Statistical measurement of trees’ similarity

Sahar Sabbaghan (), Cecil Eng Huang Chua () and Lesley A. Gardner ()
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Sahar Sabbaghan: London South Bank University
Cecil Eng Huang Chua: Missouri University of Science & Technology
Lesley A. Gardner: University of Auckland

Quality & Quantity: International Journal of Methodology, 2020, vol. 54, issue 3, No 4, 806 pages

Abstract: Abstract Diagnostic theories are fundamental to Information Systems practice and are represented in trees. One way of creating diagnostic trees is by employing independent experts to construct such trees and compare them. However, good measures of similarity to compare diagnostic trees have not been identified. This paper presents an analysis of the suitability of various measures of association to determine the similarity of two diagnostic trees using bootstrap simulations. We find that three measures of association, Goodman and Kruskal’s Lambda, Cohen’s Kappa, and Goodman and Kruskal’s Gamma (J Am Stat Assoc 49(268):732–764, 1954) each behave differently depending on what is inconsistent between the two trees thus providing both measures for assessing alignment between two trees developed by independent experts as well as identifying the causes of the differences.

Keywords: Diagnostic theory; Tree; Threshold building (search for similar items in EconPapers)
Date: 2020
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DOI: 10.1007/s11135-019-00957-8

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