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	param	t-stat
$ω$	1.5579	7.76
$α$	0.2277	4.49
$β$	0.4704	7.50
$γ_{1}$	0.2080	3.29
$γ_{2}$	-0.2755	-2.87
$γ_{3}$	0.1007	1.60
$γ_{4}$	-0.0504	-1.16

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Cheetah Mobile Inc Zero Slope Spline-GARCH Volatility Analysis

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