encoding.py 文件源码

def normalizeEnc(enc, method):
    """
    normalize encoding w. global normalization scheme(s)

    parameters:
        enc: the encoding vector to normalize
        method:
            'ssr': signed square root
            'l2g': global l2 normalization
    """
    # ssr-normalization (kinda hellinger-normalization)
    if 'ssr' in method:
        enc = np.sign(enc) * np.sqrt(np.abs(enc))

    if 'l2g' in method:
        enc = preprocessing.normalize(enc)

    return enc