能動学習セミナー

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能動学習セミナー

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  22. 22. P (y|x)12 1 5
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  25. 25. xnext = arg min P✓ (ˆ1 |x) y P✓ (ˆ2 |x) y x2U xnext U ✓ y y1 ˆ y2 ˆ12 1 5
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  27. 27. X xnext = arg max P✓ (y|x) log P✓ (y|x) x y12 1 5
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  44. 44. x Xn ˆ 1 y Rn = G(xi , yi ; ✓) n i=1 ✓ {(xi , yi )} ⇠ p(x, y) p(x, y) G(xi , yi ; ✓)12 1 5
  45. 45. x n X p(xi , yi ) 1 y ˆ Rn,q = G(xi , yi ; ✓) B i=1 q(xi , yi ) ✓ {(xi , yi )} ⇠ q(x, y) p(x, y) G(xi , yi ; ✓) q(x, y) p(xi , yi ) p(xi )p(yi |xi ) p(xi ) = = q(xi , yi ) q(xi )p(yi |xi ) q(xi )12 1 5
  46. 46. ˆ Ex⇠q [Rn,q (✓)] = Ex⇠p [Rn (✓)]12 1 5

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