In 1987 Dubois and Prade defined an interval-valued expectation of fuzzy numbers, viewing them as consonant random sets. In 2001 Carlsson and Fullér defined an interval-valued mean value of fuzzy numbers, viewing them as possibility distributions, and they introduced the notation of crisp possibilistic mean value and crisp possibilistic variance of continuous possibility distributions, which ar...

Dubois and Prade introduced the mean value of a fuzzy number as a closed interval bounded by the expectations calculated from its upper and lower distribution functions. In this paper introducing the notations of lower possibilistic and upper possibilistic mean values we definine the interval-valued possibilistic mean and investigate its relationship to the interval-valued probabilistic mean. W...

In this paper, we propose a method to calculate the correlation coefficient of generalized intuitionistic fuzzy sets by means of "centroid". The value which obtained from this method tell us the strength of relationship between the generalized intuitionistic fuzzy sets [11] and the whether the generalized intuitionistic fuzzy sets are positively or negatively related. This method looks better t...

A novel approach to the problem of regression modeling for fuzzy input-output data is introduced.In order to estimate the parameters of the model, a distance on the space of interval-valued quantities is employed.By minimizing the sum of squared errors, a class of regression models is derived based on the interval-valued data obtained from the $alpha$-level sets of fuzzy input-output data.Then,...

A construction project is a series of activities carried out to construct building within specified period. Delay in projects problem that often occurs so these constraints make the implementation time not as specified. The success management based on proper control. This research real data from one hospital Bandung. purpose this study estimate completion using Earned Value and Schedule methods...

The question of whether the benefits of the earned value management process exceed the costs has not been adequately reported in the literature. Several studies report the costs but ignore the benefits. Others focus on the benefits, but ignore the costs. For example, a widely circulated report by Coopers & Lybrand and TASC (1994) concludes that the DOD regulatory cost is significant, and the re...