Changing Landscape W2 Loss L smooth W +△y small W1+△W1 e X1 1,2 +△ small mall b L= W2 +△L 1 X2 small 2Changing Landscape 1 + 1, 2 …… w1 w2 Loss L 𝑦 ො 𝑦 𝑒 𝑏 𝑤1 𝑤2 𝐿 = ෍𝑒 small 𝑥1 𝑥2 +∆𝑤1 +∆y +∆e +∆𝐿 small smooth small small 2