A semi-automatic SAR sea ice classification algorithm is described. It is based on combining the information in the original SAR data with those in the three ‘image’ products derived from it, namely Power-to-Mean Ratio (PMR), the Gamma distribution and the second order texture parameter entropy, respectively. The latter products contain information which is often useful during the manual interp...

Generating the so-called linguistic summaries of databases, exemplified by About half of records have very high values of attribute A, in sense of Yager [17] [19] with further improvements [2] [5] is described. The original authors’ contribution is the use of Interval Type-2 Fuzzy Sets [8] [9], instead of ordinary fuzzy sets, to model imprecise but understandable natural language propositions l...

The paper presents a certain class of the mathematical models diagnostic information granules describing fuzzy symptoms-faults relationship. A retrieval system is described as an application expert system. Symptoms and faults are fuzzy, with some scaling symptom-fault concept pair values. These value pairs can be considered intuitionistic sets for space diagnosed objects. In this article, (n-Sc...

Managers nowadays face challenging decisions on daily basis and must weigh a growing number of factors while making such decisions. Previously, judgments were frequently assessed solely based single criterion, as profit or cost. Cost profit, the other hand, rarely captures desirability decision option. One most common popular research domains in science theory is multiple attribute (MADM) probl...

We analyze the problem of decision making under ignorance with regrets. Recently, Yager has developed a new method for decision making where instead of using regrets he uses another type of transformation called negrets. Basically, the negret is considered as the dual of the regret. We study this problem in detail and we suggest the use of geometric aggregation operators in this method. For doi...

Data envelopment analysis (DEA) is a methodology for measuring the relative efficiencies of a set of decision making units (DMUs) that use multiple inputs to produce multiple outputs. In the conventional DEA, all the data assume the form of specific numerical values. However, the observed values of the input and output data in real-life problems are sometimes imprecise or vague. Previous method...

This chapter describes different methods for comparing and ordering fuzzy numbers. Theoretically, fuzzy numbers can only be partially ordered, and hence cannot be compared. However, in practical applications, such as decision making, scheduling, market analysis or optimisation with fuzzy uncertainties, the comparison of fuzzy numbers becomes crucial. Theoretically, fuzzy numbers can only be par...

A dozen papers have considered the concept of negation probability distributions (pd) introduced by Yager. Usually, such negations are generated point-by-point functions defined on a set values and called here negators. Recently class pd-independent linear negators has been characterized using Yager’s negator. The open problem was how to introduce involutive generating pd. To solve this problem...

A Pythagorean fuzzy set is the superset of and intuitionistic sets, respectively. Yager proposed concept sets in which he relaxed condition that sum square both membership degree nonmembership an element a must not be greater than 1. This paper introduces two new techniques to solve L R -type fully linear progra...

tuberculose has increased in the recent years. use of a sensitive screening method, can be one of the influential parameters in reduction of pulmonary tuberculosis. current screening method in the laboratories is based on observation of bacilli in stained smear by ziel-neelsen procedure. the aim of this research was to study the pcr efficiency in all confirmed patients of hamadan province. twen...