Tien-Tsai Huang

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In terms of flexibility and product variety in lot-sizing systems of crisp cases, the average demand of per unit of time (mj), the relative duration of setup (qj), and the unit cost of production (cj) are considered. Instead of using the usual method that the mj, qj, and cj in the total cost function are respectively fuzzified by the triangular fuzzy(More)
Using signed distance for defuzzification and order statistics for measuring relative weight are applied in fuzzy evaluation of service quality. Many literatures reveal that service quality is usually evaluated by statistical method and also focused on one specific industry. The statistical method can estimate the mean of customers’ satisfactory level of(More)
Among all kinds of investment activities, security's transaction is an important activity among all investors' involvements in the past decade. How to find out the relationships between a security's name, price, trading quantity, and/or other scientific technical indices, humane feeling, and how these factors affect the buy or the sell timing is an(More)
In recent years, the existing universities of Taiwan face crucial competition due to the multiple impact of the decreasing rate of birth, widespread establishment of new universities, and the opening of branch divisions of foreign universities in Taiwan. In order to survive and develop in such an environment, university authorities need to improve service(More)
This article aims at the empirical study of fuzzy evaluating approach applied for banking operating performance in Taiwan. According to the available literature, evaluations of bank operating performance are commonly obtained through questionnaires with sampling, processed by statistical analysis methods. However, the vagueness of linguistic terms used by(More)
In real world, there are many uncertain conditions which cannot be absolutely pre-determined or controlled by the decision maker. Then, by the empirical experience in the market behavior, there are no fixed carrying cost rate, interest paid rate and interest earned rate. In this paper, we will extend Chen et al. [1] model with fuzzification in the carrying(More)
This paper extends the previous EOQ models with two-level trade credit to reflect the real-life situations by incorporating the following concepts: (1) the supplier offers the retailer an up-stream trade credit linked to order quantity, and (2) the dispensable assumptions of the up-stream trade credit is longer than the down-stream trade credit (N <; M)(More)
There are u main evaluation criteria, for each i &#x03B5; {1,2,&#x2026;, u}, under each i<sup>th</sup> criterion, there are k<inf>i</inf> second evaluation criteria,. These criteria are assessed by r experts with linguistic terms and transformed into corresponding triangular fuzzy numbers. Thus the weights can be derived from these criteria in the fuzzy(More)