Lifted Probabilistic Inference: An MCMC Perspective
Lifted Probabilistic Inference: An MCMC Perspective
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提升概率推理:MCMC 视角
DOI:
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发表时间:
2012
期刊:
影响因子:
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通讯作者:
Mathias Niepert
中科院分区:
文献类型:
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作者:
Mathias Niepert
The general consensus seems to be that lifted
inference is concerned with exploiting model
symmetries and grouping indistinguishable
objects at inference time. Since first-order
probabilistic formalisms are essentially tem-
plate languages providing a more compact
representation of a corresponding ground
model, lifted inference tends to work especially well in these models. We show that the
notion of indistinguishability manifests itself
on several dferent levels {the level of constants, the level of ground atoms (variables),
the level of formulas (features), and the level
of assignments (possible worlds). We discuss
existing work in the MCMC literature on ex-
ploiting symmetries on the level of variable
assignments and relate it to novel results in
lifted MCMC.