Mathematics, 24.03.2020 02:27 Harambe659

Let us go through the computation in the video above. Assume we map x and x′∈ℝ2 to feature vectors phi(x) and phi(x′) given by phi(x) =[x1,x2,x12,2‾√x1x2,x22] phi(x′) =[x′1,x′2,x′12,2‾√x′1x′2,x′22]. Which of the following equals the dot product phi(x)⋅phi(x′) ?

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