renovation of Talsong Park from zoo-oriented park to the historic ＆ cultural park status. The other main suggestion was consideration of public participation from the planning stage for the betterment of park management. In addition, the importance of environmental education for the local people was stressed in order to enhance public awareness of environment for the solution of our common environmental problems in relation with Local Agenda 21.

• Korean Journal of Agricultural Science
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• v.43 no.2
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• pp.288-297
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• 2016

This study is to evaluate the 'Private antidesertification afforestation support project' in the Kubuqi Desert through a survey of local residents and interviews with relevant personnel. Based on this survey, gender, age, and occupational differences in perception of the project were analyzed. In addition, the project was evaluated based on the OECD/DAC criteria using survey results and in-depth interviews with the relevant personnel. The survey analysis results show that the participants answered most of the questions positively, claiming that they were receiving social, economic, and environmental benefits through the project. However, most of the participants answered negatively to questions regarding the understanding of the project and relevant information. Gender differences in perception of the project were not found, whereas, age and occupational differences in perception were found. Older age groups showed higher levels of perception. Participants in the agro-livestock industry and office workers showed higher levels of perception compared to middle/high school students, the unemployed and college students. Teenagers, in particular, showed the lowest level of perception of the project, and thus, promotional activities targeting teenagers should be conducted in the future. Results of this evaluation of the project based on the OECD/DAC's five criteria (relevance, effectiveness, efficiency, impact, and sustainability) showed that the project operated effectively for the most part.

• Journal of Preventive Medicine and Public Health
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• v.11 no.1
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• pp.49-58
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• 1978

To try to determine the type of medical service wanted by the rural population, in Chungnam Province, a survey amongst the populations of 6 counties was conducted; Within the 6 counties, 2 local communities, which had no access to local medical services, were surveyed. The 12 communities were actively involved in Sae-maul activities, and total number of households surveyed, was 822. The survey was conducted over a 1 month period, from July 16th, 1976, thru August 20th, and the followings are the results, summarised. 1. The largest number of respondents desired a combination of Public Health Center and Country Hospital, followed in order by Private Clinic and Modern Medical Facility. 2. The respondents, aged under 40 years, desired the Private Clinic type medical service, whilst those over 40 years of age, wanted the County Hospital, and as the numbers in this age bracket, were larger, so the ratio was much higher. 3. Sex, educational background, and occupation did not play any particular emphasis in the decisions. 4. Monthly income affected the responses to the survey. These in the lower-income bracket, wanted the County Hospital, and the ratio was high. These in the high income bracket desired the Modern Medical Service, accordingly. Those with an income of 50,000 won or less, amongst the low-income bracket, favored the Public Health Sub-center type of service. The ratio for this service was very high.

• Journal of Korea Game Society
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• v.19 no.6
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• pp.25-36
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• 2019

The Indie Game market is emerging as a niche for game startups. We analyzed policy cases related to indie games in local governments, and the private sector to suggest ways to improve the Indie Game market. As a result, the problems of Indie Game-related policies resulted in lack of market research and success case analysis, lack of manpower training program, accelerator program, and public-private cooperation project. To build an Indie Game ecosystem, we proposed the necessity of establishing an effective promotion system through cooperation between the local government and the state.

• Journal of the Korean Institute of Rural Architecture
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• v.25 no.1
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• pp.1-8
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• 2023

This is a case study of private sector's development of long-term unexecuted urban parks in Pohang through a special act, which provides a guideline of 30% of land for non-park while 70% of land for park. The strategy has a lot of validity in many respects along with the urban planning sunset system, but even with the special act it would not easy to be implemented in Pohang, where the guideline has been modified to 20% for non-park, mostly multi-family housing projects while 80% for park. Thus, participation of private companies would be discouraged due to low commercial validity. Also, there would exist various risks because the project would be completed through a long-term decision-making and execution process. Thus, this study argues that it would be better for Pohang to follow the original guideline of the government for better implementation of the projects, along with preparation of a law with which the government be able to recoup excess profits when too much profits would be given to private developers. For the project implemented smoothly, it is also important to understand local housing market and fluctuating economic conditions, and to prepare various incentives for private companies. In addition, to secure publicity, guidelines on the level of publicity of the project should be prepared through negotiation by parties to prevent the project being discouraged too much.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.16 no.2
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• pp.171-180
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• 2016

The purpose of this research is to study how efficiently corporate public-private partnerships in disaster management is. The research method involved interviewing fifteen experts in disaster management, who were questioned about assisting disaster-stricken areas in accordance with public-private partnerships. These experts offered the following suggestions for improving disaster management methodology. First, to overcome the lack systematic management in the public-private partnerships for disaster relief to expand and strengthen the role of civil organizations. Second, disaster managers and private organizations should have active communication along secure channels so that private organizations can take advantage of the talents that public and private entities own. Third, for civilian experts to share their information, which should be actively utilized to support disaster management in local government. Fourth, education and training for public-private partnerships should be made on an ongoing basis. Fifth, effective disaster management and recognition of public-private cooperation should be strengthened. Finally, private sector support should be made. This study was applied to the Delphi method and that improvements can be made to a variety of populations, such as questionnaires. The results of this study will contribute to the policy options for establishing public-private partnerships in disaster management.

• Korean Security Journal
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• no.28
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• pp.207-228
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• 2011

In the situation that crime is diversified qualitatively and quantitatively, the mutual cooperation system between police and private security is very important to cope with the change of policing environment properly. The primary purpose of this study is to suggest the method to improve the policing service quality of police and advance sound security industry by analyzing the case of close mutual cooperation system between police and private security of USA, which can be called the best country in the field of private security. When considering the cases of USA synthetically, we can know that as the most basic characteristic, the discussion over actual cooperation method is performed on the basis of positive recognition over mutual existence of police or private security. It means that the mutual relationship is based on the basic recognition over partner relationship to meet citizen's desire for safety. While reviewing the cases of USA, Korea shall refer to the fact that social safety activities of advanced countries display effects because of many factors such as various mutual cooperation programs between police and private security, efforts of local government, high quality of private security, reliance of citizen and general understanding of police, private security and citizen to solve crime problem. As shown in the review of USA cases, when considering the fact that the mutual cooperation between police and private security is performed in the level of autonomous police, Korea shall perform autonomous police system to provide better policing service, which is close to citizen.

• The Journal of Asian Finance, Economics and Business
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• v.7 no.9
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• pp.263-269
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• 2020

The purpose of this paper is to examine the impact of consumer price index, infrastructure, human resources, trade openness, and private credit on the attraction of foreign direct investment (FDI) in Tay Ninh province as well as to emphasize the important role of FDI in economic growth of developing areas. The research data was collected from Tay Ninh Statistical Office with 80 samples of a 20-year period from 2000 to 2019. Also, OLS regression method using Eviews software was employed to analyze the data obtained. The findings revealed that human resources, infrastructure and private credit have a positive and significant impact on FDI attraction in Tay Ninh province, while consumer price index was proven to affect FDI attraction negatively. Accordingly, competent authorities of Tay Ninh province should focus on stabilizing prices as well as implementing policies for developing local human resources and attracting high-quality personnel from foreign countries. Tay Ninh province also needs to pay more attention to information technology investment for synchronous development of infrastructure. Moreover, the State Bank of Tay Ninh branch needs to consider more credit sources to provide support packages for businesses, creating a strong basis for establishments to attract FDI for the province's economic development.

• Proceedings of the Korea Water Resources Association Conference
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• 2022.05a
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• pp.211-211
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• 2022

The marketization reform from the open-door policy in 1978 was not only booming export-oriented industries with foreign investment but also expanding the role of private actors in the Chinese water sector. Private Sector Participation (PSP) has become an important element in developing urban infrastructure by providing better services with advanced facilities. The rapid development of PSP-driven urban water infrastructure in China has a positive impacted on Chinese economic development, particularly in coastal areas. PPPs in some coastal areas have successfully spread out over China since China applied the first Build-Operate-Transfer (BOT) mode in the water sector in the early 1990s. The market-oriented water and wastewater, Public-Private Partnership (PPP) mechanism in the initial period of China has been transformed into a state-dominated PPP mechanism. The development pattern of the water and wastewater PPPs in China has been divided in four stages: the first period from 1984 to 2002, the second period from 2003 to 2008, the third period from 2009 to 2014, and the last period after 2015. The study aims to investigate the successful process of water and wastewater PPPs in local areas through five socioeconomic elements: export-oriented economic strategy, urbanization, cheap land policy, infrastructure investment, and water issues and climate change. In addition, the study focuses on analyzing the extent to which the Chinese government re-asserted its control over the PPP mechanism by classifying five elements in three different development Phases from early 2000 to 2020. The Jiangsu Province in the estern coastal area has actively invited PPP projects in the water and wastewater sectors. The successful introduction and rapid growth of PPPs in the urban water infrastructure has made the province an attractive area for a foreign investor.