Search found 23 matches
- Thu Dec 07, 2006 3:58 pm
- Forum: SD Mailing List Archive
- Topic: QUERY Stock and flow diagrams of Senge Archetypes
- Replies: 6
- Views: 11058
QUERY Stock and flow diagrams of Senge Archetypes
Posted by George Richardson <gpr@albany.edu> Years ago, I assigned one of my doctoral seminars the task(s) of building formal models of all the archetypes in the Fifth Discipline and in the Pegasus publications by Dan Kim. It was a revealing exercise. Some are trivial, e.g., growth to a limit or esc...
- Tue Feb 17, 2004 5:14 pm
- Forum: SD Mailing List Archive
- Topic: Tenure-Track Position in System Dynamics at University at Al
- Replies: 0
- Views: 2863
Tenure-Track Position in System Dynamics at University at Al
ANNOUNCE: Search for Tenure-Track Position in System Dynamics at University at Albany The System Dynamics Group at the University at Albany in conjunction with the Department of Public Administration and Policy is pleased to announce a search for a tenure track faculty member to teach and do researc...
- Sun May 04, 2003 4:57 pm
- Forum: SD Mailing List Archive
- Topic: Can system dynamics models "learn"
- Replies: 46
- Views: 33898
Can system dynamics models "learn"
I must admit to more than a little pique at this ongoing discussion. Sorry about that; please forgive what follows if it bugs you. It is probably far too self-centered and impolite for me to point out that the only example (to my knowledge) of a system dynamics model put forward to address the quest...
- Sun May 04, 2003 4:05 pm
- Forum: SD Mailing List Archive
- Topic: Communicating System Dynamics to Others
- Replies: 16
- Views: 11990
Communicating System Dynamics to Others
On Thursday, May 1, 2003, at 07:55 AM, ALLOCAR SRASBOURG wrote: > As a businnesman I have many other friends in business and I have too > a board with administrators and family stock holders. While being very > interested in SD, I have not the > intention to talk to any of these people about SD. > >...
- Sat Apr 26, 2003 10:57 am
- Forum: SD Mailing List Archive
- Topic: Can system dynamics models "learn"
- Replies: 46
- Views: 33898
Can system dynamics models "learn"
On Friday, April 25, 2003, at 05:05 AM, Finn Jackson wrote: > For a model to truly "learn" it would have to be able to rewrite its > own > equations. This is the prevailing wisdom. However, I do not think it is an adequate answer to the question of whether models can learn. For example, a ...
- Tue Mar 18, 2003 12:20 pm
- Forum: SD Mailing List Archive
- Topic: Simulation Model Interchange Language
- Replies: 13
- Views: 16607
Simulation Model Interchange Language
On Sunday, March 2, 2003, at 03:49 PM, Jim Hines wrote: > (1) Jim Thompsons most important question is whether the users can > offer any kind of incentive to vendors for incorporating the ability to > export and import SMILE files. Nothing very good comes to my mind, > which is why its such a dandy ...
- Mon Feb 17, 2003 8:22 pm
- Forum: SD Mailing List Archive
- Topic: HICSS37 Call for Papers
- Replies: 0
- Views: 2784
HICSS37 Call for Papers
Modeling Nonlinear Natural and Human Systems Minitrack at the 37th Hawaiian International Conference on System Sciences January 5 to 8, 2004 Waikoloa Hitlton, The Big Island of Hawaii Call for PapersThis minitrack is a premier presentation forum for the latest ideas and results in the areas of agent...
- Fri Aug 09, 2002 8:16 am
- Forum: SD Mailing List Archive
- Topic: Reflections on Barry on the HPS website
- Replies: 0
- Views: 2945
Reflections on Barry on the HPS website
The loss of Barry Richmond has affected us all and will continue to be felt for a long time. To help us all help each other through this sadness and celebrate Barrys life and contributions, High Performance Systems has put up a spot on their web site http://www.hps-inc.com for people to write reflec...
- Thu May 09, 2002 2:27 pm
- Forum: SD Mailing List Archive
- Topic: HICSS Call for papers
- Replies: 1
- Views: 3144
HICSS Call for papers
2nd Call For Papers for Modeling Nonlinear Natural and Human Systems Minitrack Part of the Decision Technologies in Management Track At the Thirty-sixth Annual HAWAII INTERNATIONAL CONFERENCE ON SYSTEM SCIENCES On the Big Island of Hawaii January 6 - 9, 2003 Additional detail on the web site: http:/...
- Mon May 06, 2002 7:40 am
- Forum: SD Mailing List Archive
- Topic: Beer/Wine Game
- Replies: 6
- Views: 10843
Beer/Wine Game
On Thursday, May 2, 2002, at 05:41 AM, Niall Palfreyman wrote: > the final debriefing discussion > took about 30 minutes. Theres a lot to talk about and learn about in a debrief of the beer game. It commonly takes about 90 minutes. The System Dynamics Society has a video tape, I believe, of John Ste...
- Thu Apr 11, 2002 10:04 am
- Forum: SD Mailing List Archive
- Topic: Systems modeling, puzzles and Taxonomy
- Replies: 1
- Views: 2808
Systems modeling, puzzles and Taxonomy
On Wednesday, April 10, 2002, at 01:41 PM, Beck, Peter [AMSTA-AR-FSF-X] wrote: > My question to the list is do system/SD models have this type of diversity > or do they all fall into one class, [...] Well, first and foremost, theyre all about dynamics, so I guess thats one class of system. But there...
- Thu Mar 21, 2002 9:41 pm
- Forum: SD Mailing List Archive
- Topic: SD Models from Written Text
- Replies: 30
- Views: 28579
SD Models from Written Text
On Wednesday, March 20, 2002, at 02:07 PM, sheldon friedman wrote: > The > extraction of knowledge for any computer program or the creation of a > computer program is still biased by what the programmer perceives as > correct. Any progam that we use will contain the bias of the programmer > or that ...
- Thu Mar 21, 2002 9:41 pm
- Forum: SD Mailing List Archive
- Topic: SD Models from Written Text
- Replies: 30
- Views: 28579
SD Models from Written Text
[Hosts Note: This message is being resent as it showed up blank before] On Wednesday, March 20, 2002, at 02:07 PM, sheldon friedman wrote: > The > extraction of knowledge for any computer program or the creation of a > computer program is still biased by what the programmer perceives as > correct. A...
- Wed Mar 13, 2002 11:04 pm
- Forum: SD Mailing List Archive
- Topic: SD Models from Written Text
- Replies: 30
- Views: 28579
SD Models from Written Text
On Wednesday, February 27, 2002, at 10:38 AM, jnoble1@mmm.com wrote: > I would like to pose the following question to the SD list. What > research as > been done in formal heuristics/methodologies/techniques for extracting, > from a > system or problem domains written textual descriptions, system va...
- Wed Mar 13, 2002 8:04 am
- Forum: SD Mailing List Archive
- Topic: SD Models from Written Text
- Replies: 30
- Views: 28579
SD Models from Written Text
On Friday, March 8, 2002, at 02:46 AM, Pieter van der Hijden wrote: > If we could agree on some special codes to insert in our texts and have > the discipline to apply them, intelligent querying and searching of our > texts will be possible. Pieters description sounds interesting. Id suggest Pieter,...
- Tue Nov 13, 2001 2:38 pm
- Forum: SD Mailing List Archive
- Topic: Attractiveness Multiplier
- Replies: 12
- Views: 33285
Attractiveness Multiplier
>As Bill Braun pointed out, one problem with this formulation is the more >attributes you add to the attractiveness function, the more volatile >it becomes. Thats probably true if one thinks about the equation in isolation, but very likely to be false when all the variables are interacting together ...
- Mon Sep 10, 2001 12:39 pm
- Forum: SD Mailing List Archive
- Topic: System dynamics in government
- Replies: 0
- Views: 5400
System dynamics in government
Id like to compile a list of the uses of system dynamics in government, including agencies that use it regularly, individuals to contact, important studies (who did them and for whom), and even "failures." Im after uses IN [by, for] government, not studies ABOUT government or economics or ...
- Tue Jul 31, 2001 4:12 pm
- Forum: SD Mailing List Archive
- Topic: Thoughts for future conferences
- Replies: 5
- Views: 5797
Thoughts for future conferences
Kim wrote: >The idea was simple - run a two-part, overlapping conference, e.g. >*** Day 1 primarily for academics (but open to any practitioners with an >interest in going deep) >*** Day 4 primarily for practitioners (but open to any academics with a keen >interest in application) >*** substantial o...
- Tue Jul 31, 2001 4:01 pm
- Forum: SD Mailing List Archive
- Topic: The order of a system
- Replies: 16
- Views: 10820
The order of a system
People wrote: >Definition: The order of a system is the number of stocks that are >connected to flows, _minus_ the number of stock pairs which are >connected by conserved flows. > >I guess I do still have one issue remaining: What about a system of >three stocks A, B and C, with a conserved flow fro...
- Fri May 18, 2001 10:49 am
- Forum: SD Mailing List Archive
- Topic: David Andersen - Distinguished Service Professor
- Replies: 0
- Views: 3716
David Andersen - Distinguished Service Professor
At its recent meeting the Board of Trustees of the State University of New York voted to promote David Andersen to the rank of Distinguished Service Professor. Promotion to the rank of Distinguished Professor is the highest honor a professor in the SUNY system can receive. The award recognizes David...
- Mon Apr 30, 2001 10:33 am
- Forum: SD Mailing List Archive
- Topic: Fast demonstrations of complex behaviour
- Replies: 14
- Views: 18673
Fast demonstrations of complex behaviour
>I wrote: > >> ... I cant see what this teaches me about complex systems... > >And Niall wrote: ...My first reaction was: "What a silly question - >doesnt the man know _anything_ about complexity?" Then I started trying >to think of a good response, and found to my dismay that I couldnt. T...
- Tue Apr 24, 2001 1:46 pm
- Forum: SD Mailing List Archive
- Topic: Fast demonstrations of complex behaviour
- Replies: 14
- Views: 18673
Fast demonstrations of complex behaviour
Concerning the group milling around exercise in which everyone tries to stay equidistant from two people that individual privately selected: Ive done this several times, and thought about (but not for very long), and I cant see what this teaches me about complex systems. Could someone enlighten me? ...
- Tue Mar 13, 2001 1:59 pm
- Forum: SD Mailing List Archive
- Topic: Hawaii conference on systems sciences
- Replies: 0
- Views: 2845
Hawaii conference on systems sciences
This conference, held in January every year ("off-season" to our usual summer conference), is becoming very interesting to system dynamicists. Enjoy -- ...George Call For Papers for MODELING NONLINEAR NATURAL AND HUMAN SYSTEMS MINITRACK (Formerly Agent-Based and System Dynamics Minitrack) ...