Hi Nil, 

So here is the logic now that I'm using thus far for my project.  I'm using 
to files, one Scheme file to express most of the logic and one Python file 
because I find that Python is easier to use for communication with a soon 
to emerge JavaScript front-end. 

Also, I find Python easier to allow for undetermined number of entities in 
one statement and also an undetermined number of sub-statements.  
Ultimately, I want users to be able to make arbitrary statements on the 
front-end that then follow this sort of logic in which truth values are 
determined in a variant of a prediction market mechanism as in that Scheme 
file. 

Here's the Scheme file: 
https://github.com/CollectiWise/collectiwise/blob/master/collectiwise.scm  
(examples of how these functions are called are here: 
https://github.com/CollectiWise/collectiwise/blob/master/collectiWiseKB.scm)

And here's a Python wrapper with a bit of extra logic added as well: 
https://github.com/CollectiWise/collectiwise/blob/master/python/wrapper.py

Now to my question: 

I'm trying to generalize this logic so that a person on the frontend can 
make any sort of statement that is permissible in opencog.  I'm starting 
with general statements that have one simple truth value (for now I'm 
setting the secondary parameter always to 1 but that can be easily 
relaxed).  Next, I need to be able to make statements of the following 
kind, as an example:

There's five people: 
john =Concept john
mike =Concept mike
judy=Concept judy
anne=Concept Anne
george= Concept george

One of them will win some contest: Concept contest

Winner is:
george will-win (stv 0.1 1)
mike will win (stv 0.2 1)
john will win (stv 0.2 1)
judy will win (stv 0.1 1)
anne will win (stv 0.3 1)
george will win (stv 1-p(all-the-other-ones) 1)

How do I insure that there's a statement, like will win and 5 outcomes, the 
probabilities of which always add to 1, such that if one probability 
changes all others will automatically adjust? 

Also, do you think that there's a simpler way than the way that I have 
started to code for users to be able to make general statements with 
probabilities determined in a type of market?  

I know that these are a lot of questions and I apologize ahead of time! 

Thank you! 

Johannes



On Tuesday, December 11, 2018 at 7:28:45 AM UTC, Nil wrote:
>
> Hi Johannes, 
>
> On 12/10/18 6:48 PM, Johannes Castner wrote: 
> > ; all users have an account 
> > (EvaluationLink 
> >      account 
> >      (ListLink 
> >          User 
> >      ) 
> > ) 
>
> note that you don't need to wrap the argument with a ListLink if 
> there's only one, you might write 
>
> (EvaluationLink 
>       account 
>       User) 
>
> > How do I say that an account has points in it, that  can be updated and 
>
> Depends on what you mean "has points in it". `account` is a predicate 
> so it indeed can have stuff in it by using `EvaluationLink` as you did 
> with `User`, which says `User` is in `account`. If `account` where a 
> concept, then you could equivalently (or isomorphically equivalently) 
> write 
>
> (MemberLink 
>      User 
>      account) 
>
> > that a user has that account etc?  I'm sorry, I'm still rather new to 
> > Atomese and I've been trying to figure this out but I'm seriously stuck. 
> > Please help! 
>
> It's not clear to me what you want to express. If you write it in FOL 
> we'll definitely be able to translate it to Atomese. 
>
> Nil 
>

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