[erlang-questions] Erlang and artificial intelligence: new article on trapexit

[Corrado Santoro]

Hi Ludovic,

Ludovic Coquelle wrote:
> I have yet to read the ref you gave, but could you quickly explain 
> what's the main difference with an inference engine like prolog? (or 
> erlang implementation erlog 
> <http://www.trapexit.org/forum/viewtopic.php?t=6126&sid=e8ec07430fccd60a9ec4a77900409853>). 
AFAIK, in Prolog you don't have an explicit knowledge base; you write
your initial facts and your rules by means of "implications".

When you issue a query, the implications are processed using backtracing
and the derived knowledge is obtained (returned, not stored in any place).

Conversely, in a rule production system, rules are processed not during
queries but each time you assert or retract a fact. So you have a
knowledge base which explicitly contains (and stores) all your
knowledge, basic and derived. Therefore, querying does not imply rule
processing but only "taking a look" at the KB.


> I'm hoping your inference engine can use the concurrency :)
See my answer to Mike French on this issue.

All the best,
--Corrado

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