simulation@uflorida.cis.ufl.edu (Moderator: Paul Fishwick) (02/08/90)
Volume: 13, Issue: 10, Wed Feb 7 11:42:16 EST 1990 +----------------+ | TODAY'S TOPICS | +----------------+ (1) Holography: Information Search (2) Graphical Modeling & Stella (3) Request for Proposals: NIPS-90 (4) Re: Cellular Automata (5) Simulators in Education * Moderator: Paul Fishwick, Univ. of Florida * Send topical mail to: simulation@bikini.cis.ufl.edu OR post to comp.simulation via USENET * Archives available via FTP to bikini.cis.ufl.edu (128.227.224.1). Login as 'ftp', use your last name as the password, change directory to pub/simdigest. * Simulation Tools available by doing above and changing the directory to pub/simdigest/tools. ----------------------------------------------------------------------------- Path: lanl!jwk From: jwk@lanl.gov (John W. Keller) Newsgroups: comp.ai,comp.edu,comp.misc,comp.simulation Subject: HOLOGRAPHY: Information Search Date: 6 Feb 90 17:55:10 GMT Organization: Los Alamos National Laboratory I am looking for information or research on HOLOGRAPHY. At this point I have no specific direction or focus of interest so any information at all would be appreciated. Please e-mail me any information that you have and I will post or send a compilation to anyone who is interested. Thanks in advance. John Keller ****************************************************************** John Keller Staff Reasearch Assistant LANL, MS M997 Los Alamos National Laboratory PO Box 1663 Los Alamos, NM 87544 jwk@beta.lanl.gov ****************************************************************** As usual, my opinions are my own. *********************************** ------------------------------ Return-Path: <samuels@community-chest.mitre.org> To: simulation@bikini.cis.ufl.edu Cc: samuels@community-chest.mitre.org Subject: Re: SIMULATION DIGEST V13 N9 In-Reply-To: Your message of 05 Feb 90 15:49:33 +0000. <22099@uflorida.cis.ufl.EDU> Date: Tue, 06 Feb 90 14:37:45 -0500 From: Michael L. Samuels <samuels@community-chest.mitre.org> -------- Summary of message- >Jerry Pournelle has a small monthly column in Byte Magazine called >"Chaos Manor." Many of you have probably read it if you get Byte. In a >recent article he reviews a simulation game program called Sim City. I >will take a small excerpt from his c>olumn and then add my two cents >worth... >(excerpt...) >...One of the best things such programs could do would be to let the >students know what the inner relationships are. I don't know of any >programs that let you fiddle with the equations inside the model, but >I think that might be one heck of an educational tool....." --------- This is one of the big advantages of Stella for the Mac. You create models of systems using a palette of modeling tools - just like MacDraw. Tools include flows, stores, and convertors. Equations are automatically built as you draw the picture of the system. You then go into the equation window and examine the details of your picture. I have been using Stella to look at various forms of the logistic equation - partly to help me understand chaotic processes, and partly to examine different forms of the logistic. What I really like about Stella over a tool like SimCity is that I have a lot of control over the model's dynamics. I cannot create models as complex as SimCity, perhaps, but the real value of simulation exercises is in the building of the model - that's where you learn about the relationships among key variables. My only wish is that discrete-event simulations were as easy to construct! Michael Samuels The MITRE Corporation samuels@community-chest.mitre.org Mailstop Z676 (703) 883-7828 7525 Colshire Drive FAX: (703) 883-5519 McLean, VA 22102 ------------------------------ Date: Tue, 6 Feb 90 18:28:54 EST From: jose@neuron.siemens.com (Steve Hanson) To: Connectionists@RI.CMU.EDU, TheoryNet@ibm.com, ai-chi@lll-lcc.llnl.gov, ailist@ai.ai.mit.edu, arpanet-bboards@mc.lcs.mit.edu, biotech%umdc.bitnet@siemens.siemens.com, comp-ai@ucbvax.berkeley.edu, dynsys-l%uncvm1.bitnet@siemens.siemens.com, epsynet%uhupvm1.bitnet@siemens.siemens.com, fj-ai%etl.jp@relay.cs.net, fox@vtcs1.cs.vt.edu, gs@xp.psych.nyu.edu, hecht@ztivax.siemens.com, human-nets@aramis.rutgers.edu, info-futures@cs.bu.edu, iss@cadillac.siemens.com, jws@ib.rl.ac.uk, mcmi!denny@siemens.siemens.com, mcvax!swivax!otten@uunet.uu.net, ming@demon.siemens.com, unido!mod-ki%gmdzi@siemens.siemens.com, msgs@clarity.princeton.edu, msgs@neuron.siemens.com, neuron@hplabs.hp.com, nlist@bellcore.com, nnsc@nnsc.nsf.net, optics-l%taunivm.bitnet@siemens.siemens.com, parsym@sumex-aim.stanford.edu, physics@mc.lcs.mit.edu, regine@ztivax.siemens.com, remmele@ztivax.siemens.com, self-org@mc.lcs.mit.edu, simulation@ufl.edu, soft-eng@mintaka.lcs.mit.edu, ue@ztivax.siemens.com, vision-list@ads.com, zercher@ztivax.siemens.com Subject: NIPS-90 WORKSHOPS Call for Proposals REQUEST FOR PROPOSALS NIPS-90 Post-Conference Workshops November 30 and December 1, 1990 Following the regular NIPS program, workshops on current topics on Neural Information Processing will be held on November 30 and December 1, 1990, at a ski resort near Denver. Proposals by qualified individuals interested in chairing on of these workshops are solicited. Past topics have included: Rules and Connectionist Models; Speech; Vision; Neural Network Dynamics; Neurobiology; Computational Complexity Issues; Fault Tolerance in Neural Networks; Benchmarking and Comparing Neural Network Applications; Architectural Issues; Fast Training Techniques; VLSI; Control; Optimization, Statistical Inference, Genetic Algorithms. The format of the workshop is informal. Beyond reporting on past research, their goal is to provide a forum for scientists actively working in the field to freely discuss current issues of concern and interest. Sessions will meet in the morning and in the afternoon of both days, with free time in between for the ongoing individual exchange or outdoor activities. Specific open or controversial issues are encouraged and preferred as workshop topics. Individuals interested in chairing a workshop must propose a topic of current interest and must be willing to accept responsibility for their group's discussion. Discussion leaders' responsibilities include: arrange brief informal presentations by experts working on this topic, moderate or lead the discussion, and report its high points, findings and conclusions to the group during evening plenary sessions, and in a short (2 page) summary. Submission Procedure: Interested parties should submit a short proposal for a workshop of interest by May 17, 1990. Proposals should include a title and a short description of what the workshop is to address and accomplish. It should state why the topic is of interest or controversial, why it should be discussed and what the targeted group of participants is. In addition, please send a brief resume of the prospective workshop chair, list of publications and evidence of scholarship in the field of interest. Mail submissions to: Dr. Alex Waibel Attn: NIPS90 Workshops School of Computer Science Carnegie Mellon University Pittsburgh, PA 15213 Name, mailing address, phone number, and e-mail net address (if applicable) must be on all submissions. Workshop Organizing Committee: Alex Waibel, Carnegie-Mellon, Workshop Chairman; Kathie Hibbard, University of Colorado, NIPS Local Arrangements; Howard Watchel, University of Colorado, Workshop Local Arrangements; PROPOSALS MUST BE RECEIVED BY MAY 17,1990 Please Post ------------------------------ Posted-Date: Wed, 7 Feb 90 10:00:21 CST Date: Wed, 7 Feb 90 10:00:21 CST From: steve@titan.tsd.arlut.utexas.edu (Steve Glicker) To: nelson_p@apollo.com, simulation@ufl.edu Subject: Cellular Automata This in response to Peter's question on Cellular Automata from V13 N9 of the digest. First of all, I've been curious about Autodesk's CA lab too. The limitations you mentioned sound most unfortunate, but I am glad that you shared them. You had a question about moving things between cells, > But when stuff moves between cells "collisions" may occur. The ^^^^^ > ... > ------------------------- > |1 |2 |3 |4 | > | | | | | Say A (in cell 5) and B (in cell 7) > | | | | | are both moving toward cell 6 at > ------------------------- time T. If I just compute the > |5 |6 |7 |8 | state for time T+1 *sequentially* > | A-->| |<--B | | then when I get to cell 5 I can't > | | | | | determine its state for time T+1 > ------------------------- without knowing whether it was > |9 |10 |11 |12 | successful in its attempt to move > | | | | | into cell 6. But the state of > | | | | | cell 6 for time T+1 is not known > ------------------------- yet, and it is also a function of > 7 which I haven't evaluated yet. It seems to me that you would like cells to know something about what their neighbors are doing in stead of moving stuff around. Clearly, data is moved when every time you see a change in Conway's life game and if cells do know what their neighbors are doing (or are dependent on their neighbors actions) they are not acting like automata -- not that there is anything wrong with that, they just arn't automata. John VonNewmann was working with something similar in which the state of an automata (I think his automata had 29 states in stead of two) was directly related to the way the automata functions. He was working on programming them and eventually developing a mechanism which would reproduce, like a biological virus. Burk ed., VonNewmann, (1966). "Theory of Self-Reproducing Automata," University of Illinois Press, Urbana. There has been work in this area since. You mentioned interest in some references on CA and specifically to Fluid Dynamics. Chapter 16 of the CA book referenced below is on Fluid Dynamics. Tommaso Toffoli, Morman Margolus (1987). "Cellular Automata Machines: A new Environment for Modeling", The MIT Press. This text covers many areas. I am only through the first few chapters so far it's very good. -steve (steve@titan.tsd.arlut.utexas.edu) ------------------------------ Posted-Date: Wed, 7 Feb 90 09:42:47 CST Date: Wed, 7 Feb 90 09:42:47 CST From: steve@titan.tsd.arlut.utexas.edu (Steve Glicker) To: simulation@ufl.edu Subject: Gaming, Simulation and Face Validity In response to Paul Fishwick's article on Gaming, Simulation and Face Validity, On the related topic of simulators in education... In my search for professional organization for simulation, I came across an organization called CONDUIT which deals with educational software (including simulators). An excerpt from their catalog reads, Our role is analogous to that of a university press, except that we publish in an electronic medium and work only with educational materials. We are not a clearing house. We subject all submissions to a rigorous review process involving content consultants and our in-house technical staff. Their software index is organized as follows. The (S)'s indicate that they appear to have one or more simulators in the category. Economics (S) English Foreign Languages Mathematics Music Science Biology (S) Chemistry (S) Physics (S) Political Science (S) Psychology (S) Research Methods Scientific Method Sociology For information they list: Telephone: 1-800-365-9774 Bitnet: AWCCONPA@UIAMVS US Mail: CONDUIT The University of Iowa Oakdale Camus Iowa City, Iowa 52242 -steve (steve@titan.tsd.arlut.utexas.edu) ------------------------------ END OF SIMULATION DIGEST ************************