Dear all, Can anyone here explain in detail tge concept of truth value-stregnth -confidence-countWhat is the concept of attention value.Explain with example please
Sent from my Samsung Galaxy smartphone. -------- Original message --------From: 'Nil Geisweiller' via opencog <opencog@googlegroups.com> Date: 5/2/17 10:45 AM (GMT+05:00) To: opencog@googlegroups.com Cc: gross...@gmail.com, Linas Vepstas <linasveps...@gmail.com> Subject: Re: [opencog-dev] Pros and cons On 04/28/2017 06:11 PM, Ben Goertzel wrote: > to implement new inference rules, you code new ImplicationLinks, > wrapped with LambdaLinks etc. ... Some precision. You can encode rules as data using for instance ImplicationLinks, then use PLN or any custom deduction, modus-ponens, etc rules defined as BindLinks to reason on these. Or directly encode your rules as BindLinks. The following example demonstrates the 2 ways https://github.com/opencog/atomspace/tree/master/examples/rule-engine/frog Nil > > new inference rules coded as such Atoms, can be executed perfectly > well by the URE rule engine... > > quantitative truth value formulas associated with new inference rules > can be coded in Scheme or python and wrapped in GroundedSchemaNodes > > easy peasy... > > > On Fri, Apr 28, 2017 at 11:09 PM, Daniel Gross <gross...@gmail.com> wrote: >> Hi Linas, >> >> Thank you. >> >> What is the mechanism to endow new language elements in atomese with an >> (custom) inference semantics. >> >> thank you, >> >> Daniel >> >> >> >> >> On Friday, 28 April 2017 17:47:16 UTC+3, linas wrote: >>> >>> >>> >>> On Wed, Apr 26, 2017 at 11:43 PM, Daniel Gross <gros...@gmail.com> wrote: >>>> >>>> Hi Linas, >>>> >>>> Yes your intuition is right. >>>> >>>> Thank you for your clarification. >>>> >>>> What is the core meta-language that is OpenCog into which PLN can be >>>> loaded. >>> >>> >>> Its the system of typed atoms and values values. >>> http://wiki.opencog.org/w/Atom http://wiki.opencog.org/w/Value >>> >>> You can add new types if you wish (you can remove them too, but stuff will >>> then likely break) with the new types defining teh new kinds of knowledge >>> you want to represent. >>> >>> There is a rich set of pre-defined types, which encode pretty much >>> everything that is generically useful, across multiple projects that people >>> have done. We call this "language" "atomese" >>> http://wiki.opencog.org/w/Atomese >>> >>> We've gone through a lot of different atom types, by trial and error; the >>> current ones are the ones that seem to work OK. There are over a hundred of >>> them. >>> >>> PLN uses only about a dozen of them, such as ImplicationLink, >>> InheritanceLink, and most importantly, EvaluationLink. >>> >>> Using EvaluationLink is kind-of-like inventing a new type. So most users >>> are told to use that, and nothing else. Some types seem to deserve a >>> short-hand notation, and so these get hard-coded for various reasons >>> (usually for performance reasons). >>> >>> --linas >>>> >>>> >>>> Daniel >>>> >>>> >>>> >>>> On Thursday, 27 April 2017 05:42:02 UTC+3, linas wrote: >>>>> >>>>> >>>>> >>>>> On Wed, Apr 26, 2017 at 9:13 PM, Daniel Gross <gros...@gmail.com> wrote: >>>>>> >>>>>> Hi Linas, >>>>>> >>>>>> I guess it would be good to differentiate between the KR architecture >>>>>> and the language. Would be great if there exists some kind of comparison >>>>>> of >>>>>> the open cog language to other comparable KR languages. >>>>> >>>>> >>>>> I don't quite understand. However, if I were to take a guess at the >>>>> intent. >>>>> >>>>> opencog allows you to design your own KR language; it doesn't much care, >>>>> it provides a set of tools. These include a data store, a rule engine with >>>>> backward and forward chainers, a pattern matcher, a pattern miner. >>>>> >>>>> Opencog does come with a default "KR language", PLN -- its described in >>>>> multiple PLN books. But if you don't like PLN, you can create your own KR >>>>> language. All the parts are there. >>>>> >>>>> The "cognitive architecture" is something you'd layer on top of the KR >>>>> language (and/or on top of various neural nets, and/or on top of various >>>>> learning algorithms, etc). >>>>> >>>>> opencog does not have a particularly firm "architecture" per se; we >>>>> experiment and try to make things work, and learn from that. Ben would say >>>>> that there is an architecture, it just hasn't been implemented yet. >>>>> There's >>>>> a lot to do, we're only getting started. >>>>> >>>>> --linas >>>>>> >>>>>> >>>>>> Then there are cognitive architectures, which can be compared. I think >>>>>> Ben has a number of architectures compared in his book. >>>>>> >>>>>> i guess one then needs a kind of "composite" -- what an >>>>>> architecture+language can do, since an architecture likely takes >>>>>> advantage >>>>>> of the language features. >>>>>> >>>>>> Daniel >>>>>> >>>>>> On Wednesday, 26 April 2017 21:54:11 UTC+3, linas wrote: >>>>>>> >>>>>>> >>>>>>> >>>>>>> On Wed, Apr 26, 2017 at 1:41 PM, Nageen Naeem <nage...@gmail.com> >>>>>>> wrote: >>>>>>>> >>>>>>>> OpenCog didn't shift to java from c++? >>>>>>> >>>>>>> >>>>>>> You are welcome to study https://github.com/opencog for the source >>>>>>> languages used. >>>>>>> >>>>>>>> >>>>>>>> Thanks for defining pros and cons if there is any paper on comparison >>>>>>>> with other architecture kindly recommend me. >>>>>>> >>>>>>> >>>>>>> Ben has written multiple books on the archtiecture in general. The >>>>>>> wiki describes particular choices. >>>>>>> >>>>>>> I am not aware of any other (knowledge-representation) architectures >>>>>>> that can do what the atomspace can do. So I'm not sure what you want to >>>>>>> compare against. Triplestore? various actionscripts? Prolog? >>>>>>> >>>>>>> --linas >>>>>>> >>>>>>>> >>>>>>>> On Wednesday, April 26, 2017 at 9:36:04 PM UTC+5, Ben Goertzel wrote: >>>>>>>>> >>>>>>>>> OpenCog did not shift from Java to C++, it was always C++ >>>>>>>>> >>>>>>>>> The advantage of Atomspace is that it allows fine-grained semantic >>>>>>>>> representations of all forms of knowledge in a common framework. >>>>>>>>> The >>>>>>>>> disadvantage is, this makes things complicated. The other >>>>>>>>> advantage >>>>>>>>> is, this fine-grained representation makes data amenable to multiple >>>>>>>>> AI algorithms, including ones that can work together synergetically >>>>>>>>> >>>>>>>>> ben >>>>>>>>> >>>>>>>>> On Wed, Apr 26, 2017 at 12:10 PM, Nageen Naeem <nage...@gmail.com> >>>>>>>>> wrote: >>>>>>>>>> Hey, >>>>>>>>>> I'm searching for pros and cons for using atomspace for knowledge >>>>>>>>>> representation but didn't get any full-fledged answer related to >>>>>>>>>> it. what >>>>>>>>>> are the pros and cons of using atomspace and why OpenCog shifted >>>>>>>>>> to java >>>>>>>>>> from c++ what are reasons behind it? >>>>>>>>>> >>>>>>>>>> -- >>>>>>>>>> You received this message because you are subscribed to the Google >>>>>>>>>> Groups >>>>>>>>>> "opencog" group. >>>>>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>>>>> send an >>>>>>>>>> email to opencog+u...@googlegroups.com. >>>>>>>>>> To post to this group, send email to ope...@googlegroups.com. >>>>>>>>>> Visit this group at https://groups.google.com/group/opencog. >>>>>>>>>> To view this discussion on the web visit >>>>>>>>>> >>>>>>>>>> https://groups.google.com/d/msgid/opencog/bd2cd2ad-b15c-4a2e-a962-328a3197c0d7%40googlegroups.com. >>>>>>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> -- >>>>>>>>> Ben Goertzel, PhD >>>>>>>>> http://goertzel.org >>>>>>>>> >>>>>>>>> "I am God! I am nothing, I'm play, I am freedom, I am life. I am the >>>>>>>>> boundary, I am the peak." -- Alexander Scriabin >>>>>>>> >>>>>>>> -- >>>>>>>> You received this message because you are subscribed to the Google >>>>>>>> Groups "opencog" group. >>>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>>> send an email to opencog+u...@googlegroups.com. >>>>>>>> To post to this group, send email to ope...@googlegroups.com. >>>>>>>> Visit this group at https://groups.google.com/group/opencog. >>>>>>>> To view this discussion on the web visit >>>>>>>> https://groups.google.com/d/msgid/opencog/d6da6287-a623-47eb-b3c3-6444bce465c0%40googlegroups.com. >>>>>>>> >>>>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>>> >>>>>>> >>>>> >>> >> -- >> You received this message because you are subscribed to the Google Groups >> "opencog" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to opencog+unsubscr...@googlegroups.com. >> To post to this group, send email to opencog@googlegroups.com. >> Visit this group at https://groups.google.com/group/opencog. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/opencog/fe19fdfd-8070-40b2-a40a-82a9865aad84%40googlegroups.com. >> >> For more options, visit https://groups.google.com/d/optout. > > > -- You received this message because you are subscribed to a topic in the Google Groups "opencog" group. 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