The difference between NARS and PLN has much more to do with their different semantics, than with their different logical/algebraic formalism.
For example, according to the semantics of NARS, Bayes rule, with all of its variants, is deduction. Therefore it is impossible to use on induction/abduction/... Also, in NARS the higher-order inference rules are mostly isomorphic to first-order inference rules, in the sense that they use the same truth value function, and there is one-to-one mappings between them --- see http://nars.wang.googlepages.com/wang.abduction.pdf for people who don't have the book. Pei On 10/21/07, Benjamin Goertzel <[EMAIL PROTECTED]> wrote: > > > About NARS... Nesov/Wang dialogued: > > > > > > > > > Why do you need so many rules? > > > > > > I didn't expect so many rules myself at the beginning. I add new rules > > > only when the existing ones are not enough for a situation. It will be > > > great if someone can find a simpler design. > > > > > > I feel that some of complexity comes from modeling of natural language > statements. Do you agree? > > > I think the complexity comes from the particular logical/algebraic formalism > underlying NARS... > > In PLN, which is similar to NARS in some respects but with a probabilistic > foundation, there are fewer rules because the underlying algebra is more > powerful, allowing more cases in which rules may be derived from other > rules. E.g. in NARS, induction and abduction are primary rules, whereas in > PLN they are derived via combining Bayes rule with deduction in different > (simple) ways. And in NARS, higher-order inference rules are posited > separately than first-order inference rules, whereas in PLN most of the > higher-order rules are derived directly from corresponding first-order > rules. [Note that in PLN and NARS, the terms first-order and higher-order > have different meanings than the ones often seen. First order term logic > is the pure logic of inheritance with no explicit variables or quantifiers; > higher-order term logic introduced quantified variables.] > > -- Ben G > ________________________________ > This list is sponsored by AGIRI: http://www.agiri.org/email > To unsubscribe or change your options, please go to: > http://v2.listbox.com/member/?&; ----- This list is sponsored by AGIRI: http://www.agiri.org/email To unsubscribe or change your options, please go to: http://v2.listbox.com/member/?member_id=8660244&id_secret=56145391-2cb7f6
