simulation@uflorida.cis.ufl.edu (Moderator: Paul Fishwick) (09/27/88)
Volume: 5, Issue: 5, Tue Sep 27 09:06:20 EDT 1988 +----------------+ | TODAY'S TOPICS | +----------------+ (1) Model Approximation and Simplification (2) PhD Programs for Simulation? (3) IEEE News Group (Votes Requested) (4) Digest Archives are now available! Moderator: Paul Fishwick, Univ. of Florida Send topical mail to: simulation@uflorida.cis.ufl.edu ----------------------------------------------------------------------------- Date: Fri, 23 Sep 88 10:04:57 EDT From: Paul Fishwick <fishwick> To: comp.simulation A couple of comments on Lindsay's remarks: > It is possible that using sufficiently advanced technology one > might be able to acquire images at a sufficient rate and with > sufficient information content to allow the initial conditions > to be derived. I am dubious that that information could be > derived using computational methods using anything resembling > current technology in the relevant time. We must use whatever technology and science that we have at the present. Also, noone said that we *have* to use Navier Stokes equations or some other time-consuming representation. We can use lumped models and approximate methods -- this has nothing to do with AI, per se. > Whether or not common sense methods could make use of the available > information (location and approximate velocity) to allow the > robot to react in some useful manner therefore seems to me to > be a valid question. Yes, however, I think that we should compare the commonsense methods with the approximate numerical methods. Again, how do we justify the utility of a commonsense method? Reduction in complexity? Most commonsense methods are more complex due to the massive state space used (i.e. "envisionment"). I am not against commonsense methods in principle, but rather I am against discussing the effective utility of those methods without comparing them directly with existing methods to determine their efficacy. Given even the most sparsely specified information on a physical event (such as object motion), one can develop numerical methods to solve the problem. Of course, there may be guesses at initial conditions and boundary conditions -- science must deal with these kinds of problems daily. Approximation can be handled using statistical methods and model simplification (abstraction). -paul ------------------------------ From: <gatech!att!cblpe!pec@bikini.cis.ufl.edu> Date: Fri, 23 Sep 88 13:59:36 EDT To: fishwick@uflorida.cis.ufl.EDU.UUCP Subject: SIMULATION DIGEST: request for submission Cc: pec@bikini.cis.ufl.edu submission subject: request recommendations for PhD program Does anyone out there have any recommendations for someone starting a PhD program with a research interest in simulations? Specifically, I'm looking for references to essential literature and current research areas, as well as schools/institutions that support such work. Reply to: Pat Connolly pec%cblpe@research.att.COM att!cblpe!pec ------------------------------ From: gatech!att.att.com!hou2d!krsm@bikini.cis.ufl.edu Message-Version: 2 Date: Fri 23 Sep 1988 14:09 EDT End-Of-Header: Email-Version: 2 X-Postmark: srinivasa.k.r.murthy attrd hr1g306 59234 2016154629 hou2d!krsm To: almvma!dmc, rennels@cs.ucla.arpa.UUCP, dmc@ibm.com.UUCP, anderson@lll-crg.llnl.gov.UUCP, pfreeman@note.nsf.gov.UUCP, nsf!pfreeman, seimens!kra, barbacci@sei.cmu.edu.UUCP, fishwick@ufl.edu.UUCP, ronw@virginia.edu.UUCP, yulane!bb Subject: IEEE NEWS GROUP Ua-Message-Id: <post.krsm.Fri 23 Sep 1988 14:08 EDT> End-Of-Protocol: Content-Length: 2383 Friends, I am herewith sending a copy of the electronic bulletin I sent to form ieee news group. Please talk to your friends regarding this (both ieee members and non-members) and collect YES and NO votes with their names and e-mail addresses / employer / organization names ( address etc. optional). I am doing this to make the approval of the news group easy. Thank You K.R.S. Murthy COMPUTER SOCIETY AREA ACTIVITIES BOARD ********************************************************************** IEEE NEWS GROUP ********************************************************************* I am interested in starting a new newsgroup for IEEE enthusiasts. Planned subgroups include communications, computers, aerospace, circuits, microwave, engineering management and any other topic of interest to users of the newsgroup (suggestions welcome). The news group will br entitled ieee with subgroups like ieee.comp (Computer Society), ieee.com (Communications), and with capability to add subgroups based on needs of the readers and user. The news group is open to people interested in IEEE, and also people interested in activities in engineering in general, to help publicize meeting / talk announcements, useful discussions, creative suggestions and any cooperative projects (Example : seeking coauthors for papers; seeking volunteers for technical committees) General discussions of engineering and computer science professions covering topics like pension, ethics, age discrimination, alien engineers, unemployment, licensure and registration, women engineers, U.S. technology policies, continuing education, salary/opinion surveys, entrepreneurial activities, students' concerns are highly potential. SUMMARY ------- THE USERS OF THE NEWS GROUP NEED NOT BE IEEE MEMBERS. This news group will be helpful to streamline the IEEE related activities of all the USENET users. Please post your responses, further enquiries & suggestions to this news group ( news.groups) or to me and / or call or write to : K.R.S. Murthy Room 1G-306 AT&T Bell Labs 480 Red Hill Road Middletown New Jersey U.S.A. 07748 (201)-615-4629 ..!att!hou2d!krsm THE NEWS GROUP'S USEFULNESS AND CREATION OF SUBGROUPS DEPENDS ON ALL YOU (ALL OF US). SO PLEASE RESPOND WITH BOTH POSITIVE AND NEGATIVE COMMENTS SOON TO ME OR POST THEM TO news.groups. Thanks K.R.S. Murthy ------------------------------ Date: Mon, 26 Sep 88 10:36:53 EDT From: Paul Fishwick <fishwick@fish.cis.ufl.edu> To: simulation@ufl.edu Subject: archives available Dear Readers: I have made an archive directory available for those who can use FTP (File Transfer Program). To obtain past issues of the electronic SIMULATION DIGEST, do the following: (1) enter 'ftp bikini.cis.ufl.edu' (2) login as anonymous (3) use your last name as the password (4) change directory to: pub/simdigest I have only recently begun archiving digest issues, so you will find only 'v4n10' and issues beyond this. If your site is not using the TCP/IP protocol and you cannot FTP to a remote site, then you might ask a nearby friend for FTP access. Please *do not* submit any archival requests directly to me - I do not have the resources (i.e. time) to handle direct requests. I hope that this facility will help those of you who have been wanting archives. -paul +------------------------------------------------------------------------+ | Prof. Paul A. Fishwick.... INTERNET: fishwick@bikini.cis.ufl.edu | | Dept. of Computer Science. UUCP: gatech!uflorida!fishwick | | Univ. of Florida.......... PHONE: (904)-335-8036 | | Bldg. CSE, Room 301....... FAX is available | | Gainesville, FL 32611..... | +------------------------------------------------------------------------+ ------------------------------ +--------------------------+ | END OF SIMULATION DIGEST | +--------------------------+