microsoftml.get_sentiment：情感分析

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使用方式

microsoftml.get_sentiment(cols: [str, dict, list], **kargs)

Description

為自然語言文字評分，並評定情緒是正面的機率。

詳細資料

get_sentiment 轉換會傳回自然文字情緒為正面的機率。 目前僅支援英文。

引數

cols

要轉換的字元字串或變數名稱清單。 若為 dict，則名稱代表要建立的新變數名稱。

kargs

傳送至計算引擎的其他引數。

傳回

定義轉換的物件。

另請參閱

featurize_text.

範例

'''
Example with get_sentiment and rx_logistic_regression.
'''
import numpy
import pandas
from microsoftml import rx_logistic_regression, rx_featurize, rx_predict, get_sentiment

# Create the data
customer_reviews = pandas.DataFrame(data=dict(review=[
            "I really did not like the taste of it",
            "It was surprisingly quite good!",
            "I will never ever ever go to that place again!!"]))
            
# Get the sentiment scores
sentiment_scores = rx_featurize(
    data=customer_reviews,
    ml_transforms=[get_sentiment(cols=dict(scores="review"))])
    
# Let's translate the score to something more meaningful
sentiment_scores["eval"] = sentiment_scores.scores.apply(
            lambda score: "AWESOMENESS" if score > 0.6 else "BLAH")
print(sentiment_scores)

輸出：

Beginning processing data.
Rows Read: 3, Read Time: 0, Transform Time: 0
Beginning processing data.
Elapsed time: 00:00:02.4327924
Finished writing 3 rows.
Writing completed.
                                            review    scores         eval
0            I really did not like the taste of it  0.461790         BLAH
1                  It was surprisingly quite good!  0.960192  AWESOMENESS
2  I will never ever ever go to that place again!!  0.310344         BLAH