Example y=W1W2X W1 W2 →y←→ =1 =1 Error Surface 2.0 15 minima 10 W2 0.0 saddle -0.5 minima -1.0 -1.5 -2.0 2.0 -1.5 -1.0 -0.5 0.0 0.5 10 15 20 W1 𝑤1 𝑤2 𝑥 𝑦 𝑦 ො = 1 = 1 𝑦 = 𝑤1𝑤2𝑥 Example 𝑤1 𝑤2 Error Surface saddle minima minima