Application of probabilistic fuzzy set to subjective workload assessment

Application of probabilistic fuzzy set to subjective workload assessment

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Article ID: iaor20062648
Country: Spain
Volume: 9
Issue: 2
Start Page Number: 93
End Page Number: 112
Publication Date: Nov 2004
Journal: Fuzzy Economic Review
Authors: ,
Keywords: fuzzy sets, economics
Abstract:

This article presents a new approach in workload assessment using fuzzy set theory. Operators' judgments are aggregated using Probabilistic Fuzzy Set (PFS), a multidimensional workload assessment instrument. Then, to deal with ordering of workload dimensions, information contained in this instrument is analysed using Fuzzy Dominance Relations (FDR) and non-numerical algorithms. The approach is applied to operators of milk-conditioning process, who are asked to give a judgment on four factors: execution speed, muscular effort, attention, and frustration. Compared to direct method based on simple average, the present approach allows for maintaining information entropy, and offers a selective analysis of factors (or posts) related to workload.

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