乏確資訊擷取系統已能執行，然而資料的乏確性定義受限於資料庫的構建者，本文引用決 策分析處理不確定性的風險偏好法，並修改乏確資料表示法與乏確資訊擷取程序，期能讓使用 者依風險偏好於原乏確資料庫中找到最適當資料。

Fuzzy information retrieval system (FIRS) [4】has been designed and implemented, but the definition of fuzzy data is defined by the builder. We combine the risk preference concept on decision making under uncertainty with FIRS and revise the expression of fuzzy data and the pre-fetch procedure in FIRS, in order that the user could get proper information from the original fuzzy data base according to his risk preference.