我正在研究关键字提取问题。考虑非常普遍的情况fromsklearn.feature_extraction.textimportTfidfVectorizertfidf=TfidfVectorizer(tokenizer=tokenize,stop_words='english')t="""TwoTravellers,walkinginthenoondaysun,soughttheshadeofawidespreadingtreetorest.Astheylaylookingupamongthepleasantleaves,theysawthatitwasaPlaneTree."Howu

我正在研究关键字提取问题。考虑非常普遍的情况fromsklearn.feature_extraction.textimportTfidfVectorizertfidf=TfidfVectorizer(tokenizer=tokenize,stop_words='english')t="""TwoTravellers,walkinginthenoondaysun,soughttheshadeofawidespreadingtreetorest.Astheylaylookingupamongthepleasantleaves,theysawthatitwasaPlaneTree."Howu