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Part of the book series: Studies in Systems, Decision and Control ((SSDC,volume 447))

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Abstract

Group decision making (GDM) or collective decision-making is a situation faced when individuals collectively make a choice from the alternatives before them.

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Correspondence to Hsu-Shih Shih .

Appendix A

Appendix A

Constants for \(\overline{X}\) and R charts

k

A2

D3

D4

d2

2

1.880

0

3.268

1.128

3

1.023

0

2.574

1.693

4

0.729

0

2.282

2.059

5

0.577

0

2.114

2.326

6

0.483

0

2.004

2.534

7

0.419

0.076

1.924

2.704

8

0.373

0.136

1.864

2.847

9

0.337

0.184

1.816

2.970

10

0.308

0.223

1.777

3.078

Note The table is from Gryna (2000)

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Shih, HS. (2022). Group Aspects of TOPSIS. In: TOPSIS and its Extensions: A Distance-Based MCDM Approach. Studies in Systems, Decision and Control, vol 447. Springer, Cham. https://doi.org/10.1007/978-3-031-09577-1_4

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