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thomblake comments on A problem with Timeless Decision Theory (TDT) - Less Wrong
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Hmm... Pearl uses a lot of diagrams but they all seem pretty ad-hoc. Just the sorts of arrows and dots and things that you'd use to represent any graph (in the mathematics sense). Should I infer from this description that the answer is, "No, there isn't a standard"?
I was picturing something like a legend that would tell someone, "Use a dashed line for a causal boundary, and a red dotted line to represent a logical inference, and a pink squirrel to represent postmodernism"
Um... I'm not sure there's much I can say to that beyond "Read Probabilistic Reasoning in Intelligent Systems, or Causality".
Pearl's system is not ad-hoc. It is very not ad-hoc. It has a metric fuckload of math backing up the simple rules. But Pearl's system does not include logical uncertainty. I'm trying to put logical uncertainty into it, while obeying the rules. This is a work in progress.
Thomblake's observation may be that while Pearl's system is extremely rigorous the diagrams used do not give an authoritative standard style for diagram drawing.
That's correct - I was looking for a standard style for diagram drawing.
I'd just like to register a general approval of specifying that one's imaginary units are metric.
FWIW