英文:
Finding the difference in number of words in a sentence in python
问题
在这里，我们可以看到“Ref”和“Hyp”有3个不同的单词，因为“Q R Code”在“Hyp”中不存在。如果Python中有任何内置函数可以检查这一点并输出3作为结果，那么可以吗？
英文:
Say I have 2 sentences,
Ref: Q R CODE SCANNER APP EXIT KARE
Hyp: WORKOUTS SCANNER APP EXIT KARE
Here we can see that the Ref has 3 different words from the Hyp, since the Q R Code is not present in Hyp. If there is any built-in function in Python that will check this and output 3 as a result?
答案1
得分: 1
这里是一个使用集合的简单示例：
ref = "Q R CODE SCANNER APP EXIT KARE"
hyp = "WORKOUTS SCANNER APP EXIT KARE"
ref_set = set(ref.split())
hyp_set = set(hyp.split())
print(len(ref_set - hyp_set)) # 3
请注意，这忽略了单词的顺序，以及忽略了重复的单词。
英文:
Here's a simple example using sets:
ref = "Q R CODE SCANNER APP EXIT KARE"
hyp = "WORKOUTS SCANNER APP EXIT KARE"
ref_set = set(ref.split())
hyp_set = set(hyp.split())
print(len(ref_set - hyp_set)) # 3
Note that this ignores the order of words, as well as ignoring duplicate words.
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