퍼지 AHP를 이용한 철도 안전업무 종사자 수행도 평가 = Performance Evaluation for Railway Safety Workers using Fuzzy AHP

다국어 초록 (Multilingual Abstract)

This paper deals with the performance evaluation for railway workers who are in charge of railway safety by using fuzzy AHP (Analytic Hierarchy Process). Zadeh (1965) used to model vagueness and uncertainty in decision making processes arising due to lack of complete information. In this paper, we use the fuzzy set theory when we represent linguistic terms as decision maker preferences. At first, the fuzzy AHP procedure which is basically established by Cheng (1996) is introduced. Cheng (1996) used the Shannon entropy in the process of finding the normalized weights. As well as the Shannon entropy, we present another normalized weighting method that uses summation of each column from the final judgement matrix. For an example, we use the hierarchy model presented by Ryu (2007). We extend his model to the fuzzy environment for the proposed procedures to evaluate the railway workers`` performance. And then for the two normalized weighting methods, we try to explain how the normalized weights can differ according to the fuzzy judgement matrix of the two evaluation criteria and degree of fuzziness (-cut) which is necessary to defuzzify. Lastly, through the numerical result, we emphasize that it is important for a decision maker to choose what values of the fuzzy judgement matrix of the two evaluation criteria and degree of fuzziness.

참고문헌 (Reference)

1 이경근, "정보 보안 방안 선택을 위한 퍼지 AHP 방법의 비교 검토" 한국정보시스템학회 19 (19): 59-73, 2010

2 Saaty,T.L, "The Analytic Hierarchy Process" McGraw-Hill 1980

3 Cheng, C-H, "Evaluating Weapon System by Analytical Hierarchy Process based on Fuzzy Scales" 63 : 1-10, 1994

4 Cheng,C-H, "Evaluating Naval Tactical Missile Systems by Fuzzy AHP based on the Grade Value of Membership Function" 96 : 343-350, 1996

5 류시욱, "AHP를 이용한 철도종사자의 안전업무 수행도 평가에 관한 연구" 대한안전경영과학회 9 (9): 49-56, 2007