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[読み会]Teaching Categories to Human Learners with...

mei28
May 18, 2021
22

[読み会]Teaching Categories to Human Learners with Visual Explanations

読み会資料
Teaching Categories to Human Learners with Visual Explanations (CVPR 2018)

mei28

May 18, 2021
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  1.  •ஶऀ: •Oisin Mac Aodha, Shihan Su, Yuxin Chen, Pietro

    Person, Yisong Yue •California Institute of Technology •ग़య: CVPR 2018 •ͳΜͰಡΜ͔ͩ?: ࠷৽ͷػցڭࣔΛΩϟονΞοϓ͍͔ͨ͠Β ࿦จ৘ใ
  2.  • ͳը૾ू߹ ʹରֶͯ͠शऀͷԾઆ ͸มԽ͢Δ Ծઆ ͷࣄޙ෼෍: ਪ࿦࣌: T ⊂

    X T h h P(h ∣ T) ∝ P(h) ∏ xt ∈ T yt ≠ ̂ yh t P (y t ∣ h, x t) P (y t ∣ h, x t) = 1 1 + exp ( −αh (xt) yt) ఏҊख๏ STRICTΞϧΰϦζϜ: Կ΋͠ͳͱ͖ͷ ճ౴ʹର͢Δ ֬৴౓
  3.  •ैདྷ͸ᩦཉʹޡࠩ࠷খΛ࠷దԽ → ඞͣ͠΋༗ӹͰ͸ͳ͍ •ೳಈֶशʹώϯτΛಘͯɼΫϥεͷ୅දྫΛఏࣔ • ʹͳΔͱSTRICTͱಉ͡ʹͳΔ β, γ →

    ∞ ఏҊख๏ EXPLAINΞϧΰϦζϜ: Modeling Representativeness D (x t) = 1 1 + exp ( −γ dist (xt)) ଞͷը૾ͱൺ΂ͯ ͲΕ͘Β͍཭Ε͍ͯΔ͔ dist (x t) = 1 N N ∑ n=1 x t − x n 2 2
  4.  •ڭࡐू߹ ͰͳʹΛબ୒͢Δ͔ → ֶशऀͷޡࠩΛݮΒ͍ͨ͠ •Ծઆ ʹରͯ͠ɼ؍ଌՄೳͳσʔλͱͷޡࠩΛ࣍ͷΑ͏ʹఆٛ T h ఏҊख๏

    Teaching Algorithm: ͲͷαϯϓϧΛఏࣔ͢Δ͔ʁ err c (h) = x : ( ̂ yh ≠ y c ∧ y = y c) ∨ ( ̂ yh = y c ∧ y ≠ y c) | | .