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Featured researches published by Jae Kwang Lee.


Expert Systems With Applications | 2000

A case-based reasoning approach to cognitive map-driven tacitknowledge management

Jb Noh; Kc Lee; Jae-Kyeong Kim; Jae Kwang Lee; Soung Hie Kim

Abstract Knowledge is at the heart of knowledge management. In literature, a lot of studies have been suggested covering the role of knowledge in improving the performance of management. However, there are few studies about investigating knowledge itself in the arena of knowledge management. Knowledge circulating in an organization may be explicit or tacit. Until now, literature in knowledge management shows that it has mainly focused on explicit knowledge. On the other hand, tacit knowledge plays an important role in the success of knowledge management. It is relatively hard to formalize and reuse tacit knowledge. Therefore, research proposing the explication and reuse of tacit knowledge would contribute significantly to knowledge management research. In this sense, we propose using cognitive map (CM) as a main vehicle of formalizing tacit knowledge, and case-based reasoning as a tool for storing CM-driven tacit knowledge in the form of frame-typed cases, and retrieving appropriate tacit knowledge from the case base according to a new problem. Our proposed methodology was applied to a credit analysis problem in which decision-makers need tacit knowledge to assess whether a firm under consideration is healthy or not. Experiment results showed that our methodology for tacit knowledge management can provide decision makers with robust knowledge-based support.


International Journal of Intelligent Systems in Accounting, Finance & Management | 2000

A methodology for modeling influence diagrams: a case-based reasoning approach

Jae Kwang Lee; Jae Kyeong Kim; Soung Hie Kim

In this paper, a case-based reasoning approach to build an influence diagram is described. Building an influence diagram in decision analysis is known to be a most complicated and burdensome process. To overcome such a difficulty, decision class analysis is suggested, which treats a set of decisions having some degree of similarity as a single unit. This research suggests a case-based reasoning approach as a methodology to analyze a class of decisions. The candidate influence diagrams are retrieved from a set of similar influence diagrams, a case base. They are combined and modified by the node classification tree and DM’s preference for the given decision problem. For such a purpose, the case representation and retrieval process is explained with the adaptation process. We suggest using two measure, the fitness and garbage ratio for the case retrieval process. The basic concept of decision class analysis and case-based reasoning is very similar so the case-based reasoning approach is believed to be a better methodology to implement a decision class analysis. Copyright


한국지능정보시스템학회 학술대회논문집 | 2003

A Web-based CBR System for e-Mail Response

Young Suk Yoon; Jae Kwang Lee; Chang Hee Han


Journal of Decision Systems | 1999

An interactive approach to building an influence diagram based on neural networks

Jae Kyeong Kim; Jae Kwang Lee; Soung Hie Kim


Journal of Intelligence and Information Systems | 2003

A Case Based e-Mail Response System for Customer Support

Young Suk Yoon; Jae Kwang Lee; Chang Hee Han


Archive | 2000

ANALYZING A CLASS OF INVESTMENT DECISION IN NEW VENTURES : A CBR APPROACH

Jae Kyeong Kim; Jae Kwang Lee; Soung Hie Kim


한국경영과학회/대한산업공학회 공동학술대회 | 1999

Decision problem formulation using case-based reasoning

Jae Kwang Lee; Soung Hie Kim


대한산업공학회/한국경영과학회 춘계공동학술대회 | 1998

Building A Decision Analysis Model Using Neural-Network Based Decision Class Analysis

Jae Kwang Lee; Jae Kyeong Kim; Chang Hee Han; Soung Hie Kim


대한산업공학회/한국경영과학회 춘계공동학술대회 | 1998

Knowledge-based Class Analysis for building Quality Function Deployment

Jae Kyeong Kim; Chang Hee Han; Jae Kwang Lee; Soung Hie Kim


경영정보학연구 | 1998

Document Trace Diagram 과 IDEF 모델을 이용한 CALS 시스템 개발 방법론

성희 김; 성식 조; 재광 이; 창희 한; 영석 윤; Soung Hie Kim; Sung Sik Cho; Jae Kwang Lee; Chang Hee Han; Young Suk Yoon

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Soung Hie Kim

Saint Petersburg State University

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Soung Hie Kim

Saint Petersburg State University

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