YeGoblynQueenne 9 days ago

"Learning" in CDCL is a misnomer: the learning process is Resolution and it's deductive (reasoning) not inductive (learning).

2
thesz 7 days ago

You invented a new kind of learning that somewhat contradicts usual definition [1] [2].

  [1] https://www.britannica.com/dictionary/learning
  [2] https://en.wikipedia.org/wiki/Learning
"Learning" in CDCL is perfectly in line of "gaining knowledge."

joe_the_user 9 days ago

I'm pretty sure most "industrial scale" SAT solvers involve both deduction and heuristics to decide which deductions to make and which to keep. At a certain scale, the heuristics have to be adaptive and then you have "induction".

YeGoblynQueenne 9 days ago

I don't agree. The derivation of new clauses by Resolution is well understood as deductive and the choice of what clauses to keep doesn't change that.

Resolution can be used inductively, and also for abduction, but that's going into the weeds a bit- it's the subject of my PhD thesis. Let me know if you're in the mood for a proper diatribe :)

thesz 7 days ago

Take a look at Satisfaction-Driven Clause Learning [1].

[1] https://www.cs.cmu.edu/~mheule/publications/prencode.pdf

joe_the_user 7 days ago

I'd love a diatribe if you're still following this post.

EarlKing 6 days ago

As would I.

You know, this seems like yet another reason to allow HN users to direct message each other, or at least receive reply notifications. Dang, why can't we have nice things?

YeGoblynQueenne 2 days ago

Oh, hi guys. Sorry just saw this.

Oh gosh I gotta do some work today, so no time to write what I wanted. Maybe watch this space? I'll try to make some time later today.