• Journal of the Korean earth science society
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• v.42 no.3
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• pp.365-380
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• 2021

This study aimed to explore the characteristics of scientific observation and reasoning of gifted middle-school students in rock identification. Five rock samples that are considered important as per science textbooks, including igneous, metamorphic, and sedimentary rocks, were provided to 19 first-year middle-school students attending a gifted education center. Students were asked to infer the formation process, type, and name of each rock. The results showed that the characteristics of rocks that students primarily paid attention to included color, texture, and structure. Students immediately succeeded in identifying common rocks based on memory; however, meaningful inferences were not made. In case of rocks that students faced difficulty discriminating, significant reasoning processes were revealed through discourse. In addition, although scientific reasoning was properly constructed based on meaningful observations, there were cases wherein rock identification failed. These results will contribute to determining the current level of understanding of middle-school students in rock identification activities and finding ways to provide students with meaningful scientific observation and inference experiences through rock identification in the school field.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 1997.10a
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• pp.109-112
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• 1997

In this study, we attempt to improve analytical methods in auditing by applying Artificial Intelligence(AI) methods including Artificial Neural Networks(ANN) and Case-Based Reasoning(CBR), and to perform pattern recognition of the investigation signals generated by analytical procedures. Five years of audited financial data from a large-sized firm were used to calculate four commonly applied financial ratios. This exploratory study shows that the use of AI methods to analyze patterns of related fluctuations across numerous financial ratios provides improved performance in recognizing material misstatements within the financial accounts.

• Proceedings of the Korean Information Science Society Conference
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• 2001.04b
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• pp.337-339
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• 2001

간호진단, 중재, 결과로 이어지는 간호 프로세스에서 가장 전문적인 지식을 요구하는 간호진단 업무를 지원하는 전산시스템에 대해 우리나라에서도 많은 연구와 시도가 있었다. 그러나 기록만 전산화되었거나 부분적으로 표준화된 데이터를 이용함에 따라 간호진단업무에 능숙하지 않은 간호사의 경우 전산화를 통한 진단업무효율 향상을 기대하기 어렵다. 이에 우리는 간호진단의 적중률을 높이기 위해서 간호 프로세스의 표준데이터와 사례를 기반으로 추론하는 간호진단시스템을 제안한다. 표준 데이터를 이용하여 예상되는 간호진단을 1차적으로 검색한 후, 다시 사례데이터베이스를 기반으로 하여 1차 검색의 결과를 보완하는 방법을 이용하고 있다.

• Proceedings of the Korea Information Processing Society Conference
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• 2000.10a
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• pp.301-304
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• 2000

전자상거래 지원 시스템에서 판매지원 에이전트는 고객의 취향을 파악하여 구매자에게 가장 적절한 상품을 탐색하여 사용자의 만족도를 극대화할 수 있어야 한다. 이에 인공지능 기법에 하나인 사례기반 추론기법을 이용한 판매지원 에이전트와 감성공학을 응용한 신제품 디자인 개발지원 에이전트를 결합한 다중 에이전트 시스템을 제안하고자 한다.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2003.05a
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• pp.23-35
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• 2003

회전기계의 결함발생은 기계의 여러 상태변화에 의한 결과이며, 이 때 발생하는 증상(현상) 또한 다양하고 복잡하기 때문에 기계의 특성을 파악하고 원인을 추정하기 위해서는 매우 전문적인 지식과 오랜 경험이 필요하다. 실제 산업현장에서 사용되는 각종 회전기계들은 고성능화, 복잡화 및 전문가의 부족으로 인해, 결함발생 시 원인과 발생현상의 관계를 명확히 표현하기에는 어려움이 있다. 이에 최근에는 진단에 관한 전문적인 지식을 구조적으로 표현할 수 있는 전문가 시스템(expert system)의 도입을 위한 연구가 활발히 이루어지고 있다.(중략)

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 1996.10a
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• pp.340-343
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• 1996

실세계에서 존재하는 대부분의 지식은 다양한 패턴들로 구성되어 있다. 본 논문에서는 사례베이스 추론(Case-Based Reasoning : CBR)에서 다중의 의미를 갖는 불확실한 지식을 쉽게 표현할 수 있는 러프 집합을 이용하여 지식의 함축의 의미를 갖는 지식을 간략화하는 방법을 제안한다. 전문가의 지식 구조를 명확화 하는데는 많은 노력이 필요하고 지식획득의 병목현상이 일어난다. 이러한 문제점을 해결하기 위해 많은 사례의 수를 러프 집합의 성질을 이용하여 사례를 동치 클래스로 분류하여 사례의 수를 감소하므로써 CBR의 기능을 향상시킨다.

• Proceedings of the Korea Information Processing Society Conference
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• 2004.11a
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• pp.3-6
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• 2004

전자상거래의 지원 시스템에서 판매지원 에이전트는 고객의 취향을 파악하여 구매자에게 가장 적절한 상품을 탐색하여 사용자의 만족도를 극대화할 수 있어야 한다. 이에 데이타마이닝의 기법 중의 하나인 사례기반추론기법을 이용한 판매지원 에이전트와 감성공학을 이용한 신제품 개발지원과 기존 제품의 리모델링을 제시하는 에이전트를 결합한 다중 에이전트 시스템을 제안하고자 한다.

• Journal of the Korea Safety Management & Science
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• v.3 no.4
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• pp.103-112
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• 2001

In Factory, as the number of machine is increased the more maintenance efforts are necessary. Multi maintenance issues may occur at a certain time and the determination of maintenance sequence is needed. In this study, we first compare the priority of machines and the impact value using modified FMEA(Failure Mode Effect and Analysis) method. Also, CBR(Case-based Reasoning) approach is applied to retrieve similar fault cases of current machine problem. The proposed methodology will be useful to implement decision support system of maintenance sequence for CMMS/EAM (Computerized Maintenance Management System/Enterprise Asset Management).

• The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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• v.18 no.2
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• pp.31-39
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• 2012

Background: The purpose of this study was to develop a problem-based learning model for orthopedic manual physical therapy. A problem-based learning (PBL) model for orthopedic manual physical therapy developed from PBL module of Jeju C university (Halla-Newcastle PBL Center). A summary of this study is as follows: 1) PBL model is comprised of a class of 30 students, operated small group as of 4~5 students. 2) PBL is suggested a scenario of clinical case, induced variety reaction through group discussion and presentation. 3) PBL is occurred wide variety learning through group work activity and self-directed learning. 4) The tutor as a facilitator is played a guide for group discussion, work activity and team learning. 5) The evaluation for PBL is performed such as student self-evaluation, group activity evaluation, individual presentation, and practice. This model is considered wide variety learning through team learning and self-directed learning by clinical reasoning and problem solving for musculoskeletal clinical case. We suggest problem based learning for the education of orthopedic manual physical therapy in which the learners are very interested in and has the effective outcome.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.20 no.44
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• pp.485-496
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• 1997

To develop an Enterprise Data Model in Information Strategy Planning, it is essential that we first decide on the critical entities that need to be consistently managed in the enterprise. Identifying entities is a very crucial decision that has much influence on the subsequent phases in Information Engineering. Nevertheless, it is very subjective and usually depends on a decision makers experience and his/her own knowledge. In this paper, we propose a decision support system called CB*IMSS, which employs Case-Based Reasoning as the problem solution technique. By retrieving, analyzing and adapting some similar previous cases with a decision makers enterprise situations, this system can help them identify and decide the critical entities required for successful performance of the ISP.