Front Cover JRTPPI Vol.5 No.1

Journal of Uncertain Systems, Vol5 No1, 2011, World Academic Union (World Academic Press)

Multi Period–Multi Product (MPMP) production planning problems are well-known in the literature and several researches had been carried out in this area. However, designing a well organized control mechanism in terms of time– cost point of views had not been taken into considerations. In this paper, such a control mechanism is implemented successfully using earned value analysis which is well-k...

Journal of Uncertain Systems, Vol5 No1, 2011, World Academic Union (World Academic Press)

This paper deals with rough set approach on lattice theory. We represent the lattices for rough sets determined by an equivalence relation. Without any loss of generality, we have defined the rough set as a pair of sets (lower approximation set, upper approximation set) and then we showed that the collection of all rough sets of an approximations by an equivalence relation form a lattice by som...

Journal of Uncertain Systems, Vol5 No1, 2011, World Academic Union (World Academic Press)

This paper deals with the problem of testing hypothesis when both the hypotheses and the available data are fuzzy. First, four different kinds of fuzzy hypotheses are defined. Then, a procedure is developed for constructing the fuzzy point estimation based on fuzzy data. Also, the concept of fuzzy test statistic is defined based on the α-cuts of the fuzzy null hypothesis and the α-cuts of the c...

Proceedings Front Cover 8X10

The integrated Rule Oriented Data Management System (iRODS) is a policy-driven data management system that is starting to be used by projects with large data volume requirements that require a highly available system. In this paper we describe an approach to provide a Highly Availability load-balanced iRODS System (HAIRS). We also describe the advantages and disadvantages of the approach and fu...

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