نتایج جستجو برای: multivariate granger causality analysismgca

تعداد نتایج: 168566  

2011
Shuixia Guo Christophe Ladroue Jianfeng Feng

A question of great interest in systems biology is how to uncover complex network structures from experimental data[1, 3, 18, 38, 55]. With the rapid progress of experimental techniques, a crucial task is to develop methodologies that are both statistically sound and computationally feasible for analysing increasingly large datasets and reliably inferring biological interactions from them [16, ...

Journal: :Bulletin of informatics and cybernetics 2002

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2009
Dmitry A Smirnov Igor I Mokhov

Quantitative characterization of interaction between processes from time series is often required in different fields of natural science including geophysics and biophysics. Typically, one estimates "short-term" influences, e.g., the widely used Granger causality is defined via one-step-ahead predictions. Such an approach does not reveal how strongly the "long-term" behavior of one process unde...

Journal: :Human brain mapping 2009
Fa-Hsuan Lin Keiko Hara Victor Solo Mark Vangel John W Belliveau Steven M Stufflebeam Matti S Hämäläinen

A persistent problem in developing plausible neurophysiological models of perception, cognition, and action is the difficulty of characterizing the interactions between different neural systems. Previous studies have approached this problem by estimating causal influences across brain areas activated during cognitive processing using structural equation modeling (SEM) and, more recently, with G...

2015
Wendy N. Cowan Tsangyao Chang

This study reexamines the causal link between electricity consumption, economic growth and CO2 emissions in the BRICS countries (i.e., Brazil, Russia, India, China, and South Africa) for the period 1990– 2010, using panel causality analysis, accounting for dependency and heterogeneity across countries. Regarding the electricity–GDP nexus, the empirical results support evidence on the feedback h...

Journal: :Journal of neuroscience methods 2012
Linda Sommerlade Marco Thiel Bettina Platt Andrea Plano Gernot Riedel Celso Grebogi Jens Timmer Björn Schelter

Inferring Granger-causal interactions between processes promises deeper insights into mechanisms underlying network phenomena, e.g. in the neurosciences where the level of connectivity in neural networks is of particular interest. Renormalized partial directed coherence has been introduced as a means to investigate Granger causality in such multivariate systems. A major challenge in estimating ...

Journal: :Journal of Applied Statistics 2015

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