i

RMSEs for SV with sparse grid integration

RMSEs for extended Kalman filter

Filtering,

ht|t

Smoothing,

ht|T

Prediction,

ht+1|t

Filtering,

ht|t

Smoothing,

ht|T

Prediction,

ht+1|t

hi

1

2.576

2.436

2.660

2.711

2.652

2.754

2

2.583

2.442

2.687

2.691

2.644

2.751