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math.ST2023
A test for counting sequences of integer-valued autoregressive models
Yuichi Goto, Kou Fujimori
The integer autoregressive (INAR) model is one of the most commonly used models in nonnegative integer-valued time series analysis and is a counterpart to the traditional autoregre…
math.ST2023
Residual spectrum: Brain functional connectivity detection beyond coherence
Yuichi Goto, Xuze Zhang, Benjamin Kedem +1
Coherence is a widely used measure to assess linear relationships between time series. However, it fails to capture nonlinear dependencies. To overcome this limitation, this paper…