Applying Evidence Theory to Aggregate Feedbacks in 360 Degree Feedback Model

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Nahid Titkanlu Hossein; KERAMATI ABBAS

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Journal Paper

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Journal: MODERN RESEARCHES IN DECISION MAKING Year:2018 | Volume:3 | Issue:2 Page(s): 275-299

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Title

Applying Evidence Theory to Aggregate Feedbacks in 360 Degree Feedback Model

Author(s)

Nahid Titkanlu Hossein | KERAMATI ABBAS | Issue Writer Certificate

Keywords

UncertaintyQ1

360 degree AssessmentQ2

Evidence TheoryQ1

Data aggregationQ1

Abstract

In 360 degree feedback model several groups of raters with different perspectives provide assessments typically in Likert scale format. Due to the qualitative and subjective nature of the assessments, these data are highly uncertain and divergent. This problem causes that aggregation of the data in 360 degrre model, with traditional average based methods be inaccurate and invalid. Regarding the importance of the aggregation problem in 360 degrre feedback process and lack of a suitable solution to cope with it, in this paper a new model based on Evidence Theory has been proposed to aggregate its assessments and model the Uncertainty contained in it. In the proposed model, first the evaluation data obtained from each rating group has been aggregated and its Uncertainty has been modeled using a basic belief assignment. In the next step, the evidences obtained from rating groups have been aggregated using evidence combination rules. To design the model, various methods to transform feedbacks to basic belief assignents, various evidence combination rules and different criteria in extracting the final results of the model, have been investigated through a simulation study. In the simulation process the model's performance in 27 different states, defined based on different combination of model's parameters, and using ten thousand simulated records, has been examined. Results reveal that the proposed model, compared to the traditional average based aggregation, significantly reduces error and increase the accuracy of the results in 360 degree feedback model. In addition, other benefits of the proposed model have been explained in the text.

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APA: Copy

Nahid Titkanlu, Hossein, & KERAMATI, ABBAS. (2018). Applying Evidence Theory to Aggregate Feedbacks in 360 Degree Feedback Model. MODERN RESEARCHES IN DECISION MAKING, 3(2 ), 275-299. SID. https://sid.ir/paper/372340/en

Vancouver: Copy

Nahid Titkanlu Hossein, KERAMATI ABBAS. Applying Evidence Theory to Aggregate Feedbacks in 360 Degree Feedback Model. MODERN RESEARCHES IN DECISION MAKING[Internet]. 2018;3(2 ):275-299. Available from: https://sid.ir/paper/372340/en

IEEE: Copy

Hossein Nahid Titkanlu, and ABBAS KERAMATI, “Applying Evidence Theory to Aggregate Feedbacks in 360 Degree Feedback Model,” MODERN RESEARCHES IN DECISION MAKING, vol. 3, no. 2 , pp. 275–299, 2018, [Online]. Available: https://sid.ir/paper/372340/en

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