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TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20300310T030000 RDATE:20301103T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20310309T030000 RDATE:20311102T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20320314T030000 RDATE:20321107T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20330313T030000 RDATE:20331106T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20340312T030000 RDATE:20341105T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20350311T030000 RDATE:20351104T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20360309T030000 RDATE:20361102T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20370308T030000 RDATE:20371101T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT END:VTIMEZONE BEGIN:VEVENT UID:d4c0aed7c1d3106be89674304fadf61f CATEGORIES:RuCCS Colloquia:Fall 2003 CREATED:20151203T141540 SUMMARY:Bayesian models of human learning LOCATION:Department of Brain and Cognitive Sciences - Massachusetts Institute of Tec hnology DESCRIPTION:October 7, 2003 at 1:00 p.m.\nPsychology Room 101, Busch Campus\nDr. Joshua Tenenbaum\nDepartment of Brain and Cognitive Sciences - Massachusetts Inst itute of Technology\nBayesian models of human learning and reasoning\nHow c an people learn the meaning of a new word from just a few\nexamples? What makes a set of examples more or less representative of\na concept? What ma kes two objects seem more or less similar? Why are\nsome generalizations a pparently based on all-or-none rules while\nothers appear to be based on gr adients of similarity? How do we infer\nthe existence of hidden causal pro perties or novel causal laws? I\nwill describe an approach to explaining t hese aspects of everyday\ninduction in terms of rational statistical infere nce. In our Bayesian\nmodels, learning and reasoning are explained in term s of probability\ncomputations over a hypothesis space of possible concepts , word\nmeanings, or generalizations. The structure of the learner's\nhypo thesis spaces reflects their domain-specific prior knowledge,\nwhile the na ture of the probability computations depends on\ndomain-general statistical principles. The hypotheses can be thought\nof as either potential rules f or abstraction or potential features for\nsimilarity, with the shape of the learner's posterior probability\ndistribution determining whether generali zation appears more\nrule-based or similarity-based. Bayesian models thus offer an\nalternative to classical accounts of learning and reasoning that rest\non a single route to knowledge -- e.g., domain-general statistics or\ ndomain-specific constraints -- or a single representational paradigm\n-- e .g., abstract rules or exemplar similarity. This talk will illustrate\nthe Bayesian approach to modeling learning and reasoning on a range of\nbehavi oral case studies, and contrast its explanations with those of\nmore tradit ional process models.\n X-ALT-DESC;FMTTYPE=text/html:
October 7, 2003 at 1:00 p.m.
Psychology Room 101, Busch Campus
Dr. Joshua Tenenbaum
Department of Brain and Cognitive Sciences - Massachusetts Institute of Technology
Bayesian models of human le arning and reasoning
How can people learn the meaning of a new w
ord from just a few
examples? What makes a set of examples more or
less representative of
a concept? What makes two objects seem mor
e or less similar? Why are
some generalizations apparently based o
n all-or-none rules while
others appear to be based on gradients of simi
larity? How do we infer
the existence of hidden causal properties
or novel causal laws? I
will describe an approach to explaining th
ese aspects of everyday
induction in terms of rational statistical infer
ence. In our Bayesian
models, learning and reasoning are explained
in terms of probability
computations over a hypothesis space of possibl
e concepts, word
meanings, or generalizations. The structure of th
e learner's
hypothesis spaces reflects their domain-specific prior knowl
edge,
while the nature of the probability computations depends on
dom
ain-general statistical principles. The hypotheses can be thought
of as either potential rules for abstraction or potential features for
s
imilarity, with the shape of the learner's posterior probability
distrib
ution determining whether generalization appears more
rule-based or simi
larity-based. Bayesian models thus offer an
alternative to classic
al accounts of learning and reasoning that rest
on a single route to kno
wledge -- e.g., domain-general statistics or
domain-specific constraints
-- or a single representational paradigm
-- e.g., abstract rules or exe
mplar similarity. This talk will illustrate
the Bayesian approach
to modeling learning and reasoning on a range of
behavioral case studies
, and contrast its explanations with those of
more traditional process m
odels.