A study of modified VIKOR method to evaluate and improve LED track light

• Main Authors: Chia-Hua Chang, 張家華
• Other Authors: Zone-Ching Lin
• Format: Others
• Language: zh-TW
• Published: 2019
• Online Access: http://ndltd.ncl.edu.tw/handle/7wyscj

碩士 === 國立臺灣科技大學 === 機械工程系 === 107 === Taking LED projection light and LED stage light for example, the paper studies product technical domains from develops combination of product techniques/technical-matrix, which is acquired from patent analysis, then develops the modified VIKOR method that combines eith the modified DANP method, and calculates the required priority order of technical improvement projects. Through opinions of experts and by the way of questionnaire survey, traditional DEMATEL determines the values 0~4 of the degree of influence, which represents “no influence,” “low influence,” “medium influence” “high influence” and “extremely high influence” respectively. First of all, the paper proposes the modified DEMATEL method, which uses the concept of normalized numerical values to evaluate the degree of mutual influence among the criteria 0~4. Normalized numerical value, based on the multiple documents about patent techniques, refers to the ratio of the appearance frequency of important techniques and component keywords of term segmentation and word segmentation system, to the total number of words of the full texts of the related patent groups. In the paper LED projection light and LED stage light are taken as examples. Extending the DANP research results of a scholar, the paper employs VIKOR method to continue the analysis, thus forming the modified VIKOR method.