Advances in a fuzzy decision theory that allow automatic cooperation between unmanned aerial vehicles (UAVs) are discussed. The algorithms determine points the UAVs are to sample, flight paths, and the optimal UAVs for the task and related changes during the mission. Human intervention is not required after the mission begins. The algorithms take into account what is known before and during the...

Uncertainty is an intrinsic feature of data containing the underlying information of reliability engineering realities. Randomness and fuzziness are two different type uncertainties although there is certain link between them. Cox’s PH (Proportional Hazards) models and Lawless and Thiagarajah’s CIF (Conditional Intensity Function) models addressed the random uncertainty in a very general format...

PURPOSE: The purpose of present paper is to compute the fuzzy reliability of the stainless steel utensil manufacturing unit for the constant failure and repair rates. The effect of variations of fuzzy reliability with time and system coverage factor for a set of failure and repair rates is also studied. METHODOLOGY/APPROACHThe mathematical model of Stainless Steel Utensil Manufacturing Unit has...

Reliability has vital significance to engineers and designers in a safety system. Consequently, failures free operation of components or sub-systems is of their key concern. To assess the reliability of such systems quantitatively, failure data of the components or sub-systems is essentially required. In general, such data is either not pre-recorded or present in linguistic form (good, bad etc)...

the public class parking as an essential component of a modern transport system within the city, provided spaces for the removal of stationary traffic in urban communication system, spaces to temporarily stop vehicles and thus the flow of traffic. locate the appropriate class parking using technological methods, particularly in metropolitan, maximum and optimum use of urban space, so improved p...

In this paper, we introduce a fuzzy extension of the Rand index, a well-known measure for comparing two clustering structures. In contrast to an existing proposal, which is restricted to the comparison of a fuzzy partition with a non-fuzzy reference partition, our extension is able to compare two proper fuzzy partitions with each other. Elaborating on the formal properties of our fuzzy Rand ind...

In this paper, conventional validity indexes are reviewed and the shortcomings of the fuzzy cluster validation index based on intercluster proximity are examined. Based on these considerations, a new cluster validity index is proposed for fuzzy partitions obtained from the fuzzy c-means algorithm. The proposed validity index is defined as the average value of the relative intersections of all p...