Human-level concept learning through probabilistic program induction
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1 B.M Lake, R. Salakhutdinov, J.B. Tenenbaum Human-level concept learning through probabilistic program induction journal club at
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3 two aspects in which machine learning spectacularly lags behind human learning
4 two aspects in which machine learning spectacularly lags behind human learning one-shot learning of new concepts
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7 two aspects in which machine learning spectacularly lags behind human learning one-shot learning of new concepts
8 two aspects in which machine learning spectacularly lags behind human learning one-shot learning of new concepts rich representations
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19 one-shot learning
20 human or machine?
21 human or machine?
22 human or machine?
23 human or machine?
24 human or machine?
25 generate conditioned on alphabet
26 human or machine?
27 human or machine?
28 human or machine?
29 human or machine?
30 human or machine?
31 human or machine?
32 human or machine?
33 generate freely
34 human or machine?
35 human or machine?
36 human or machine?
37 human or machine?
38 human or machine?
39 human or machine?
40 human or machine?
41
42 Bayesian Program Learner
43
44 motivation reverse engineer human learning
45 motivation reverse engineer human learning method understand the computational problem of learning first
46 simulation
47 simulation model physical world
48 simulation model physical world
49 simulation model physical world
50 uncertainty
51 uncertainty underdetermination of inference problems by experience
52 uncertainty underdetermination of inference problems by experience computational intractability of environment
53 simulation uncertainty
54 simulation uncertainty rules of probability }(includes Bayes rule)
55 simulation uncertainty rules of probability }(includes Bayes rule) does the search for an ideal learner stop here?
56 simulation uncertainty rules of probability }(includes Bayes rule) does the search for an ideal learner stop here? model space?
57 simulation uncertainty rules of probability }(includes Bayes rule) does the search for an ideal learner stop here? model space? set of all models (luckily, this exists)
58 simulation uncertainty rules of probability }(includes Bayes rule) does the search for an ideal learner stop here? model space? set of all models (luckily, this exists) brute force search
59 simulation uncertainty rules of probability }(includes Bayes rule) does the search for an ideal learner stop here? model space? set of all models (luckily, this exists) brute force search how can this be made tractable?
60 simulation uncertainty rules of probability }(includes Bayes rule)
61 simulation uncertainty rules of probability }(includes Bayes rule) }principles for choice of representation
62 simulation uncertainty rules of probability }(includes Bayes rule) learning to learn }principles for choice of representation
63 simulation uncertainty rules of probability }(includes Bayes rule) learning to learn compositionality }principles for choice of representation
64 simulation uncertainty rules of probability }(includes Bayes rule) learning to learn compositionality causality }principles for choice of representation
65 learning to learn
66 learning to learn [Griffiths et al 2008]
67 learning to learn [Griffiths et al 2008]
68 compositionality
69 compositionality The green bear is eating chocolate.
70 compositionality The green bear is eating chocolate. [Grosse et al 2012]
71 logic cough sneeze flu TB possible? t t t t y t t f f n f f f f y
72 truth table
73 truth table operators
74 truth table operators propositional logic
75 truth table operators propositional logic predicates, quantifiers
76 truth table operators propositional logic predicates, quantifiers first-order logic
77 truth table operators propositional logic predicates, quantifiers first-order logic λ-calculus
78 truth table operators propositional logic predicates, quantifiers first-order logic turing-completeness λ-calculus
79 truth table operators propositional logic predicates, quantifiers first-order logic expressive power turing-completeness λ-calculus
80 logic cough sneeze flu TB possible? t t t t y t t f f n f f f f y
81 probability cough sneeze flu TB probability t t t t 0.1 t t f f f f f f 0.3
82 truth table propositional logic first-order logic turing-completeness λ-calculus
83 truth table joint probability table propositional logic first-order logic turing-completeness λ-calculus
84 truth table joint probability table propositional logic bayes nets first-order logic turing-completeness λ-calculus
85 truth table joint probability table propositional logic bayes nets first-order logic turing-completeness λ-calculus ψλ -calculus
86 truth table joint probability table propositional logic bayes nets first-order logic turing-completeness λ-calculus ψλ -calculus all programs all distributions
87 filename=wigner_jc_anglicandemo.clj
88 (define a (flip 0.3)) (define b (flip 0.3)) (define c (flip 0.3)) (+ a b c) ,5 0,375 0,25 0,125 0 P (n) = n n n
89 (define a (flip 0.3)) (define b (flip 0.3)) (define c (flip 0.3)) (+ a b c) ,5 0,375 0,25 0,125 0 P (n) = n n n sampling semantics distribution semantics
90 (define a (flip 0.3)) (define b (flip 0.3)) (define c (flip 0.3)) (+ a b c) ,5 0,375 0,25 0,125 0 P (n) = n n n sampling semantics distribution semantics theorem any computable distribution can be represented by a Church expression & any (a.s.) halting Church expression can be represented by a computable distribution
91 (define a (flip 0.3)) (define b (flip 0.3)) (define c (flip 0.3)) (+ a b c) ,5 0,375 0,25 0,125 0 P (n) = n n n
92 0,5 0,375 (define a (flip 0.3)) (define b (flip 0.3)) (define c (flip 0.3)) (+ a b c) composition doesn t require 0,25 0,125 0 P (n) = n n n integrals
93 0,5 0,375 (define a (flip 0.3)) (define b (flip 0.3)) (define c (flip 0.3)) (+ a b c) composition doesn t require 0,25 0,125 0 P (n) = n n n integrals generalisation of d.g.m.:
94 0,5 0,375 (define a (flip 0.3)) (define b (flip 0.3)) (define c (flip 0.3)) (+ a b c) composition doesn t require 0,25 0,125 0 P (n) = n n n integrals generalisation of d.g.m.: causality
95 0,5 0,375 (define a (flip 0.3)) (define b (flip 0.3)) (define c (flip 0.3)) (+ a b c) composition doesn t require 0,25 0,125 0 P (n) = n n n integrals generalisation of d.g.m.: causality hierarchical models
96 0,5 0,375 (define a (flip 0.3)) (define b (flip 0.3)) (define c (flip 0.3)) (+ a b c) composition doesn t require 0,25 0,125 0 P (n) = n n n integrals generalisation of d.g.m.: causality hierarchical models non-parametric models
97 models.html#example-causal-models-in-medical- diagnosis sequences.html#probabilistic-context-free- grammars
98
99 generative model
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108 inference
109
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112 [Grosse et al 2012] Grosse, R. B., Salakhutdinov, R., Freeman, W. T., & Tenenbaum, J. B. (2012). Exploiting compositionality to explore a large space of model structures. Conference on Uncertainty in Artificial Intelligence. Retrieved from [Griffiths et al 2008] Griffiths, Thomas L., Charles Kemp, and Joshua B. Tenenbaum. "Bayesian models of cognition." (2008).
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