نوع فایل power point قابل ویرایش 21 اسلاید قسمتی از اسلایدها we have introduced a methodology to rank the available products in the Internet market. These rankings are based on the customers’ own preferences and also on the information in the different search engines about the products. And moreover : We recommend an appropriate form of aggregation for several fuzzy concepts in e_business works. Introduction : ho ...