Table 5 Criteria evaluation and alternative assessments using linguistic variables.

From: A robust fractional fuzzy decision support framework for sustainable energy planning

Linguistic variable

Description

Values11

Absolute High Important (AHI)

The importance of an event is absolutely high.

(1, 0.1, 0.45)

High Important (GI)

The importance of the matter is high.

(0.95, 0.2, 0.55)

More Important (YOI)

Criteria classified as ’more important’ require careful evaluation, even if they are deemed less critical than categorized as ’absolute high’.

(0.85, 0.35, 0.65)

Equal Important (QI)

Each criterion under consideration should be assigned equal weight in the decision-making process.

(0.75, 0.5, 0.75)

Slightly Low Important (YWI)

While not as influential as criteria classified as ’Very High Important’, criteria classified as ’Slightly Low Important’ are quite important.

(0.65, 0.35, 0.85)

Low Important (WI)

The importance of the object is low.

(0.55, 0.2, 0.95)

Absolute Low Importance (AWI)

The criteria or factors under consideration are unlikely to have a significant impact on the decision-making process and have little significance.

(0.45, 0.1, 1)