Relationship Between Granger Noncausality and Network Graph of State-Space Representations

被引:7
|
作者
Jozsa, Monika [1 ,2 ]
Petreczky, Mihaly [3 ]
Camlibel, M. Kanat [2 ]
机构
[1] Univ Lille, IMT Lille Douai, Unite Rech Informat Automat, F-59000 Lille, France
[2] Univ Groningen, Johann Bernoulli Inst Math & Comp Sci, NL-9700 AK Groningen, Netherlands
[3] Univ Lille, Ctr Rech Informat Signal & Automat Lille, CNRS, UMR 9189,Cent Lille,CRIStAL, F-59000 Lille, France
关键词
Interconnected systems; stochastic systems; system realization; MODEL-REDUCTION; TIME-SERIES; BAYES NETS; CAUSALITY; IDENTIFICATION; REALIZATIONS;
D O I
10.1109/TAC.2018.2832469
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
The goal of this paper is to explore the relationship between the network graph of a state-space representation of an observed process and the causal relations among the components of that process. We will show that the existence of a linear time-invariant state-space representation, with its network graph being the star graph, is equivalent to (conditional) Granger noncausal relations among the components of the output process. Granger non-causality is a statistical concept, which applies to arbitrary processes and does not depend on the representation of the process. That is, we relate intrinsic properties of a process with the network graph of its state-space representations.
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页码:912 / 927
页数:16
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