Signal Processing 2020 DOI: 10.1016/j.sigpro.2019.107237 View full text
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Anupon Pruttiakaravanich, Jitkomut Songsiri

Abstract: Path analysis is a model class of structural equation modeling (SEM), which it describes causal relations among measured variables in the form of a multiple linear regression. This paper presents two estimation formulations, one each for confirmatory and exploratory SEM, where a zero pattern of the estimated path coefficient matrix can explain a causality structure of the variables. The original nonlinear equality constraints of the model parameters were relaxed to an inequality, allowing the transformation o…

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