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CSLI Calendar, 05 Oct 1995, vol.11:02




        C S L I   C A L E N D A R   O F   P U B L I C   E V E N T S
______________________________________________________________________________

5 October 1995                   Stanford                       Vol. 11, No. 2
______________________________________________________________________________

      A weekly publication of the Center for the Study of Language and
Information (CSLI), Stanford University, Ventura Hall, Stanford, CA 94305-4115
                               ____________

               CSLI ACTIVITIES DURING 4 -- 13 OCTOBER 1995

  WEDNESDAY, 4 OCTOBER
         3:15 - Philosophy of Computation Seminar
                Ventura Hall, Room 17
                The State of the (Theoretic) Art
                Brian Cantwell Smith, Xerox PARC and Stanford Philosophy
                Abstract below

  THURSDAY, 5 OCTOBER
        10:00 - STASS Seminar
                Cordura Hall, Room 100
                The Reflexive/Incremental Approach to Information, Cognition,
                Language, and Action: Information Content, Part 1
                John Perry and David Israel
                Stanford Philosophy and SRI International
                Abstract below

         4:15 - SSP Forum
                Building 60, Room 61-F
                Project Reports
                1995 Symbolic Systems/CSLI Summer Interns
                Abstract below

  FRIDAY, 6 OCTOBER
        12:00 - Logic Lunch
                Building 380, Room 383-N
                A Completeness Proof for Propositional S4 in Cantor Space
                Grigori Mints, Stanford Philosophy
                Abstract below

        12:30 - HCI Seminar
                Skilling Auditorium, SITN Channel E1
                Enabling and Constraining Effects of New Technologies
                Jonathan Grudin, UC Irvine Computer Science
                Abstract below

         3:15 - Philosophy Colloquium
                Encina Hall, Room 423
                Two Faces of Responsibility
                Gary Watson, UC Irvine Philosophy

  TUESDAY, 10 OCTOBER
         4:15 - Logic Seminar
                Building 380, Room 381-T
                Cut-elimination for Higher Order Logic with an Axiom of Choice
                Grigori Mints, Stanford Philosophy
                Abstract below

  WEDNESDAY, 11 OCTOBER 
         3:15 - Philosophy of Computation Seminar
                Ventura Hall, Room 17
                The Mind/Body Problem for Machines
                Brian Cantwell Smith, Xerox PARC and Stanford Philosophy
                Abstract below

  THURSDAY, 12 OCTOBER 
        10:00 - STASS Seminar
                Cordura Hall, Room 100
                The Reflexive/Incremental Approach to Information, Cognition,
                Language, and Action: Information Content, Part 2
                John Perry and David Israel
                Stanford Philosophy and SRI International
                Abstract below

        12:00 - CSLI CogLunch
                Cordura Hall, Room 100
                The Evolution of Consciousness
                Owen Flanagan, Duke Philosophy, Psychology, and Neurobiology
                Abstract below

         4:15 - SSP Forum
                Building 60, Room 61-F
                "Preparing" for Tomorrow's Workplace
                Dennis Matthies, Stanford Center for Teaching and Learning
                Abstract below

  FRIDAY, 13 OCTOBER
        12:30 - HCI Seminar
                Skilling Auditorium, SITN Channel E1
                Sketching Information
                Takeshi Sunaga, Tama Art University, Tokyo

         3:30 - Linguistics Colloquium
                Building 460, Room 146
                Title to be announced
                Manfred Krifka, UT Austin Linguistics and CASBS

                               ____________

The CSLI Calendar appears on Wednesday of each week throughout the academic
year.  Announcements, abstracts, and other information to appear in the
Calendar can be submitted by e-mail to <incalendar@csli.stanford.edu>.

Further information about CSLI and past issues of the CSLI Calendar
are available on the Internet at URL <http://www-csli.stanford.edu/>.
The Calendar is also posted each week to the <csli.bboard> newsgroup.

                               ____________

                    PHILOSOPHY OF COMPUTATION SEMINAR
                         on Wednesday, 4 October
                     3:15 p.m., Ventura Hall, Room 17
                     The State of the (Theoretic) Art
                           Brian Cantwell Smith
                    Xerox PARC and Stanford Philosophy
                         [bcsmith@parc.xerox.com]

The reading for today's seminar is Volume I Chapter 2 of _The Middle
Distance_.  A course description can be found at [http://shr.stanford.edu/
BCSmith/phil395a.html].

                               ____________

                              STASS SEMINAR
                          on Thursday, 5 October
                    10:00 a.m., Cordura Hall, Room 100
      The Reflexive/Incremental Approach to Information, Cognition,
                Language, and Action: Information Content
                       John Perry and David Israel
                Stanford Philosophy and SRI International
                [john@csli.stanford.edu,israel@ai.sri.com]

During the Fall Quarter STASS seminar at CSLI, David Israel and John Perry
will be giving six presentations on their recent paper on what they call the
reflexive/incremental approach to information, cognition, language, and
action.

This second meeting of the Quarter will be the first of two sessions on
Information Content.  As background, see Israel and Perry, "What is
Information?"  In _Information, Language and Cognition_, edited by Philip
Hanson, Vancouver: University of British Columbia Press, 1990: 1-19.  Also
available on WWW via [http://www-csli.stanford.edu/users/john/phil.html].

                               ____________

                          SYMBOLIC SYSTEMS FORUM
                          on Thursday, 5 October
                   4:15 p.m., Building 380, Room 383-N
                             Project Reports
                1995 Symbolic Systems/CSLI Summer Interns

The Symbolic Systems Forum returns for 1995-96 beginning with our annual
roundup of SSP/CSLI summer interns, who will describe how they spent their ten
weeks with local (and not so local) researchers.  This year's interns were:

    Matt MacMahon (Junior) who worked with Barbara Tversky (Psychology),
    Amit Aggarwal (Senior) who also worked with Barbara Tversky,
    Edwin Ong (Junior) who worked with Stanley Peters (Linguistics),
    Lester Dorman (Senior) who worked with John Etchemendy (Philosophy),
    Jon Lindsay (Coterm) who worked with Phil Cohen and Sharon
                               Oviatt (Oregon Graduate Institute),
    Kelley Robinson (Senior) who worked with Paul Skokowski (Livermore),
    Max Klee (Junior) who worked with Herb Clark (Psychology) and
                               Tom Wasow (Linguistics and Philosophy),
    Thomas Willeke (Junior) who worked with Ivan Sag (Linguistics) and
                               Dan Flickinger (CSLI).

Come join us for our first forum of the new academic year.  For students, this
week's forum will also serve as the first meeting for SSP 10.  Students taking
the forum for a unit of credit this quarter will have the option of attending
either forum talks or the video presentations in the new Symbolic Systems Film
Series, which will begin next week.  Details about the Film Series will be
sent to the forum mailing list within the next two days, and details about
getting credit for SSP 10 will be discussed at this Thursday's forum.

                               ____________

                               LOGIC LUNCH
                           on Friday, 6 October
                   12:00 noon, Building 380, Room 383-N
        A Completeness Proof for Propositional S4 in Cantor Space
                              Grigori Mints
                           Stanford Philosophy
                        [mints@csli.stanford.edu]

A new short proof is given for the theorem by J. McKinsey and A. Tarski: modal
system S4 is complete for the topological interpretation in Cantor space.
Order topology on a Kripke model or a finite Lindenbaum algebra results in a
non-Hausdorff space.  Original proof (reproduced also in the book by Rasiowa
and Sikorski) producing a model in Euclidean or Cantor space is rather
complicated.  The proof presented here combines constructions used by McKinsey
and Tarski for S4 with much simpler constructions due to Beth, Dyson and
Kreisel, and Kripke for the intuitionistic logic.

                               ____________

                  SEMINAR ON HUMAN-COMPUTER INTERACTION
                           on Friday, 6 October
                     12:30 p.m., Skilling Auditorium
          Enabling and Constraining Effects of New Technologies
                             Jonathan Grudin
                                UC Irvine
                           [grudin@ics.uci.edu]

Computers have not yet receded ubiquitously into our environment.  We still
confront them, but our perception of what they are is shifting.  Container and
computer metaphors or conceptual models are giving way to those based on
windows and visibility.  What we see through these windows is of course
filtered,but the conceptual model of transparency is being adopted and the
metaphor has uses that are explored in this talk.

In thinking about technologies such as the WWW, we usually stress the wealth
of opportunities that access and visibility bring.  What is enabled is not
always positive (e.g., monitoring is seen in different lights), but on the
whole we see technologies such as WWW, like earlier cases such as print, as
unleashing creative and expansive capabilities.  Which they certainly do.  At
the same time, again like print, these new technologies also introduce
powerful constraining, conservative influences, many of which are consequences
of increased visibility.  Although I am very positive toward these new
technologies, I think that we can only hope to anticipate the nature of their
use by considering the interaction of these liberating and their constraining
forces.

I will illustrate these points with examples from print and other earlier
technologies, before speculating as to effects of new technologies.  One
element in this is how we, as designers and users, will reconcile the
increased visibility of work and other activities with what we have learned
>From ethnographers and others about the mismatch between the reality and our
conceptions of activity.

JONATHAN GRUDIN joined UCI in 1991 following two years at Aarhus University
(Denmark).  Previously he worked three years at MCC in Austin, Texas, studying
software development practice in large organizations, with emphasis on
computer-supported cooperative work.  He also worked five years at Wang
Laboratories as a developer.  He received a Ph.D. in cognitive psychology in
1981 from UC San Diego working with Donald Norman.

                               ____________

                          PHILOSOPHY COLLOQUIUM
                           on Friday, 6 October
                     3:15 p.m., Encina Hall, Room 423
                       Two Faces of Responsibility
                               Gary Watson
                           UC Irvine Philosophy

                               ____________

                              LOGIC SEMINAR
                          on Tuesday, 10 October
                   4:15 p.m., Building 380, Room 381-T
      Cut-elimination for Simple Type Theory with an Axiom of Choice
                              Grigori Mints
                           Stanford Philosophy
                        [mints@csli.stanford.edu]

We present a cut-elimination proof for simple type theory with an axiom of
choice modeled after Takahashi's proof of cut-elimination for simple type
theory with extensionality.  The same proof works when types are restricted,
for example for second-order classical logic with an axiom of choice.

                               ____________

                    PHILOSOPHY OF COMPUTATION SEMINAR
                         on Wednesday, 11 October
                     3:15 p.m., Ventura Hall, Room 17
                    The Mind/Body Problem for Machines
                           Brian Cantwell Smith
                    Xerox PARC and Stanford Philosophy
                         [bcsmith@parc.xerox.com]

The reading for today's seminar is Volume I Chapter 3 of _The Middle
Distance_.  A course description can be found at [http://shr.stanford.edu/
BCSmith/phil395a.html]

                               ____________

                              STASS SEMINAR
                         on Thursday, 12 October
                    10:00 a.m., Cordura Hall, Room 100
      The Reflexive/Incremental Approach to Information, Cognition,
            Language, and Action: Information Content, Part 2
                       John Perry and David Israel
                       Stanford Philosophy and SRI
                [john@csli.stanford.edu,israel@ai.sri.com]

The third meeting of the Autumn STASS series will be the second of two
sessions on Information Content.  As background, see Israel and Perry,
"Information and Architecture."  In _Situation Theory and Its Applications,
vol. 2_, edited by Jon Barwise, Jean Mark Gawron, Gordon Plotkin, and Syun
Tutiya, 147--60.  Stanford University: CSLI Publications.  Also available on
WWW via [http://www-csli.stanford.edu/users/john/phil.html].

                               ____________

                              CSLI COGLUNCH
                         on Thursday, 12 October
                    12:00 noon, Cordura Hall, Room 100
                      The Evolution of Consciousness
                              Owen Flanagan
              Duke Philosophy, Psychology, and Neurobiology
                           [ojf@acpub.duke.edu]

Although all conscious mental states are neural states, neuroscience is not
equipped to answer all the scientific questions we want answered.
Evolutionary biology is needed to answer questions about why we have
experiences at all, whether all conscious mental state types are adaptations;
and cultural and psychological anthropology are needed to answer questions
about conscious mental state types, e.g., certain emotions, that seem to occur
only in certain cultures.  Pain, dreams, lust, and certain unusual emotions
are used to exemplify the thesis.

A description and schedule for the CogLunch series on consciousness can be
found at [http://www-csli.stanford.edu/csli/9495reps/coglunch.html].

                               ____________

                          SYMBOLIC SYSTEMS FORUM
                         on Thursday, 12 October
                   4:15 p.m., Building 380, Room 383-N
                   "Preparing" for Tomorrow's Workplace
                             Dennis Matthies
                Stanford Center for Teaching and Learning
                     [matthies@jessica.stanford.edu]

Suppose you are going to experience a half-dozen different careers.  (That's
careers, not jobs.)  Suppose your average stay on a job is going to be only
three or four years.  Suppose that the form of work you will be doing ten or
so years from now doesn't even exist yet.  Suppose.  Suppose.

The "career"--that upward trajectory along a single, chrome-plated, fully
guaranteed flight path--is gone forever.  How can undergraduates best equip
themselves for a wild ride in the new economy? Is a traditional liberal
education now obsolete? Does "preparation" for tomorrow's workplace even make
sense? Should we just close our eyes and plunge into it?

DENNIS MATTHIES, through the Center for Teaching and Learning and over SITN,
teaches courses like these: Think on Your Feet, Self-Coaching, Precision
Questioning, Mental Ecology, and Handling Information Overload.  His current
clients include companies such as Microsoft, National Semiconductor, and the
public relations firm Wilson McHenry.  As an undergraduate at M.I.T., Dennis
majored in physics; as a graduate student at Stanford he studied philosophy.
For the past several years Dennis has been trying to understand the nature of
"learning-intensive" work, as it develops in Silicon Valley.

                               ____________

                  SEMINAR ON HUMAN-COMPUTER INTERACTION
                          on Friday, 13 October
                     12:30 p.m., Skilling Auditorium
                          Sketching Information
                              Takeshi Sunaga
                        Tama Art University, Tokyo
                        [sunaga@cdr.stanford.edu]

                               ____________

                          LINGUISTICS COLLOQUIUM
                          on Friday, 13 October
                    3:15 p.m., Building 460, Room 146
                          Title to be announced
                              Manfred Krifka
                     UT Austin Linguistics and CASBS
                       [krifka@casbs.stanford.edu]

                               ____________

                            SEMANTICS SEMINAR
                          on Monday, 16 October
                    2:00 p.m., Cordura Hall, Room 100
			Partitive Case and Aspect
                              Paul Kiparsky
                           Stanford Linguistics
                       [kiparsky@csli.stanford.edu]

The Finnish partitive is a structural case which marks objects of atelic
predicates, and indefinite bare plurals and mass nouns regardless of telicity.
It shares both its aspectual and NP-related function with the verbal category
of imperfective aspeies these functions and elucidates the parallelism with
aspect.  I also show that Krifka's (1992) analysis, which derives the
parallelism for a special class of verbs (essentially, verbs of consumption
and creation) is correct for a related Finno-Ugric language, and represents a
historically anterior stage.

                               ____________

Events Elsewhere On Campus:

                       DECISION ANALYSIS COLLOQUIUM
                          on Thursday, 5 October
                   5:30 p.m., Thornton Annex, Room 110
   The Transferable Belief Model and Decision Making Under Uncertainty
                              Philippe Smets
              IRIDIA, Universite Libre de Bruxelles, Belgium
                  Contact: [varner@leland.stanford.edu]
 
The Transferable Belief Model (TBM) is a non-probabilistic model for
representing quantified beliefs. It is developed independently of any
probabilistic underlying model. Its axiomatic justification will be presented.
It is based on rationality requirements that concern conditioning and changing
the frame on which beliefs are defined. The derived mathematical model is
based on belief functions.
 
The major criticism against any non-probabilistic model of belief is usually
built around optimal decision making, in particular around the construction of
Dutch Books. We show how decision is obtained within the TBM through the
construction of the pignistic transformation, which solves the problem of
synchronic Dutch Books. We explain its rationality, and show how diachronic
Dutch Books are avoided even though beliefs are not updated by the Bayesian
rule.

                               ____________