• 한국지능정보시스템학회:학술대회논문집
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• 한국지능정보시스템학회 2001년도 The Pacific Aisan Confrence On Intelligent Systems 2001
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• pp.456-463
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• 2001

Understanding and adapting to changes of customer behavior in internet shopping mall is an important aspect to survive in continuously changing environment. This paper develops a methodology based on decision tree algorithms to detect changes of customer behavior automatically from customer profiles and sales data at different time snapshots. We first define three types of changes as emerging pattern, unexpected change and the added/perished rule. Then, it is developed similarity and difference measures for rule matching to detect all types of change. Finally, the degree of change is developed to evaluate the amount of change. A Korean internet shopping mall case is evaluated to represent the performance of our methodology. And practical business implications for this methodology are also provided.

• 대한한의학원전학회지
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• 제22권4호
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• pp.177-188
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• 2009

In the chapter "Cheonwon-gidaeron(天元紀大論)" of "Hwangjenaegyeong(黃帝內經)", Lee-Gyujun(李圭晙) corrected "heaven has the rule of six and earth has the rule of five[天六地五]" to "heaven has the rule of five and earth has the rule of six[天五地六]", and "sovereign fire is bright[君火以明]" to "sovereign fire is summoning[君火以召]", which changes the meaning of the rule of circulation of the heaven and earth. Considering the context and many scholars' opinions, it was suggested that "sovereign fire naming[君火以名]" which was noted from Tang dynasty to Jin & Wen dynasty was corrected to "sovereign fire is bright[君火以明]" over Ming dynasty. In the corrections of Wangbing(王冰)'s Plain Questions, the sentence is written as "sovereign fire naming[君火以名]". The two characters, '明' and '名' are hardly similar in both shape and meaning, that it is only plausible to assume that it was mistaken for '召'. Consequently, we corrected "sovereign fire is bright[君火以明]" to "sovereign fire is summoning[君火以召]". And "sovereign fire is summoning, ministerial fire is locating[君火以召, 相火以位]", it raise "the rule of five and six is combined together[五六相合]". "The rule of five and six is combined together' means 'heaven's number of five" coincide "earth's number of six", and it says former times before dividing up and down.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1992년도 한국자동제어학술회의논문집(국내학술편); KOEX, Seoul; 19-21 Oct. 1992
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• pp.309-314
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• 1992

Many dynamic mechanical systems, such as parts-feeders, walking machines, and percussive power tools, are described by equations of motion which are discontinuous. The discontinuities result from kinematic constraint changes which are difficult to foresee, especially in presence of impact. A simulation algorithm for these types of systems must be able to algorithmically predict and detect the kinematic constraint changes without any prior knowledge of the system's motion. This paper presents a rule-based approach to the prediction and detection of kinematic constraint changes between bodies with arc and line boundaries. The developed algorithm's ability to accurately and automatically detect the unpredicted changes of kinematic constraints is demonstrated with a numerical example.

• 한국중재학회지:중재연구
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• 제22권2호
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• pp.159-176
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• 2012

The Korean Commercial Arbitration Board (KCAB) recently revised its International Arbitration Rules in a way that reflects its efforts to advance its procedures, leading directly to improved competitiveness as an arbitration institute. Apart from certain limitations, the KCAB's international arbitration rule revision introduced several new arbitration mechanisms, including fast-track arbitration and an empowered administrative office. The International Chamber of Commerce (ICC) released a revised set of arbitration rules (ICC Arbitration Rules), which have been said to be probably the most consulted-on arbitration rules ever. Even though the changes codify existing ICC court practice and add to the 1998 rules only provisions felt necessary in light of input from the users of arbitration, some of the changes will have huge implications for future aspects of arbitration mechanisms, especially those of KCAB. Although it remains to be seen what impact the ICC Arbitration Rules will have in practice, the new rules have been well received by the arbitration community and represent a modern set of provisions consistent with the current needs of the users of international arbitration. That is why, here in the Korean arbitration environment, further research is needed on the possibilities of introducing several elements of the revised ICC Arbitration Rules to improve the speed and cost efficiency of international arbitration.

• KSBB Journal
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• 제6권3호
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• pp.263-270
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• 1991

The optimal cell concentration and dilution rate for maximum ethanol productivity were obtained using dynamic simulation in cell recycled continuous bioreactor. The good control performance was observed using rule-based STR (self-tuning regulator) compared to conventional STR. Rule-base contained the scheme to implement the STR in an efficient on-off way and the scheme for the controlled variable to reach the optimal value in a short time. Since a mathematical model was used to analyze and estimate the changes of the state variables and the parameters, it was possible to understand the physical meaning of the system.

• Communications for Statistical Applications and Methods
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• 제20권5호
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• pp.377-385
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• 2013

We consider a compound Poisson risk model in which the premium rate changes when the surplus exceeds a threshold. The explicit form of the ruin probability for the risk model is obtained by deriving and using the overflow probability of the workload process in the corresponding M/G/1 queueing model.

• 한국정보과학회논문지:컴퓨팅의 실제 및 레터
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• 제11권3호
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• pp.246-256
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• 2005

규칙 기반 패러다임은 복잡한 프로세스를 처리할 수 있는 정형성과 융통성을 제공하기 때문에 여러 프로세스 중심 소프트웨어 공학 환경에 도입되어 왔다 그러나, 기존의 규칙 기반 패러다임을 채택한 시스템들의 경우 프로세스 모델을 작성하거나 이해하기 어렵고 프로세스 모델링 언어가 확장 또는 개선될 때마다 추론 엔진을 수정하거나 최악의 경우에는 새로 개발하여야 한다. 본 논문에서는 빈번히 발생하는 프로세스 변경에 유동적으로 대처할 수 있으며 프로세스 모델을 규칙기반 언어의 사실로 직관적으로 맵핑함으로써 프로세스의 병렬성을 효과적으로 제어할 수 있다는 규칙 기반 패러다임의 장점을 살리면서 기존 규칙 기반 PSEE의 단점인 사용의 용이성과 추른 엔진의 안정성 문제를 해결한 PRAiSE 시스템을 기술한다. PRAiSE에서는 RAiSE라는 그래픽 프로세스 모델링 언어를 제공하며 작성된 프로세스 모델은 규칙 기반 전문가 시스템 도구인 CLiPS로 구현한 프로세스 엔진에 의해 해석되고 실행된다.

• 한국환경과학회지
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• 제32권10호
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• pp.675-684
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• 2023

In this study, the water supply reliability of the andong and Imha dam was analyzed using inflow data for 360 months from 1993 to 2022 through allocation model. First, in the analysis results of additional water supply to Deagu city, the water supply reliability of Rule (B) was the highest at 86% for andong dam, 84% for imha dam, and 80% for the control point. However, when the planned supply was supplied, the analysis results showed 94%, 93%, and 90%. Next, in the quantitative reliability analysis results, when considering additional water supply to Deagu city, Rule (A), Rule (B), and Rule (C) were analyzed as 88%, 88%, and 88%, respectively, based on the control point. When supplying the planned water supply, the quantitative reliability analysis results were 95% equally based on Rule (A), Rule (B), and Rule (C). Because of evaluating the two reliability methods, the number of shortages increases significantly when additional water is supplied to Daegu City, but the shortage is generally 5-7%, resulting in a relatively small shortage compared with the increase in the number of shortages. In the case of resilience and vulnerability, additional water supply to Daegu City takes more than two months to restore than the existing planned water supply, and the average shortage was calculated to be smaller than that of supplying the planned water. According to the results of the analysis, Andong dam has an average water storage of 130x106 m² and Imha dam has 50x106 m². In this deficient water supply can be compensated by water from the Nakdong river.

• 대한가정학회지
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• 제47권1호
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• pp.45-54
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• 2009

The purpose of the study is to examine the characteristics of the ideal housing for the modern family suggested by the Home Exposition (September, 1915) under the Japanese colonial rule in the macroscopic context of social change and the microscopic context of family. Through this research, we expect to have a partial understanding not only of changes in the outward appearance of traditional housing spaces during the civilization period and the early Japanese colonial rule when foreign cultures began to be introduced but also of families'residential lives and the patterns of change in people's consciousness of housing. Major conclusions from the current analysis are as follows. First, there were some changes in family paradigm induced through a home exhibition. Second, the most important factor for an ideal housing was that it must be the source of harmonic and healthy family life. Third, the importance of an appropriate space norm should be emphasized by providing the minimum size of each room. Fourth, the significance of the housing values of the economy, convenience, and hygiene should be emphasized for the ideal housing. Lastly, it was implied that for an ideal housing, the social and psychological aspects of housing must be satisfied along with the physical aspects. The limitation was that the model of ideal family housing presented in the Home Exposition cannot exclude the characteristics of the colonial perspectives in that it was followed by the model for the Japanese families.

• 경영정보학연구
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• 제8권2호
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• pp.119-138
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• 2006

데이터 마이닝의 연관성규칙 분석 기법(Association Rule Mining)은 현실문제에의 많은 활용에도 불구하고 시간의 흐름에 대한 변화 파악 및 분석에서는 한계를 가지고 있다. 본 연구에서는 기존의 두 시점에서의 고객 행위 변화 파악 기법을 재귀적 방법을 통하여 다시점으로 확장하여 분석할 수 있는 방법론을 제시한다. 즉, 본 연구에서는 연관성규칙의 패턴 및 변화의 추세를 장기간에 걸쳐 지속적으로 관찰함으로써, 고객의 일시적인 변화보다는 지속적인 행위 변화를 관찰할 수 있도록 하는 방법론을 구성한다. 방법론을 검증하기 위해 L백화점의 4년간의 구매관련 데이터를 분석하여 그 결과를 제시하고 있다.