Vector Similarity Measures of Dual Hesitant Fuzzy Linguistic Term Sets and Their Applications

The dual hesitant fuzzy linguistic term set (DHFLTS) is defined by two functions that express the grade of membership and non-membership using a terms. In present work, we first quote an example to point out existing complement operation DHFLTS on wrong track. Meanwhile, redefine this fill holes in ones. Next, notion information energy under background provided order build criteria weight determination model. To further facilitate theory DHFLTS, propose vector similarity measures, i.e., Jaccard Dice their weighted forms for DHFLTS. addition, pioneer some generalized measures DHFLTSs indicate are particular instances parameter values. Afterward, measures-based model with unknown environment constructed. Lastly, illustrated included validate method’s application, along sensitivity analysis comparative analysis, demonstrating practicality validity its results.