LAWS@SRI-AI.ARPA (01/29/85)
From: AIList Moderator Kenneth Laws <AIList-REQUEST@SRI-AI.ARPA> AIList Digest Tuesday, 29 Jan 1985 Volume 3 : Issue 10 Today's Topics: Requests - AI and Chemistry & Symbolics Mailing List, AI Tools - Tree Display & MACSYMA & PSL & Kurzweil's Reader, Symbolic Algebra - Newsgroup & Contest, Pattern Recognition - Bird Counting, News - Recent Articles & Rog-O-Matic, Logic Programming - Tablog, Seminar - Philosophy and AI (MIT) ---------------------------------------------------------------------- Date: Mon 28 Jan 85 15:53:39-PST From: Takashi Okada <OKADA@SUMEX-AIM.ARPA> Subject: AI and Chemistry I am interested in the AI application to chemistry and currently searching a postdoctoral position in universities. Any informations about the research group in this field will be very much appreciated. Thanks in advance. Takashi Okada ( OKADA@SUMEX.ARPA ) Dept. of Chemistry, U.C.Santa Cruz, Santa Cruz, CA 95064 ------------------------------ Date: Mon, 28 Jan 85 12:16 EST From: Tim Finin <Tim%upenn.csnet@csnet-relay.arpa> Subject: Symbolics Mailing List Does anyone know of a network mailing list for users of Symbolics Lisp machines? I'm looking for something like the mailing list that exists for users of the Xerox 1100 series. I would like a place to interact with a large community of users of Symbolics machines. ------------------------------ Date: Mon 28 Jan 85 11:18:41-PST From: PORTA@USC-ECL.ARPA Subject: Displaying Tree Structures Regarding your request for a program to display a tree structure with labeled nodes: Eve Longini Cohen, formerly with our group at the Jet Propulsion Laboratory, developed such a program at Carnegie-Mellon to display a tree representing the results of a theorem-prover. She modified it for us so that it would display the results of our diagnoser and our planner. (I may not have all of the history correct, but I know the program plots trees.) We still have Interlisp code for it. Another group at JPL has a Symbolics Zetalisp version. If you're interested in any of these programs, Eve's Arpanet address is ecohen@aerospace and mine is porta@usc-ecl. The group with the Zetalisp version has no connection to the Arpanet, but you may reach one member, Eric Biefeld, by telephone at (818) 354-0565. Harry J. Porta M.S. 201-203 Jet Propulsion Laboratory California Institute of Technology 4800 Oak Grove Drive Pasadena, California 91109 ------------------------------ Date: Monday, 28-Jan-85 19:31:07-GMT From: MACCALLUM QM (on ERCC DEC-10) <MAHM%edxa@ucl-cs.arpa> Subject: Recent queries in AI List Re: Symbolic Algebra package request (vol 2 #184) MACSYMA will run on top of Franz on a VAX. For full details the person to consult is probably Richard Fateman (Berkeley). I think Symbolics sell the software at about $1200 for university users (their commercial price is about 15 times that). Re: PSL (Kushnier in vol2 #184) This was developed by Martin Griss and colleagues at Utah, and was available, when I last heard, for about $250 for the VAX/VMS version. It can be obtained by writing to Utah Portable Artificial Intelligence Support Systems Group Department of Computer Science 3160 MEB University of Utah Salt Lake City UT 84112 (801) 581-5017 and will run under VMS or Unix on a VAX, on DEC-20 and Apollo, and possibly other machines. Re: Kurzweil Data Entry Machine This beast certainly exists. One was demonstrated here (Queen Mary College, University of London, UK) during a display of computers for use in the Arts Faculty. I believe it belongs to the Oxford University Computing service, and is available for users in the UK from outside Oxford. Malcolm MacCallum (MMaccall@Ucl-cs.ARPA) ------------------------------ Date: Mon, 28 Jan 1985 10:08:09 EST From: AXLER%upenn-1100%upenn.csnet@csnet-relay.arpa Subject: Symbolic Algebra Newsgroup I received the following message last fall re the forming of a symbolic algebra newsgroup. However, despite responding in the affirmative, I have yet to receive any additional mail on the topic. [Begin forwarded message] Return-Path: lseward@Rand-Unix.ARPA From: Larry Seward <lseward%rand-unix.arpa@csnet-relay.csnet> Date: 14 Aug 84 10:58:06 PDT (Tue) Subject: Symbolic Algebra Newsgroup A new newsgroup (net.math.sym) focusing on symbolic algebra is being formed on the UUCP/USENET. The group will cover algorithms, applications and related languages. Currently such issues might be discussed in net.ai, net.math or net.lang. There are 3 algebra systems available under UNIX: REDUCE, MACSYMA or MAPLE, all of which will be applicable to the newsgroup. This message is being sent to REDUCE users with a known network address. Although the newsgroup will be a USENET group, a gateway to the ARPANET is being set up by Jim Purtilo at the University of Illinois. Presumably this will also allow access to BITNET and CSNET. If you would like to be included in such a group, please reply directly to Laurence Leff (..!decvax!allegra!convex!smu!leff), or me if you have difficulty reaching that address. If you will be re-distributing the news locally, or if there are others at your site interested in the group, please include a count of them. Larry Seward [End forwarded message] Dave Axler ------------------------------ Date: Fri 25 Jan 85 20:36:55-PST From: Douglas Galbraith <GALBRAITH@SU-SIERRA.ARPA> Subject: $20 to the first person ... [Forwarded from the Stanford bboard by Laws@SRI-AI.] I will pay $20 to the first person to send me the INVERSE Laplace Transform of this equation: 1 2 F(S) = --- * ---------------------------------- S exp[-A*sqrt(S)] + exp[A*sqrt(S)] where "A" is a real constant and "S" is the variable. Thanks, Douglas Galbraith galbraith@sierra doug@helens ------------------------------ Date: Fri 25 Jan 85 08:30:06-PST From: Nils Nilsson <NILSSON@SU-SCORE.ARPA> Subject: Computers and Birds [Forwarded from the Stanford bboard by Laws@SRI-AI.] Here's a possibly interesting project for "birders" COLLABORATION SOUGHT ON COMPUTER ANALYSIS OF BIRD SONGS We would like to develop a system for determining the number of different species (kinds) of song birds present in an area from "shotgun" recordings of the singing of the entire avian community. The basic problem is to develop programs that can estimate how many kinds of songs there are on a 45 minute sound tape, even though the songs partially overlap one another, show some variation from individual to individual, and there is no "library" of known songs to use for comparisons. An exact count is not required. We wish to be able to determine whether one patch of tropical forest had, say, 140-160 species present when another had only 35-50. We want, in essence, to use tape recorders in the field to substitute for highly trained ornithologists when doing surveys of bird diversity. This work is part of a project of Stanford's CENTER FOR CONSERVATION BIOLOGY in evaluating the "health" of tropical forest ecosystems. The project is at present unsupported. Rewards would be working on a biologically (and perhaps computationally) interesting problem that has immediate importance to today's environmental crisis and, we hope, glory in the form of publication(s). If you are interested, please call: Paul R. Ehrlich, Department of Biology, Stanford (415) 497-3171 or John Harte,Energy and Resources Program, Berkeley (415) 642-8553 ------------------------------ Date: Sun, 27 Jan 85 05:26:39 cst From: Laurence Leff <leff%smu.csnet@csnet-relay.arpa> Subject: Recent Articles Electronic News, December 31, 1984 page 18 Lisp Machine Incorporated received $7.6 million in third round of financing. Electronic News, January 14, 1985, page 47 International Robomation/Intelligence has received $2 million in additional financing from Garrett Corporation. ------------------------------ Date: 27 Jan 85 16:28:14 EST From: Jon.Webb@CMU-CS-IUS2 Subject: Rog-o-matic makes Scientific American [Forwarded from the CMU bboard by Laws@SRI-AI.] The "Computer Recreations" column in this month's Scientific American discusses Rogue and Rog-o-matic. ------------------------------ Date: 25 Jan 85 1635 PST From: Yoni Malachi <YM@SU-AI.ARPA> Subject: Tablog [Forwarded from the Prolog Digest by Laws@SRI-AI.] Tablog (Tableau Logic Programming Language) is a language based on first-order predicate logic with equality that combines functional and logic programming. A program in Tablog is a list of formulas in a first-order logic (including equality, negation, and equivalence). Tablog programs may define either relations or functions. Tablog employs the Manna-Waldinger deductive-tableau proof system as an interpreter in the same way that Prolog uses a resolution-based proof system. Unification is used by Tablog to match a call with a line in the program and to bind arguments. The basic rules of deduction used for computing are nonclausal resolution and rewriting by means of equality and equivalence. A previous message by Uday Reddy (U-REDDY@UTAH-20) classified Tablog together with Eqlog and Kornfeld's work. There are however important differences between the three languages: Kornfeld extends unification to unify expressions declared to be equal but his system will not reduce a term into other term defined to be equal to it. Eqlog is an extension of OBJ1 to use narrowing rather than simple pattern matching when trying to reduce functional terms. Tablog, on the other hand, uses standard unification. It operates on both formulas and terms and uses different inference rules to reduce them. An atomic formula is reduced using nonclausal resolution or is rewritten if it is asserted to be equivalent to another formula. A term gets rewritten using an equality rule that is applied to the goal to be reduced and an assertion in the program. This rule is a generalization of paramodulation. Tablog distinguishes between negation and failure, so in a sense it has 3-value logic. Tablog is strictly first-order so it does not allow higher order functions. References: Y. Malachi, Z. Manna, and R. Waldinger, ``TABLOG -- The Deductive Tableau Programming Language,'' Proceedings of the ACM Symposium on Lisp and Functional Programming, Austin, Texas, August 1984. Also available as: Stanford Computer Science Technical Report No. STAN-CS-1012. (Contact Berg@SCORE for ordering information) -- Yoni Malachi ------------------------------ Date: Mon 28 Jan 85 18:06:37-EST From: David Kirsh <KIRSH%MIT-OZ@MIT-MC.ARPA> Subject: Seminar - Philosophy and AI (MIT) [Forwarded from the MIT bboard by JCMA@MIT-MC.] WHY PHILOSOPHY MIGHT MATTER TO AI DATE: Tuesday, January 29th TIME: 2:30 PM PLACE: 8th Floor Playroom In the 20th century, philosophers have made significant advances toward understanding the nature of our higher mental abilities. Since AI is the science of designing possible minds and mind parts, it would be a surprise if philosophy were not relevant to AI. Questions of the form "What must a person know if he is to be able to: understand a language; make valid inductive inferences; explain the occurrence of a physical event; rationally choose his next action..." are characteristic of modern philosophy, and not surprisingly philosophers have their theories. I hope to convince you that philosophers often ask good questions; they have useful formulations of the terms of certain AI problems; and they have partial solutions to some of these problems. David Kirsh ------------------------------ End of AIList Digest ********************