Created
May 12, 2021 11:56
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A piepline for creating polynomial degree 2 kernel matrix for and its vector norm
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import numpy as np | |
X = np.array([[-0.5, 1], [-1, -1.5], [-1.5, 1.5], [1.5, -0.5], [0.5, -0.5]]) | |
y = np.array([-1, 1, 1, 1, -1]) | |
res = np.empty((5, 5)) | |
def k(X): | |
for i in range(X.shape[0]): | |
for j in range(X.shape[0]): | |
res[i][j] = np.dot(X[i], X[j]) ** 2 | |
return res | |
print(k(X)) | |
def max_norm(X): | |
norms = [] | |
for i in range(X.shape[0]): | |
norms.append(np.linalg.norm(X[i])) | |
print(norms) | |
return max(norms) ** 2 | |
max_norm = max_norm(X) | |
print(max_norm) |
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