Abstract An alternative look at the linear regression model is taken by proposing an original treatment of a full column rank (design) matrix. In such situation, Moore–Penrose inverse matrix can be obtained utilizing particular formula which applicable solely when to inverted columnwise partitioned into two matrices disjoint ranges. It turns out that this approach, besides simplifying derivatio...

An expert may experience difficulties in decision making when evaluating alternatives through a single assessment value hesitant environment. A fuzzy linear regression model (FLRM) is used for decision-making purposes, but this entirely unreasonable the presence of information. In order to overcome issue, paper, we define (HFLRM) account multicriteria (MCDM) problems The HFLRM provides an alter...