utils.py 文件源码

def KLDivergenceSim(a,b,topics):
    from scipy.stats import entropy
    import math
    a = fill_list_from_dict(a,topics)
    b = fill_list_from_dict(b,topics)
    entropyOf_A_to_B = entropy(a,b)
    entropyOf_B_to_A = entropy(b,a)
    minusSummedEntropy = -(entropyOf_A_to_B+entropyOf_B_to_A)
    return math.exp(minusSummedEntropy)