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Shadowing property for ADMM flows
정윤모,신보미,윤상균 대한수학회 2024 대한수학회지 Vol.61 No.2
There have been numerous studies on the characteristics of the solutions of ordinary differential equations for optimization methods, including gradient descent methods and alternating direction methods of multipliers. To investigate computer simulation of ODE solutions, we need to trace pseudo-orbits by real orbits and it is called shadowing property in dynamics. In this paper, we demonstrate that the flow induced by the alternating direction methods of multipliers (ADMM) for a $C^2$ strongly convex objective function has the eventual shadowing property. For the converse, we partially answer that convexity with the eventual shadowing property guarantees a unique minimizer. In contrast, we show that the flow generated by a second-order ODE, which is related to the accelerated version of ADMM, does not have the eventual shadowing property.
민간투자형 소프트웨어 시장 활성화를 위한 민간주도 디지털 플랫폼 사례 연구
정윤모,박혜진,전규일 한국산업융합학회 2023 한국산업융합학회 논문집 Vol.26 No.4
In the case of a government's digital platform, that is exploring public software for the first time through private investment, it's important to conduct a feasibility analysis and select appropriate methods before promoting digital projects. Looking ahead, it's crucial to provide direction for the private-invested public software market to enter the global software market.
4차 산업혁명 제조업 혁신을 위한 글로벌 R&D 과제 트렌드 분석 연구
정윤모,박혜진,허요섭 한국산업융합학회 2019 한국산업융합학회 논문집 Vol.22 No.5
One of the core pillars of the Fourth Industrial Revolution is the innovation of the manufacturing industry. From the beginning, the 4th Industrial Revolution appeared in Germany under the concept of ‘Industrial 4.0’, which means a radical change in the manufacturing industry that can provide super intelligent product production and services based on artificial intelligence and big data. Since manufacturing innovation is a change in the industrial character of the entire nation, the initial role of government is important. Korea also has various policies related to the 4th Industrial Revolution, but there are still various problems to be solved. Therefore, this paper monitors and analyzes the public R&D projects of the advanced countries on manufacturing innovations in the background mentioned above, and through this, the policy implications are drawn.
정윤모 圓光大學校 大學院 1997 論文集 Vol.20 No.-
Study on Welfare System for the Old with Dementia and their families In our country, the family with a dementia patient is wholly responsible for the patlent because of insufficient welfare system. Therefore, the family experience the restriction on social activities. worries for health. financial burden, negative change of family relationship. Most families support their parents with a sense of values centering around family lating emphasis on filial devotion. but to support the old with dementia will probably come to the front as a serious social rpoblem as the old with dementia will probably come to the front as a serious social problem as the old increase and the function and sense to support weaken. Thus, in order to settle th problem of welfare for the dementia patients for the aged society. the communal efforts to explore the proper allotment of roles among government. community. to support the dementia patlent and a community should provide them with a medical and welfare service and the government should support them cultivation professional human resources for the disease and establishing the facilities for the patlent as well as financial support for the private organizations and other service organizations. In addition, in order to settle the problem of dementia thoroughly, the peoples understanding for dementia and various welfare systems should be made. fist. the government should try to enhance the peoples understanding for dementia through education for prevention. diagnosis. treatment, rehabilitation for the disease. And we all. companies, religious bodies, people as well as the government should try to provide necessary welfare systems for the disease to settle the problem of the old with dementia and to establish a welfare society for the old.
老人의 性問題 解決을 通한 老人福祉增進方案에 關한 硏究
정윤모 원광대학교 2005 論文集 Vol.35 No.-
Human life span has continuously expanded due to development of science and modern medicine, period of 'empty nest' has increased from the influence of nuclear family syndrome and individualism, and therefore, problem of loneliness and solitude of the old has become inevitable. We must respectively increase our scope of interest for the old not only to living long and healthy, but also to improvement of life quality and satisfying life. The conditions to maintain life of the old worthy are satisfaction of affection through family or a spouse, mental and physical health, economical stability, good friends, and taking a role to contribute to others, but sexual satisfaction to some level is also an important factor. The old have been recognized as subjects for filial piety, and sex has always been something secret and indecent to show interest for sex since sex through physical satisfaction has been considered bashful and immoral due to existence of Confucianism. This closeness of the old towards sex and the bias of the people that the old do not have sexual interest or the ability, causes social issues such as increase of diffusive disease through sex that develops due to inappropriate relationships and prostitution activity of the old through people so called as 'Bacchus Women's Korea, who target on the money the old have. According to the studies of old academics, the first factor of deciding sexual activity, the sexual drive is not lost even in the old days, and they propose that the reason of decrease in sexual activity is influenced by social environment and attitude of the surrounding people rather than increase in age, which suggests that there is no limit to age in sex life. Moreover, they emphasize on the fact that continuous sex life can decrease negative effect to aging to the old by letting them have higher self-respect and satisfaction for life, and the feeling that 'everything of mine is still alive' through sex. The social features that hides and prohibits sex to the old must not exist anymore. Sex does not exist only for the young, and the old should be able to enjoy sex as not only independent beings who have sacrificed and serviced for one generation, but also as those with experience to have more room and time for sex. Thus, the government, civil organizations, and social education institutions must let the people out of the ignorance and bias of the old towards sex by providing correct information and knowledge about sex of the old, and activation of consultation business and programs for re-marriage of the old is demanded to decrease the number of ole people who live alone. Furthermore, professionals should be allocated at each consultation organizations to provide education chances so the old will not consider their sexual drives sinful. Then a true meaning of welfare for the old can be materialized when sex of the old is recognized not as dark or negative, but as healthy, bright, and beautiful activity.