Re: [FRIAM] Agents, stocks, and flows

2009-08-29 Thread Douglas Roberts
Shoot. That last one wasn't meant for public consumption. Sorry for sounding like such a poopy-head. On Sat, Aug 29, 2009 at 11:12 AM, Douglas Roberts wrote: > Steve, > > I confess that I enjoy rubbing their noses in their speculative > circle-jerks, now and then. > > Another topic: do you know

Re: [FRIAM] Agents, stocks, and flows

2009-08-29 Thread Russ Abbott
> Clark University (nthomp...@clarku.edu) > http://home.earthlink.net/~nickthompson/naturaldesigns/<http://home.earthlink.net/%7Enickthompson/naturaldesigns/> > > > > > > - Original Message - > *From:* Steve Smith > *To: *The Friday Morning Applied Complexit

Re: [FRIAM] Agents, stocks, and flows

2009-08-29 Thread Nicholas Thompson
/ - Original Message - From: Steve Smith To: The Friday Morning Applied Complexity Coffee Group Sent: 8/29/2009 11:16:14 AM Subject: Re: [FRIAM] Agents, stocks, and flows Doug - I think you suggested specifying and designing a system from requirements and something like first principle

Re: [FRIAM] Agents, stocks, and flows

2009-08-29 Thread Douglas Roberts
That sounds really good. When would be a good time? On Sat, Aug 29, 2009 at 11:14 AM, Steve Smith wrote: > > > I've got an ice-chest full of beers and melting ice if you have time to tip > one later today. > > - Steve > > -- Doug Roberts drobe...@rti.org d...@parrot-farm.net 505-455-7333 - Offi

Re: [FRIAM] Agents, stocks, and flows

2009-08-29 Thread Steve Smith
Doug - I think you suggested specifying and designing a system from requirements and something like first principles (which I think is a really good way to approach actually solving the problem). I suggested a review of the *real world* (not computer systems and models) for networks of entit

Re: [FRIAM] Agents, stocks, and flows

2009-08-29 Thread Douglas Roberts
Steve, I confess that I enjoy rubbing their noses in their speculative circle-jerks, now and then. Another topic: do you know Ed MacKerrow? --Doug On Sat, Aug 29, 2009 at 11:06 AM, Steve Smith wrote: > Doug - > > Suzanne and I just watched Paper Chase (1973) again and were treated to the > d

Re: [FRIAM] Agents, stocks, and flows

2009-08-29 Thread Steve Smith
Doug - Suzanne and I just watched Paper Chase (1973) again and were treated to the dry commentary of John Hausman as curmudgeonly professor Kingsfield.    Your comment reminded me of the equally dry delivery he gave in a TV commercial several years later for an investment house? where he utter

Re: [FRIAM] Agents, stocks, and flows

2009-08-29 Thread Douglas Roberts
On Sat, Aug 29, 2009 at 10:53 AM, Steve Smith wrote: > > > I wonder if the combined genius, memory, attention, focus of this group can > come up with real-world systems which (obviously) seem to work this way > (require this level of abstraction/complexity to model). > > -Steve > > > I thought I

Re: [FRIAM] Agents, stocks, and flows

2009-08-29 Thread Steve Smith
Roger - I think this is a good analysis of Russ's idea/question/pursuit.   But/And that is what makes it an interesting pursuit.   Self-modifying code has always been a hairy-scary mess but/and we have slowly found ways to tame it enough to make it useful in various situations. Two platitudes

Re: [FRIAM] Agents, stocks, and flows

2009-08-28 Thread Douglas Roberts
Has anybody just tried to design this application the old-fashioned way; i.e., develop a set of requirements that - define the interactions between the components of the system, - identify (clearly, no vagueness allowed) the desired results from running the simulation, - identify (clea

Re: [FRIAM] Agents, stocks, and flows

2009-08-28 Thread russell standish
On Fri, Aug 28, 2009 at 12:46:26PM -0500, Roger Critchlow wrote: > I don't think you'll find this because it implies programming a higher > purpose and allowing the agents to jump the rails, as it were, and start > negotiating their way through the combinatorics of alternative networks. > Similarly

Re: [FRIAM] Agents, stocks, and flows

2009-08-28 Thread Marcus G. Daniels
Roger Critchlow wrote: It's not obvious how to program the same capabilities without the teaching the agents how to apply the same common sense and expert senses which the programmer uses to frame a fixed solution space. Framing a fixed solution space is tricky! Take a data set with lots of po

Re: [FRIAM] Agents, stocks, and flows

2009-08-28 Thread Roger Critchlow
I don't think you'll find this because it implies programming a higher purpose and allowing the agents to jump the rails, as it were, and start negotiating their way through the combinatorics of alternative networks. Similarly, you won't find models in which agents invent new inputs to monitor, new

Re: [FRIAM] Agents, stocks, and flows

2009-08-28 Thread glen e. p. ropella
Thus spake Russ Abbott circa 09-08-28 07:26 AM: > My question was simpler than that. Is there work on stocks and flows models > in which the network structure is not static? I suspect you won't find a toolkit that does this because the diagrams are (usually?) animated via a system of differential

Re: [FRIAM] Agents, stocks, and flows

2009-08-28 Thread Stephen Guerin
erstanding-complex-syst...@googlegroups.com ; Lowe,Donald Sent: 8/28/2009 5:49:40 AM Subject: Re: [FRIAM] Agents, stocks, and flows In a discussion with a colleague today we talked briefly about stocks and flows networks. It struck me that a stocks and flows model is a limited sort of service-orient

Re: [FRIAM] Agents, stocks, and flows

2009-08-28 Thread Russ Abbott
or of Psychology and Ethology, >>> Clark University (nthomp...@clarku.edu) >>> http://home.earthlink.net/~nickthompson/naturaldesigns/<http://home.earthlink.net/%7Enickthompson/naturaldesigns/> >>> >>> >>> >>> >>> >>> ---

Re: [FRIAM] Agents, stocks, and flows

2009-08-28 Thread Douglas Roberts
tp://home.earthlink.net/~nickthompson/naturaldesigns/<http://home.earthlink.net/%7Enickthompson/naturaldesigns/> >> >> >> >> >> >> ----- Original Message - >> *From:* Russ Abbott >> *To: *The Friday Morning Applied Complexity Coffee Group &

Re: [FRIAM] Agents, stocks, and flows

2009-08-28 Thread Russ Abbott
> - Original Message - > *From:* Russ Abbott > *To: *The Friday Morning Applied Complexity Coffee Group > *Cc: *Antony W. Iorio ; e.le...@adfa.edu.au; > understanding-complex-syst...@googlegroups.com; > Lowe,Donald > *Sent:* 8/28/2009 5:49:40 AM > *Subject:* Re: [FRIAM

Re: [FRIAM] Agents, stocks, and flows

2009-08-28 Thread Nicholas Thompson
adfa.edu.au; understanding-complex-syst...@googlegroups.com; Lowe,Donald Sent: 8/28/2009 5:49:40 AM Subject: Re: [FRIAM] Agents, stocks, and flows In a discussion with a colleague today we talked briefly about stocks and flows networks. It struck me that a stocks and flows model is a limited sort of service-o

Re: [FRIAM] Agents, stocks, and flows

2009-08-28 Thread Russ Abbott
In a discussion with a colleague today we talked briefly about stocks and flows networks. It struck me that a stocks and flows model is a limited sort of service-oriented agent-based model. In a service-oriented agent-based model, agents accept inputs and produce outputs -- the simplest version be