Integration of model-based recursive partitioning with bias reduction estimation: a case study assessing the impact of Oliver’s four factors on the probability of winning a basketball game

Manlio Migliorati (), Marica Manisera and Paola Zuccolotto
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Manlio Migliorati: University of Brescia
Marica Manisera: University of Brescia
Paola Zuccolotto: University of Brescia

AStA Advances in Statistical Analysis, 2023, vol. 107, issue 1, No 13, 293 pages

Abstract: Abstract In this contribution, we investigate the importance of Oliver’s Four Factors, proposed in the literature to identify a basketball team’s strengths and weaknesses in terms of shooting, turnovers, rebounding and free throws, as success drivers of a basketball game. In order to investigate the role of each factor in the success of a team in a match, we applied the MOdel-Based recursive partitioning (MOB) algorithm to real data concerning 19,138 matches of 16 National Basketball Association (NBA) regular seasons (from 2004–2005 to 2019–2020). MOB, instead of fitting one global Generalized Linear Model (GLM) to all observations, partitions the observations according to selected partitioning variables and estimates several ad hoc local GLMs for subgroups of observations. The manuscript’s aim is twofold: (1) in order to deal with (quasi) separation problems leading to convergence problems in the numerical solution of Maximum Likelihood (ML) estimation in MOB, we propose a methodological extension of GLM-based recursive partitioning from standard ML estimation to bias-reduced (BR) estimation; and (2) we apply the BR-based GLM trees to basketball analytics. The results show models very easy to interpret that can provide useful support to coaching staff’s decisions.

Keywords: Sport analytics; Basketball; Success drivers; MOB; Bias reduction GLM; Data mining (search for similar items in EconPapers)
Date: 2023
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DOI: 10.1007/s10182-022-00456-6

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