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Type of publication: research article
Type of publication (PDB): Straipsnis Clarivate Analytics Web of Science / Article in Clarivate Analytics Web of Science (S1)
Field of Science: Matematika / Mathematics (N001)
Author(s): Užupytė, Rūta;Wit, Ernst C
Title: Test for triadic closure and triadic protection in temporal relational event data
Is part of: Social network analysis and mining. Wien: Springer, 2020, Vol. 10, iss. 1
Extent: p. 1-12
Date: 2020
Note: Article Number: 21
Keywords: Relational event modelling;Triadic closure;Triadic protection;MoM estimator
Abstract: Temporal relational events are evidence of dynamically evolving social networks. The timing of the creation and dissolving of enduring ties, such as friendships or alliances, often depend on a large variety of factors. Particularly, the presence of the so-called triadic or transitive effects suggests a certain maturity of the underlying social process and is an important feature of various social relationships. Various models have been proposed to capture various determinants of such temporal relational events. The main obstacle for widely using these models in practice is their computational complexity, especially for modern, online recorded data. The aim of this paper is to propose a simple test for the presence of triadic effects in relational event data. We propose a joint test for triadic closure and triadic protection of ties, based on a combination of a method-of-moments estimator and a Hotelling’s T2 test. Such test is computationally fast and statistically near-efficient, and we show how the test is particularly insightful for the analysis of two studies involving relational event data
Affiliation(s): Baltijos pažangių technologijų institutas, Vilnius
Matematikos ir statistikos katedra
Vytauto Didžiojo universitetas
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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