data envelopment analysis (dea) is a technique for measuring the efficiency of decision making units. in all models of the dea, for each unit under assessment, the numerical efficiency is obtained which may be less than or equal to one. given the possible large number of functional units, we use various ranking methods for evaluating units. one of the rating methods is balance index and topsis....

The equivalence between the interval-valued fuzzy set (IVFS) and the intuitionistic fuzzy set (IFS) is exploited to study linear programming problems involving interval uncertainty modeled using IFS. The non-membership of IFS is constructed with three different viewpoints viz., optimistic, pessimistic, and mixed. These constructions along with their indeterminacy factors result in S-shaped memb...

Interval methods are very convenient to describe the uncertainty of measurements and derived parameters in engineering sciences. In this paper, the geodetic determination of points in the 2d or 3d Euclidean space by least-squares estimation is studied. Up to now, two problems limited the applicability of interval mathematics. First, due to overestimation, interval boxes are too pessimistic unce...

We present a new approach for constructing regression and classification models for interval-valued data. The risk functional is considered under a set of probability distributions, resulting from the application of a chosen inferential method to the data, such that the bounding distributions of the set depend on the regression and classification parameter. Two extreme (‘pessimistic’ and ‘optim...

Asynchronous circuits have experienced a resurgence due to potential advantages to low-power and high-speed design. The timed signal transition graph model, an interpreted Petri net, is a formal specification that is capable to characterize the temporal behavior of asynchronous circuits by utilizing interval delays. However asynchronous circuits are prone to metastability, which may subside aft...

Theoretical and applied aspects of scenario analysis investment projects enterprises in the mineral resource sector economy are considered, its advantages disadvantages analyzed. Taking into account organizational economic features resources management, a number new modifications method, aimed at solving an urgent problem - reducing information uncertainty assessing expected efficiency risk pro...