• Title/Summary/Keyword: Reward Methods

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Hybrid phishing site detection system with GRU-based shortened URL determination technique (GRU 기반 단축 URL 판별 기법을 적용한 하이브리드 피싱 사이트 탐지 시스템)

  • Hae-Soo Kim;Mi-Hui Kim
    • Journal of IKEEE
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    • v.27 no.3
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    • pp.213-219
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    • 2023
  • According to statistics from the National Police Agency, smishing crimes using texts or messengers have increased dramatically since COVID-19. In addition, most of the cases of impersonation of public institutions reported to agency were related to vaccination and reward, and many methods were used to trick people into clicking on fake URLs (Uniform Resource Locators). When detecting them, URL-based detection methods cannot detect them properly if the information of the URL is hidden, and content-based detection methods are slow and use a lot of resources. In this paper, we propose a system for URL-based detection using transformer for regular URLs and content-based detection using XGBoost for shortened URLs through the process of determining shortened URLs using GRU(Gated Recurrent Units). The F1-Score of the proposed detection system was 94.86, and its average processing time was 5.4 seconds.

Exploring the Effectiveness of GAN-based Approach and Reinforcement Learning in Character Boxing Task (캐릭터 복싱 과제에서 GAN 기반 접근법과 강화학습의 효과성 탐구)

  • Seoyoung Son;Taesoo Kwon
    • Journal of the Korea Computer Graphics Society
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    • v.29 no.4
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    • pp.7-16
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    • 2023
  • For decades, creating a desired locomotive motion in a goal-oriented manner has been a challenge in character animation. Data-driven methods using generative models have demonstrated efficient ways of predicting long sequences of motions without the need for explicit conditioning. While these methods produce high-quality long-term motions, they can be limited when it comes to synthesizing motion for challenging novel scenarios, such as punching a random target. A state-of-the-art solution to overcome this limitation is by using a GAN Discriminator to imitate motion data clips and incorporating reinforcement learning to compose goal-oriented motions. In this paper, our research aims to create characters performing combat sports such as boxing, using a novel reward design in conjunction with existing GAN-based approaches. We experimentally demonstrate that both the Adversarial Motion Prior [3] and Adversarial Skill Embeddings [4] methods are capable of generating viable motions for a character punching a random target, even in the absence of mocap data that specifically captures the transition between punching and locomotion. Also, with a single learned policy, multiple task controllers can be constructed through the TimeChamber framework.

The Effect of Job Embeddedness Constructs on Innovation-related Behaviors and Turnover Intention (직무배태성의 구성요인이 혁신관련행동과 이직의도에 미치는 연구)

  • Yoo, Young-Jin
    • Journal of the Korean Society of Food Culture
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    • v.26 no.6
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    • pp.649-656
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    • 2011
  • The purpose of this study was to investigate how constructs of job embeddedness (fit, links and sacrifice) affected innovation-related behaviors. This study also investigated the relationship between innovation-related behaviors and turnover intention. The samples of this study were employees of Daegu City restaurants who visited the 2010 Daegu Food Tour Expo on October 7-10. A total of 302 questionnaires were analyzed with the statistical methods of factor analysis, reliability test, and covariance structural analysis. There were two findings of the research. First, we found that fits, links, and sacrifice were positively related to innovation-related behaviors. Second, we found that innovation-related behaviors were negatively related to turnover intention. Therefore, restaurant managers in Daegu City should pay attention to providing employee organization that helps them to first in, makes sure that they have lots of links with other employees, and bestows as many wage and fringe benefits as possible. Also, restaurant managers should reward the innovation-related behaviors of employees.

Job Satisfaction of Psychiatric and Community Mental Health Nurses in Community Mental Health Centers (정신보건센터에 근무하는 정신보건간호사의 직무만족도)

  • You, Kwangza;Lee, Kyunghee
    • Korean Journal of Occupational Health Nursing
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    • v.21 no.2
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    • pp.108-115
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    • 2012
  • Purpose: The purpose of this study was to investigate the relationship of psychiatric and community mental health nurses' job satisfaction. Methods: This was a descriptive and correlational study in which 151 psychiatric and community mental health nurses (PCMHNs) took part between September and October 2009. Results: The mean score for job satisfaction of the participants was 3.25. In job satisfaction, there were significant differences between psychiatric and community mental health nurse practitioner (PCMHNP) and nurse in community mental health center. All variables except role conflict were positively correlated with job satisfaction. As a result, factors influencing job satisfaction were reward system (${\beta}$=.46, p<.001), self-esteem (${\beta}$=.35, p<.001), leadership (${\beta}$= .27, p<.001), career as a PCMHNP (${\beta}$=-.12, p<.007), job-related characteristics (${\beta}$=.11, p<.24), and career as a nurse in community mental health center (${\beta}$=.09. p<.045). These factors explained 70.3% of the total variance. Conclusion: The results indicated that the comprehensive understanding of job satisfaction to the independent variables could suggest the way how to increase the job satisfaction for psychiatric and community mental health nurse who are a catalysts promoting mental health in community mental health center.

An Exploration of the Experiences in Childcare Experts, Parents, and Directors with Participation in 'Daycare Centers Monitoring Program' ('어린이집 부모모니터링 사업'에 참여한 보육전문가, 부모 및 원장의 경험 탐색)

  • Kyun, Ju Youn
    • Korean Journal of Childcare and Education
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    • v.13 no.3
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    • pp.19-38
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    • 2017
  • Objective: The purpose of this study is to examine the practical experiences of childcare experts, parents, and daycare center directors who participated in the 'Daycare Centers Monitoring Program' carried out in K city. Methods: Participants were three childcare experts who belong to the monitoring group in K city, three mothers with infants and children, and three daycare center directors who were selected for the 'Daycare Centers Monitoring Program'. Results: As a result of the research, the childcare experts experienced the following; 1) sharing interesting experiences with parents, 2) a perception of the monitoring program for taking advantage of mutual strengths, 3) the opportunity of maintaining a sense of presence in early childhood education institutions, et al. The mothers' experiences were shown to include, 1) resolving small questions about the operation and management of a daycare center, 2) feelings of relief through observing the life style of infants and children, 3) the joy and reward of being a member of the monitoring group, et al. The directors' experiences were indicated to include 1) a psychological discomfort recognized as a target of the daycare monitoring and as 'another evaluation', 2) the confusion caused by different reviews, 3) an ambiguity on the unfamiliar indexes and contents electronically documented, et al. Conclusion/Implications: Based on these results, there was a discussion about actual suggestions and educational implications on the daycare monitoring program in order to improve the quality of daycare services in childcare centers.

The Influence of Job Stress and Calling on the Organizational Commitment of Nurses: Focused on Clinical Nurses at University Hospitals in Busan (간호사의 직무스트레스와 소명의식이 조직몰입에 미치는 영향: 부산시 소재 대학병원의 일반간호사를 중심으로)

  • Kim, Moon-Jeong;Lee, Yu-Mi
    • The Korean Journal of Health Service Management
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    • v.10 no.3
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    • pp.27-37
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    • 2016
  • Objectives : This study was conducted to test the influence of job stress and calling on the organizational commitment of clinical nurses. Methods : 220 clinical nurses at two university hospitals in Busan were recruited. They were asked to complete a questionnaire, and 192 data sets were included in the statistical analysis. Results : The mean score of the clinical nurses' organizational commitment was 4.0. All subdomains of job stress and calling were found to have correlations with organizational commitment. The organizational system (t=-6.099, p<.001), lack of reward (t=-3.990, p<.001), purpose/meaningfulness (t=3.624, p<.001), and occupational climate (t=-3.581, p<.001) were revealed to have influences on the organizational commitment. The model was statistically significant, explaining 52.2% of the variance (F=47.808, p<.001). Conclusions : To help clinical nurses become committed to their organizations, administrators need to build fair and rational organizational systems, strengthen various types of rewards, and help nurses reconcile nursing and the meaning of their lives. In addition, every nurse should endeavor to change the nursing organizational climate which is based on vertical collectivism, to a rational climate.

An Analysis of Internal Marketing Activities affecting on Nurse's Motivation;Based on Herzberg's Motivation-Hygiene Factor Theory (병원의 내부마케팅 활동이 간호사의 동기부여에 미치는 영향;Herzberg의 동기-위생요인이론을 기반으로)

  • Lim, Ji-Young
    • Journal of Korean Academy of Nursing Administration
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    • v.12 no.1
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    • pp.5-13
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    • 2006
  • Purpose: The aim of this study was to analyze effects of internal marketing activities on nurse's motivation based on the Herzberg's two factor theory. Methods: The subjects of this study were 521 nurses who were working in the 4 general hospitals located in Seoul and Incheon area. The data were collected by self-reporting questionnaires. The data were analyzed using descriptive statistics and path analysis. Results: The mean score of nurse's perception of internal marketing was 3 point, and it was similar to previous studies results. In the motivation factors, the most satisfied factor was a responsibility. Advancement was the most unsatisfied factor. In the hygiene factors, the most satisfied factor was a technical supervision. Policy and administration were the most unsatisfied factors. Internal marketing activities affecting on nurse's motivation were different by each motivation-hygiene factors. In an aspect of motivation factors, the statistically significant internal marketing factors were paid-leave, employee welfare and communication, however, in hygiene factors, education, employee welfare and reward. Conclusion: These results will be used to develop a macro or micro internal marketing strategies to enhance nurse's motivation based on motivation factors and hygiene factors.

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A Study on the Effects of Authentic Leadership on Job Satisfaction and Organizational Citizenship Behavior: Focus on Military Organization Behavior (군대 조직에서 진성리더십이 직무만족과 조직시민행동에 미치는 영향에 관한 연구)

  • Son, Jeonggi;Song, Taek Geun;Lee, Keun Jung
    • Journal of Korean Society for Quality Management
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    • v.46 no.3
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    • pp.569-592
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    • 2018
  • Purpose: The study is aimed to understand the influence of the authentic leadership in the military organization on the collective and personal level of effectiveness and to examine the impact of authentic leadership on job satisfaction and the organizational citizenship behavior in the military. Methods: The empirical test are based on an effective survey with 337 respondents who are military officers in order to verify the hypothesis of the research. Results: The results of this study found that the authentic leadership has partial positive impact on the job satisfaction. The job satisfaction has positive impact on organizational citizenship behavior. Conclusion: According to the results of this study, leaders must be educated through personal education in order to express themselves honestly. Education should be carried out so that they ca develop qualities that can truly reward mental rewards for good work and praise. The self-examination should be done with the self-examination.

The Effect of Leadership by Team Leaders on Team Empowerment and the Performance of Team Members in Fashion Companies (패션기업 팀장의 리더십이 팀 임파워먼트 및 팀원의 성과에 미치는 영향)

  • Hang, Byung-Sook;Lee, Eun-Jin
    • Journal of the Korean Society of Clothing and Textiles
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    • v.34 no.10
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    • pp.1687-1700
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    • 2010
  • This study analyzes the effects of leadership by team leaders on team empowerment and the effects of team empowerment on the performance of team members in fashion companies. A survey was conducted from May 1 to June 30 in 2010. The data were collected from team members in fashion companies in the Seoul metropolitan area and 670 respondents were used in the data analysis. The statistical analysis methods were frequency analysis, factor analysis, reliability analysis, and multiple regression analysis. As a result, the leadership of the team leaders was classified by the contingent reward, individualized consideration, intellectual stimulation, charisma, and exceptional management. Team empowerment was classified by the team potency, team autonomy, team impact, and team meaning. The performance of team members were classified by the job accomplishment, job satisfaction, and job commitment. The intellectual stimulation and charisma leadership influenced team empowerment in fashion companies; in addition, the team potency, team impact, and team meaning influenced the performance of team members in fashion companies.

Impact of Working environment on Psychological Well-being in Male Baby boomers (베이비붐세대 남성의 근무환경이 심리적 안녕감에 미치는 영향)

  • Park, Min-Jeong;Kim, Hyeong-seon
    • Journal of Korean Public Health Nursing
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    • v.30 no.1
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    • pp.17-29
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    • 2016
  • Purpose: The purpose of this study is to measure psychological well-being and to examine the associated factors in male baby boomers using Korean Working Conditions Survey Data 2011. Methods: This study was based on the 3rd Korean Working Conditions Survey Data 2011, which was conducted from June to November 2011 by the Occupational Safety and Health Research Institute. The total number of subjects was 3,340 male employees, who were born from 1955 to 1963 and responded to the question regarding occupational stress. Chi-square and multiple logistic regression were used for data analysis using the SAS ver 9.3 program. Results: Approximately 54.5% of the male babyboomer employees did not have psychological well-being. Factors associated with psychological well-being were weekend-shift and occupational stress including job insecurity, organizational system, and lack of reward. Night-shift and long working hours influenced psychological well-being, but the difference was not statistically significant. Conclusion: This study is a meaningful attempt to measure psychological well-being and perform an analysis of associated factors in male baby boomer employees using nationwide survey data. We suggest a complex institutional supplement in terms of national and employers to increase the psychological well-being of baby boomers.