• Convergence Security Journal
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• v.18 no.1
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• pp.19-31
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• 2018

As the ICT technologies advance, the unprecedently large amount of digital data is created, transferred, stored, and utilized in every industry. With the data scale extension and the applying technologies advancement, the new services emerging from the use of large scale data make our living more convenient and useful. But the cybercrimes such as data forgery and/or change of data generation time are also increasing. For the data security against the cybercrimes, the technology for data integrity and the time verification are necessary. Today, public key based signature technology is the most commonly used. But a lot of costly system resources and the additional infra to manage the certificates and keys for using it make it impractical to use in the large-scale data environment. In this research, a new and far less system resources consuming signature technology for large scale data, based on the Hash Function and Merkle tree, is introduced. An improved method for processing the distributed hash trees is also suggested to mitigate the disruptions by server failures. The prototype system was implemented, and its performance was evaluated. The results show that the technology can be effectively used in a variety of areas like cloud computing, IoT, big data, fin-tech, etc., which produce a large-scale data.

• Journal of the Korea Convergence Society
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• v.12 no.4
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• pp.61-68
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• 2021

The purpose of this study was to derive their cognitive, psychological, and behavioral characteristics through a fusion study that analyzed the quantified results of post-homeless people participating in the housing support project after the electroencephalogram test. Participants in this study are 6 people who have lived in temporary homeless facilities or homeless living facilities and have expressed their intention to participate in the housing support project. Electroencephalogram measurements were performed using Brainmaster equipment according to the International 10-20 Law. As a result of the analysis, the study participants showed high levels of Theta wave, Beta wave, and High Beta wave, which show the peculiarity of the emotional aspect, which is a result of showing emotional characteristics such as anger, anxiety, and insomnia in the emotional aspect. Therefore, it is suggested that they provide stress management, counseling, and physical health management services in order to maintain a stable residential life in the community in the future. The results of this study presented a quantitative basis for the cognitive, psychological, and behavioral characteristics of homeless people, and suggests a support system necessary for them to maintain self-reliance in communities in the future.

• 한국사회정책
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• v.20 no.2
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• pp.195-232
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• 2013

Child care cash benefit policy in Korea started in 2009 limited to the those under 2 years old in the poverty group entitled to National Basic Living Security Act and the near poor group (100,000 won a month). However, in 2013 the coverage has been expanded to everyone under 5 (200,000 won for those between babies in their first year, 150,000 won for the second year and 100,000 won for those between 2 to 5 years old) regardless of the household income level. The policy change between year 2012 and year 2013 requires a rapid increase in child care budget - 760% increase. This paper examines this exceptional expansion in child care cash benefit using policy network analysis. We found that local election as well as general election immediately effect the interaction between policy actors and the types of networks. This suggest that policy actors recognize child care cash benefit to be more directly related to the election result compared with child care services. Also conflictive interaction between the parties and government bodies with budget restraint also facilitated the diversification on the child care cash benefit discussion. The policy making process of child care cash benefit was led to policy adoption immediately after the presidential election suggesting that policy formation process and the policy adoption had an close relationship in the Korean child care cash benefit policy process.

• Journal of Music and Human Behavior
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• v.18 no.1
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• pp.63-77
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• 2021

Given that music is not part of the national/regular curriculum and how music therapy is a new endeavor in the United Arab Emirates (UAE), this study aimed to investigate parents' perceptions of the music therapy given to their children with disabilities in the UAE. A survey was administered to 33 parents of children with disabilities living in Sharjah, UAE. The survey consisted of 43 questions related to characteristics of the music therapy sessions that the participants' children received and the parents' satisfaction with their children's music therapy. The results showed that participants reported a high level of satisfaction with the music therapy provided to their children. In terms of their participation in music therapy sessions, 33.3% of parents co-participated in music therapy sessions with their children, and 45.5% of parents observed their children's sessions. Parents who had direct participation in music therapy sessions were significantly more satisfied with their children's music therapy (p < .05) and perceived greater positive changes in their children as a result of the therapy (p < .05). Parents perceived their children as being able to positively respond to music, leading to positive changes in behavior. Despite these benefits, participants also reported the need for formal opportunities for family members to learn about the applications and outcomes of music therapy. The findings of this study supports the implementation of music therapy throughout the UAE and point to the need for future studies as music therapy expands across the country.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.14 no.4
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• pp.257-268
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• 2021

As the variety and scale of facilities increase due to industrialization and urbanization, blind spots for facility safety management have occurred, resulting in numerous casualties.To meet safety and security needs of citizens living in smart cities, we present a procedure for establishing an integrated platform for facility safety management by combining 5G and digital twin technologies. It can be used to perform inspection according to risk factors and aging of facilities. In this paper, the current status of facility management and application directions of new 5G digital twin-based smart city technologies are reviewed and digital twin implementation procedures are presented. Five cities were selected as target areas: Osan, Gwangmyeong, Guri, Uijeongbu, and Anyang. Old and emergency facilities of each local government were selected. A total of 33 digital twin facilities reflecting policy directions of each city were selected. Focusing on facilities determined by each city, the purpose of this study was to define information technology infrastructure elements for the application of the 5G digital twin facility safety management integrated platform, define categories of implementation services, and suggest a concrete integrated platform configuration plan.

• Therapeutic Science for Rehabilitation
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• v.10 no.2
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• pp.23-36
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• 2021

Objective : The purpose of this study was to analyze group programs for the elderly living in communities and to provide basic data for applying effective occupational therapy programs for the elderly in the community. Methods : From January 2009 to December 2019, articles on group programs for the elderly in the community were searched for in the NDSL, DBPia, Riss, and PubMed databases. Based on the inclusion and exclusion criteria, a total 16 out of the 147 identified studies were selected and analyzed. This review analyzed the characteristics of the participants, contents of the group program, session and duration of the intervention, outcome measures, and effect of the group program. Results : Single group pre-post test studies with evidence level III were most common (8, 50.0%), and five (31.3%) of the studies were conducted on the community-dwelling elderly. Across all the 16 studies, there were 10 types of group programs, and the most frequently used was an exercise group program (25.0%). According to the analysis of the group program period, sessions and time, the intervention period was most commonly 12 weeks (37.5%), with 8 sessions or 12 sessions (25.0%). The intervention time in the group program was most commonly 60 minutes (43.8%). Conclusion : This study can be used as a basis for the development of effective group programs for the elderly and patients with dementia in community-based long-term care services.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.22 no.5
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• pp.354-360
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• 2021

People hope to live a healthy and happy life achieving satisfaction by striking a good work-life balance. Therefore, there is a growing interest in well-aging which means living happily to a healthy old age without worry. This study identified important factors related to well-aging by analyzing news articles published in Korea. Using Python-based web crawling, 1,199 articles were collected on the news service of portal site Daum till November 2020, and 374 articles were selected which matched the subject of the study. The frequency analysis results of text mining showed keywords such as 'elderly', 'health', 'skin', 'well-aging', 'product', 'person', 'aging', 'female', 'domestic' and 'retirement' as important keywords. Besides, a social network analysis with 45 important keywords revealed strong connections in the order of 'skin-wrinkle', 'skin-aging' and 'old-health'. The result of the CONCOR analysis showed that 45 main keywords were composed of eight clusters of 'life and happiness', 'disease and death', 'nutrition and exercise', 'healing', 'health', and 'elderly services'.

• Journal of Internet of Things and Convergence
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• v.8 no.3
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• pp.29-40
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• 2022

The aim of this study was to analyze research trends of social service quality from 2007 to 2020 based on text mining and topic modeling. Our focus was to provide foundational materials for social service improvement by discovering the latent meaning of relevant research papers. We collected 97 scholarly articles on social service, social welfare service, and quality from RISS, and implemented two segments of text mining analysis. Our results showed that the first section included 38 papers and the second 59, indicating 6.9 articles annually. Word frequency results demonstrated that the common keywords of both sections were 'service', 'quality', 'social service', 'satisfaction', 'users', 'quality control', 'reuse', 'policy', 'voucher', etc. TF-IDF suggested that 'social service', 'satisfaction', 'users', 'customer satisfaction', 'revisiting', 'voucher', 'quality', 'assisted living facility', 'quality control', 'community service investment business', etc., were represented in both categories. Lastly, topic modeling analysis revealed that the first segment displayed 'types of care services', 'service costs', 'reuse', 'users based', and 'job creation', whereas the second presented 'service quality', 'public value', 'management system of human resources', 'service provision system', and 'service satisfaction'. Future directions of social service quality were discussed based on the results.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.43 no.5
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• pp.639-650
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• 2023

Economic development has resulted in the concentration of population and industry in the metropolitan area. Additionally, the Republic of Korea is experiencing this phenomenon, with more than half of the population living in the Seoul capital area. To alleviate this concentration of population, the Korean government implemented the new town development policy. Unfortunately, this has led to an increase in the commuting population, causing an imbalance in transportation services due to financial and policy differences in each region. This paper analyzes the level of user satisfaction with mega commuting in three aspects: mobility, accessibility, and connectivity. To objectively assess the level of user satisfaction, which is qualitative data, the Rasch Model is used to analyze the collinearity of user data. The results indicate that the level of user satisfaction differs by region, and service satisfaction with mobility is lower than that with accessibility and connectivity. Therefore, prior to the introduction of new town policies, it is necessary to develop metropolitan transportation infrastructure.

• Journal of Korea Entertainment Industry Association
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• v.13 no.7
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• pp.549-556
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• 2019

The purpose of this study is to explore the factors affecting the satisfaction level of the disabled and their families. As a major variable, the mediating effect of the change of the disabled was examined in the relationship between residential facilities satisfaction and family life satisfaction. A total of 810 responses were collected by conducting a questionnaire survey on 856 persons with disabilities and their parents. As a result, the facilities satisfaction for the disabled has a significant influence on the family life satisfaction and the change of the handicapped. In the relationship between facility satisfaction and family life satisfaction, the change of disabled showed partial mediating effect, and it was confirmed that the effect of facility satisfaction on family life satisfaction increased when there was a change in the disabled. The results of this study can be used as the basic data to structure the discussion of living facilities for people with disabilities and their families, as well as can be used to restructure policies and practices for residential support services for the disabled. In particular, it is meaningful as a basic data for proposing various future types of residential facilities required by parents of adults with disabilities.