• 한국경영과학회:학술대회논문집
• /
• 대한산업공학회/한국경영과학회 1996년도 춘계공동학술대회논문집; 공군사관학교, 청주; 26-27 Apr. 1996
• /
• pp.131-134
• /
• 1996

Application of machine learning to scheduling problems has focused on improving system performance based on opportunistic selection among multitudes of simple rules. This study proposes a new method of learning scheduling rules, which first establishes qualitatively meaningful criteria and quantitatively optimizes the use of them, a similar way as human scheduler accumulate their expertise. The weighting of these criteria is trained in response to the system states through simulation. To mimic human quantitative feelings, distributed fuzzy sets are used for assessing the system state. The proposed method was applied to job dispatching in a simulated FMS environment. The job-dispatching criteria used were the length of the processing time of a job and the situation of the next workstation. The results show that the proposed method can develop efficient and robust scheduling strategies, which can also provide understandable and usable know-hows to the human scheduler.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• 제11권1호
• /
• pp.39-60
• /
• 2017

In the Cloud, for the scheduling of parallel jobs, there are many tasks in a job and those tasks are executed concurrently on different VMs (Visual machines), where each task of the job will be executed synchronously. The goal of scheduling is to reduce the execution time and to keep the fairness between jobs to prevent some jobs from waiting more time than others. We propose a Cloud model which has multiple Clouds, and under this model, jobs are in different lists according to the waiting time of the jobs and every job has different parallelism. At the same time, a new method-ZOMT (the scheduling parallel tasks based on ZERO-ONE scheduling with multiple targets) is proposed to solve the problem of scheduling parallel jobs in the Cloud. Simulations of ZOMT, AFCFS (Adapted First Come First Served), LJFS (Largest Job First Served) and Fair are executed to test the performance of those methods. Metrics about the waiting time, and response time are used to test the performance of ZOMT. The simulation results have shown that ZOMT not only reduces waiting time and response time, but also provides fairness to jobs.

• 한국콘텐츠학회:학술대회논문집
• /
• 한국콘텐츠학회 2007년도 추계 종합학술대회 논문집
• /
• pp.582-585
• /
• 2007

그리드란 지역적으로 분산되어 있거나 혹은 다양한 조직(organization)에 소속된 여러 자원들을 네트워크로 연동하여 사용자들에게 하나의 자원처럼 이용할 수 있는 인프라스트럭쳐이다. 전통적으로 그리드 상에서 작업관리 서비스는 작업을 제출하고 모니터링 하는 중요한 역할을 하고 있으며, 자원 정보 서비스와 데이터 전송 및 관리 서비스와 더불어 중요한 요소 중의 하나이다. 본 논문에서는 TIGRIS 상에서 작업 관리 서비스의 설계 및 구현 방법을 제시한다.

• 방송공학회논문지
• /
• 제19권6호
• /
• pp.907-915
• /
• 2014

본 연구는 정보통신분야의 국가기술자격증 소지자를 대상으로 설문 조사를 통해 이들의 근무 분야와 자격증 취득이 취업과 업무 활용에 어떠한 영향을 주는지 살펴보았다. 연구결과, 정보통신 분야에 종사하는 사람이 전체 응답자의 58.7%에 그치고 나머지는 관련없는 분야에 종사하는 것으로 나타났다. 근무 분야는 방송통신 제조업, 통신 서비스업, 과학기술 서비스업, 그리고 미디어 서비스업 순으로 많은 것으로 나타났다. 응답자가 보유한 자격증의 유형에 따라 자격증의 가치에 대한 인식의 차이는 없었다. 대신 자격증 소지자의 근무 사업체별로 자격증의 가치에 대해 다르게 인식하고 있었다. 그 가운데 미디어 관련 서비스업에 종사하는 응답자들이 국가기술 자격증이 취업에 유리하고 업무 활용이 높다고 인식했다.

• 공학교육연구
• /
• 제20권6호
• /
• pp.61-67
• /
• 2017

The purpose of this study is to find out the factors that have an effect on students, especially in the natural science track, would enter the college of Engineering. For this, the data of KEEP was used, and logistic regression was utilized for analyzing this data. The dependent variables are 'Entering the college of engineering' and 'No entering the college of engineering'. The probable independent variables are 'Sex', 'Interest in mathematics', 'mathematics study achievement', 'Interest in Science', 'Science study achievement', 'The area of book that is read', 'The area of club', 'Knowing about working environment and task of the job' and 'Knowing about prospect and wage of the job'. The results are as follows. These are 'Sex', 'Knowing about working environment and task of the job', 'Knowing about prospect and wage of the job' that affect statistically entering the college of engineering. In other words, the male student who know working environment, task, prospect and wage of the job well may enter the college of Engineering.

• 한국도서관정보학회지
• /
• 제39권1호
• /
• pp.339-354
• /
• 2008

정보기술은 도서관 업무에 영향을 미치는 중요한 요소로서 점차 다양한 분야의 도서관 서비스에 적용되어가고 있다. 그 결과 사서의 직무에도 많은 변화가 나타나고 있다. 이 연구에서는 사서직 구인광고를 조사하여 구체적으로 사서에게 요구되는 정보기술의 유형과 그 수준 및 현황을 분석하고자 하였다. 조사분석 결과 행정 및 운영, 참고, 수서 정리 등 분야별로 차별화되어 다양한 정보기술에 대한 지식과 기술이 요구되고 있는 것으로 나타났다.

• The Journal of Asian Finance, Economics and Business
• /
• 제10권1호
• /
• pp.19-29
• /
• 2023

Logistics industry is being an important industry in Vietnam with the contribution from 8-10% of GDP recently. This industry employs about 15 millions people. Increasing the employees' job satisfaction is become one of the most concerns of managers in logistics companies to strengthen the employee engagement and improve their business performance. The aim of this study is to investigate how employees' perceptions of job satisfaction are influenced by factors such as job stress, leadership capability, work-life balance, and demographics. 426 workers in the logistics sector in Vietnam were surveyed online. The acquired data was analyzed using a structural equation model. In total 16 hypotheses were established, 13 of which were deemed to be significant. The results demonstrate how the literature-informed second-order constructs can potentially explain the overall job stress, leadership capability, and work-life balance of employees in the Vietnamese logistics industry. These variables account for 54.8% of job satisfaction. This study makes a theoretical contribution to the extant literature by showing how researching second-order constructs can improve the theory's capacity to predict employees' job satisfaction. The paper concludes with a set of recommendations for the management of logistics firms in Vietnam.

• 대한물리치료사협회지
• /
• 제7권2호
• /
• pp.53-63
• /
• 1986

• 대한방사선기술학회지:방사선기술과학
• /
• 제28권1호
• /
• pp.45-53
• /
• 2005

전국 16개 시도의 44개 3차 의료기관에 근무하는 방사선사의 직무환경에서 발생되는 스트레스원과 개인적인 관련요인을 분석한 결과는 다음과 같다. 근무환경에서 스트레스원에 영향을 주는 개인적인 관련요인은 직위, 직무만족도, 신체화 증상이고, 역할관련에서는 직무만족도와, 신체적 증상이며, 직무안정성에 있어서는 직위와 직무만족도가 많은 영향을 주는 요인으로 나타났다. 직무자율성에서 영향을 주는 요인은 연령, 직위, 직무만족도이고, 직무부담에서는 직무만족도, 행동적 증상이며, 직무갈등에서는 직장동료, 직속상관, 직무만족도, 신체적 증상이 영향을 많이 주고 있는 것으로 나타났다.

• 유통과학연구
• /
• 제20권10호
• /
• pp.31-38
• /
• 2022

Purpose: This article focuses on exploring the associations between job satisfaction, organizational commitment, and turnover intention. Specifically, this study estimates the impacts of Vietnamese employees' job satisfaction on their organizational commitment and turnover intention in FDI enterprises. Research design, data and methodology: The measures are adapted from previous studies to develop a questionnaire with a seven-point Likert scale. The dataset is directly collected from 227 respondents who are employees at FDI enterprises situated in the North of Vietnam. The dataset is analyzed by quantitative approaches using SPSS 24.0 and AMOS 24.0. Results: The results show that while turnover intention is positively correlated with monthly income, it is negatively correlated with job satisfaction and organizational commitment. Also, organizational commitment is positively associated with job satisfaction among employees at FDI enterprises in Vietnam. Conclusions: The findings of this study will serve as useful references for administrators of FDI enterprises and policymakers to promote employees' job satisfaction and retain skilled employees.