Closed e-pet closed 2 years ago
ok, i rewrote the sec on p371 as follows
In \citep{Herzog2019} they extend IPLS to belief propagation
in Forney factor graphs (\cref{sec:FFG}),
which enables the method to be applied to a large class of graphical models
beyond \SSMs. In particular, they give a general linearization formulation
(including explicit message update rules) for nonlinear approximate Gaussian BP
(\cref{sec:gaussBP})
where the linearization can be Jacobian-based (``EKF-style''), statistical
(moment matching / quadrature filtering / sigma points), or anything else.
They also show how any such linearization method can benefit from iterations.
and on p392 as follows
To perform message passing in models with non-linear (but Gaussian) potentials,
we can generalize the extended Kalman filter
techniques from \cref{sec:EKF}
and the moment matching techniques (based on quadrature / sigma points)
from \cref{sec:GGF,sec:statlin}
from chains to general factor graphs
(see e.g., \citep{SigmaBP,Petersen2018,Herzog2019}).
is this correct?
Yes, that looks perfect! Thanks a lot. 😊
From: Kevin P Murphy @.> Sent: 8. august 2022 04:09 To: probml/pml2-book @.> Cc: e-pet @.>; Author @.> Subject: Re: [probml/pml2-book] Approximate nonlinear Gaussian BP (version Jul 29, 2022) (Issue #118)
ok, i rewrote the sec on p371 as follows
In \citep{Herzog2019} they extend IPLS to belief propagation
in Forney factor graphs (\cref{sec:FFG}),
which enables the method to be applied to a large class of graphical models
beyond \SSMs. In particular, they give a general linearization formulation
(including explicit message update rules) for nonlinear approximate Gaussian BP
(\cref{sec:gaussBP})
where the linearization can be Jacobian-based (``EKF-style''), statistical
(moment matching / quadrature filtering / sigma points), or anything else.
They also show how any such linearization method can benefit from iterations.
and on p392 as follows
To perform message passing in models with non-linear (but Gaussian) potentials,
we can generalize the extended Kalman filter
techniques from \cref{sec:EKF}
and the moment matching techniques (based on quadrature / sigma points)
from \cref{sec:GGF,sec:statlin}
from chains to general factor graphs
(see e.g., \citep{SigmaBP,Petersen2018,Herzog2019}).
is this correct?
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Thanks for creating this amazing resource! :-) I have some minor suggestions regarding the characterization of two papers I was involved in.
You currently write (p. 371, section 3.8.4 on Inference for state-space models / inference based on statistical linearization):
and (p. 392, section 3.9.2. on Inference for graphical models / Loopy BP / Gaussian BP):
These characterizations are not entirely precise.
Hope this helps and does not come across as picky / vain. :-)
Thanks again for your tremendous efforts!