• 정보과학회 컴퓨팅의 실제 논문지
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• 제23권8호
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• pp.510-515
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• 2017

웹 어플리케이션은 로딩 시간을 빠르게 하는 것이 중요하다. 파싱은 로딩 과정 중 하나로서 로딩을 길어지게 하는 원인이 되고 있다. 이러한 이유로 파싱 쓰레드를 만들어 파싱을 병렬화 시킨 동시 파싱 기법이 제안되었다[3]. 그러나 동시 파싱은 파싱 순서에 대한 고려가 없다는 한계가 있었다. 본 논문에서는 동시 파싱을 사용할 때 어떤 함수를 먼저 파싱해야 하는가에 대한 휴리스틱을 제안한다. 파싱 우선 순위를 정하기 위해 실제 웹 어플리케이션의 자바스크립트 함수들을 분석하여 함수를 세 가지 기준으로 분류하였고, 각 분류의 호출 확률(call probability)을 구하였다. 조사한 호출 확률을 이용하여 높은 호출 확률을 갖는 함수들에 높은 파싱 우선 순위를 주었고, 반대로 낮은 호출 확률의 함수들은 낮은 우선 순위를 주었다. 정의한 우선 순위를 토대로 휴리스틱을 제안했고 이를 검증하기 위해 실제 웹 어플리케이션에서 로딩 시간을 측정하여 최대 3.8%, 평균 2.6%의 로딩 시간을 단축하였다.

• 조명전기설비학회논문지
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• 제18권6호
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• pp.78-83
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• 2004

현재 운용되고 있는 직접부하제어 알고리즘은 직접부하제어 사업에 참여에 따른 수용가의 개별 부하별 우선순위가 고려되지 않고 있고, 또한 제어 시간도 수용가의 불편을 고려되지 않고 획일적으로 일정 시간대에 일률적으로 수용가의 부하를 제어함으로써 참여 수용가의 불편 증대로 참여율이 저조한 실정이다. 따라서 본 연구에서는 참여 수용가의 불편을 최소화시키고 또한 개별 부하에 대한 우선순위 요구를 최대한으로 반영하기 위해 우선순위 기반 동적 프로그래밍을 이용한 직접부하제어 알고리즘을 제시한다. 제시되는 알고리즘은 직접부하제어가 발생되기 1시간 전에 참여 수용가가 스스로 해당 부하의 우선순위를 결정하여 직접부하제어 센터로 I-Mail 등으로 보네면 센터에서는 현재 부하의 전력량과 우선순위 그리고 OFF주기 등을 고려하여 동적 프로그래밍을 수행하여 OFF되어야 할 부하들을 선택하게 된다.

• 한국국방경영분석학회지
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• 제5권2호
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• pp.39-54
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• 1979

• 건축사
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• 통권529호
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• pp.82-83
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• 2013

• 산업경영시스템학회지
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• 제43권3호
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• pp.10-20
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• 2020

This paper presents a method to measure the similarity of assigned jobs in the gravure printing operation based on the chromaticity and color sequence, and order the jobs accordingly. The proposed dispatching rule can be used to fulfill diverse manufacturing site requirements because the parameters can be adjusted to prioritize chromaticity and color sequence. In general, dispatching rules either ignore the job-changing time or require that the time be clearly defined. However, in the gravure printing operation targeted in this study, it is difficult to apply the general dispatching rule because of the difficulties in quantifying the job-changing time. Therefore, we propose a method for generalizing assignment rules of the job planner, allocating relative similarity among assigned jobs, and determining the sequence of jobs accordingly. Chromaticity priority is determined by the arrangement of the color assignments in the printing operation; color sequence priority is determined by the addition, deletion, or change in a specific color sequence. Finally, the job similarity is determined by the dot product of the chromaticity and color sequence priorities. Implementation of the proposed dispatching rule at an actual manufacturing site showed the planner present the same job order as that obtained using the proposed rule. Therefore, this rule is expected to be useful in industrial sites where clear quantification of the job-changing time is not possible.

• 수산해양교육연구
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• 제25권1호
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• pp.139-151
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• 2013

Recently, in the context of increased interest for marine tourism, Jeju region of South Korea has attractive waterfront space and also has potential requirements for development. The objective of this paper was to analyze the priority for resource development of waterfront in Jeju region. In order to calculate the importance of factors related to the development of waterfront in Jeju area, this study conducted exploratory factor analysis to extract the factors and established the AHP model based on the factors name focusing on a total of 198 tourists. In this study, in accordance with the procedures of AHP analysis, pairwise comparisons were conducted focusing on a total of 15 experts. Especially, difference test between groups (academics and bureaucratic) was conducted. In the 1st criterion for evaluation, 'exploring experience' factor is most important thing and 'facilities & infrastructure' factors were in the following order. In the secondary criterion, AHP analysis showed that experience facilities, environmental management, and absence of residents consciousness were the important factors. In the future time, the results of this research can be utilized as basic data in the aspects of tourism development in Jeju waterfront region.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2009년도 춘계학술대회 논문집
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• pp.495-504
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• 2009

As the Reliability Centered Maintenance(RCM) is being studied, maintenance tasks can be performed effectively through the Risk Priority Number(RPN) evaluation about the components in the system. The RPN is usually calculated through arithmetical operations of three values, Severity, Occurrence, and Detection for each facility. This RPN provides information that includes risk level of the facility and the priority order of maintenance tasks for facility. However, if there is no sufficient historical failure data, it is difficult to calculate the RPN. In this case, historical failure data from other sources can be used and apply this data to korean railway system. In this paper, it is proposed that a new methodology to model the failure rate as a fuzzy membership function. This method is based on failure data from other sources by means of the fuzzy theory and the expert opinion system. And considering assessment tendency of each expert, distortions that happened when the failure rate of facilities is estimated were minimized. This results determine Occurrence values of facilities. Taking advantage of this result., the RPN can be calculated with Severity and Detection of facilities by using the fuzzy operation. The proposed method is applied the rail-way power substation.

• Environmental Analysis Health and Toxicology
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• 제5권3_4호
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• pp.1-17
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• 1990

In order to decide the priority of prevention activities in environmental pollution, a study must be carried out in the wide spectrum of causes and effects of pollution particularly effects on humanbeing in the concept of environmental engineering and toxicology Therefore, a study must be covered various segments of environment such as air, water/sea water, wastes and soil in other words sources of pollution should be analysed in the view point of intergrated efforts of engineering and toxicology to locate high priority of prevention activities which given the high value of human health.

• 한국보육지원학회지
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• 제16권3호
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• pp.1-17
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• 2020

Objective: The purpose of this study is to identify and prioritize sub-goals for infants and young children among the Korean Sustainable Development Goals (K-SDGs). Methods: The expert panel of this study consisted of 15 faculty members from the department of early childhood education or children's studies at 12 universities and was put together in order to conduct a Delphi survey. Results: As a result of the study, first, a total of 16 sub-goals were developed in order to target infants and young children. Second, the 16 sub-goals were then ranked according to their importance and urgency, and the most important goal were 'the improvement of mental health and prevention of drug abuse (K-SDG 3-2)'. And 'the elimination of violence and discrimination against girls (K-SDG 5-1, 5-2)', 'the safe and inclusive learning environment (K-SDG 4-8)' and 'end of abuse, trafficking, exploitation and all forms of violence against children (K-SDG 16-2)' were the next important and urgent goals. These priority objectives reflect the inviolable rights that infants and young children in Korea should be guaranteed by default. Conclusion/Implications: This study provided a basis for its effective implementation by identifying goals and priorities for infants and young children in comprehensive and interdependent K-SDGs.

• Industrial Engineering and Management Systems
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• 제16권1호
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• pp.129-140
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• 2017

This research was conducted in order to solve the problem of selecting an operational strategy for projects in project-based organizations by designing a fuzzy expert system. In the current research, we first determined the contributing parameters in operational strategy of project-based organizations based on existing research literature and experts' opinion. Next, we divided them into two groups of model inputs and outputs and the rules governing them were determined by referring to research literature and educational instances. In order to integrate rules, the revised Ternary Grid (revised TG) and expert opinions were applied according to a hybrid algorithm. The Ultimate rules were provided in Fuzzy Inference System format (FIS). In this FIS, proper manufacturing decisions are recommended to the user based on selected competitive priority and also project properties. This paper is the first study in which rules and relations governing the parameters contributing operational strategy in project-based organizations are acquired in a guided integrated process and in the shape of an expert system. Using the decision support system presented in this research, managers of project-based organizations can easily become informed of proper manufacturing decisions in proportion with selected competitive priority and project properties; and also be ensured that theoretical background and past experiences are considered.