인지지도와 사례기반추론을 이용한 암묵지 관리 방법론

학위논문(박사) - 한국과학기술원 : 경영공학전공, 2001.2, [ vii, 119 p. ]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 as a main vehicle of formalizing tacit knowledge, and case-based reasoning as a tool for storing cognitive map-driven tacit knowledge in a form of frame-typed cases, and retrieving appropriate tacit knowledge from case base according to a new problem. Tacit knowledge management framework we suggested includes three phases such as knowledge formalization, knowledge retrieval and adaptation, and problem-solving phase. Tacit knowledge formalization is performed by CM which can represent tacit knowledge hidden in individual’s memory in a form of a set of concept nodes and causality values between nodes. After multiple CMs have been explicated and stored as cases in case base, then we can retrieve such case from the case base considering the characteristics of problem on hand. This is knowledge retrieval and adaptation phase. Then, the final phase of our proposed tacit knowledge management is problem-solving phase in which a set of retrieved CM cases are applied to the given problem, and we can perform an appropriate inference with those retrieved CMs which would result in proper solutions or intuitions to the problem. If this use of tacit knowledge is repeatedly done in an orga...한국과학기술원 : 경영공학전공

갑상선 진단을 위한 컴퓨터 자문 시스템의 개발

학위논문(석사) - 한국과학기술원 : 산업공학과, 1989.2, [ [iv], 52 p. ]The use of digital computers in the selection of good diagnostic and treatment strategies has received an increased attention in recent years. Major reason for this interest is the general desire to improve the ability of the clinician to deal with the difficult problems that can arise in the management of a patient. In this thesis, a computer-assisted consultation system for diagnosing diseases of thyroid gland has been built. Prior to development of the system, an algorithm has been developed for selecting the optimal test flow which can be used to help physicians to determine the best combination and sequence of tests for a particular diagnostic problem. This algorithm uses entropy concepts in the information theory and considers the relation between tests, patient``s status, and the patient``s available cost, time, and risk for tests, as well as physicians experiences.한국과학기술원 : 산업공학과