Question

我有一个包含1200个句子的列表。我想计算一个列表中一个句子的Jaccard系数，后面跟着所有其他句子。就像sent1将与sent2,3，...然后sent2与sent3,4，... 我已经有一个功能，需要2套并返回Jaccard系数。我只是想知道如何为上面的场景编写python循环。

list_question=[] #This List is later filled with sentences from a file

def jaccard(a,b): # computes Jaccard
    c=a.intersection(b)
    return float(len(c))/(len(a)+len(b)-len(c))

# ....Here i want to write the loop to compute the jaccard of sentences as explained in the question

我想形成一组基于Jaccard Coeff得分相似的句子＆gt; 0.5

由于

Answer 1

您可以像这样使用itertools.combination：

import itertools

def do_some_stuff(first, second):
    print('comapring', first, 'to', second)

sentences_list = ['fisrt', 'second', 'third', 'forth']
combinations = itertools.combinations(sentences_list, 2)
for first, second in combinations:
    do_some_stuff(first, second)

上面的代码段会为您提供此输出：

comapring fisrt to second
comapring fisrt to third
comapring fisrt to forth
comapring second to third
comapring second to forth
comapring third to forth

如何将列表中的句子与Python中出现的所有句子进行比较？

1 个答案: