metacluster.py 文件源码

def cosine_affinity(X):
    epsilon = 1e-8
    S = cosine_similarity(X)
    S[S > 1] = 1.0  # Rounding problems
    S += 1 + epsilon

    # Sanity checks
    assert(not (S < 0).any())
    assert(not np.isnan(S).any())
    assert(not np.isinf(S).any())

    return S