Question

我在编译下面的代码时遇到错误，我不知道为什么会得到此错误

from sklearn.feature_extraction.text import TfidfVectorizer
from sklearn.metrics.pairwise import cosine_similarity

vectorizer=TfidfVectorizer( ngram_range=(1,1))

similarity = []
for i in range(0,len(data)):
j = a['question1'].iloc[i]
k  = a['question2'].iloc[i]
inputs = []
inputs.append(j)
inputs.append(k)
try:
    inputs = (vectorizer.fit_transform(inputs))
except ValueError:
    inputs=[]
    inputs.append(0)
    inputs.append(0)
j = inputs[0]
k =inputs[1]
j = np.reshape(j,(1,-1))
k = np.reshape(k,(1,-1))
similarity.append(cosine_similarity(j, k))

我遇到错误

 NotImplementedError: Reshaping not implemented for csr_matrix.

Answer 1

TfidfVectorizer.transform()返回一个稀疏矩阵。因此，无法对此进行重塑。首先将其转换为密集数组。试试：

try:
    inputs = vectorizer.fit_transform(inputs).toarray()
except ValueError:
    inputs=[]
    inputs.append(0)
    inputs.append(0)

当我编译时，我收到未实现的错误

1 个答案: