Pythagorean -Polar Fuzzy Weighted Aggregation Operators and Algorithm for the Investment Strategic Decision Making

摘要

The role of multipolar uncertain statistics cannot be unheeded while confronting daily life problems on well-founded basis. Fusion (aggregation) of a number of input values in multipolar form into a sole multipolar output value is an essential tool not merely of physics or mathematics but also of widely held problems of economics, commerce and trade, engineering, social sciences, decision-making problems, life sciences, and many more. The problem of aggregation is very wide-ranging and fascinating, in general. We use, in this article, Pythagorean fuzzy numbers (PFNs) in multipolar form to contrive imprecise information. We introduce Pythagorean - polar fuzzy weighted averaging (P FWA), Pythagorean - polar fuzzy weighted geometric (P FWG), symmetric Pythagorean - polar fuzzy weighted averaging (SP FWA), and symmetric Pythagorean - polar fuzzy weighted geometric (SP FWG) operators for aggregating uncertain data. Finally, we present a practical example to illustrate the application of the proposed operators and to demonstrate its practicality and effectiveness towards investment strategic decision making.