1.1 - 8.10 - SentimentEvaluator Example: Model ('classification:default_sentiment_classification_model.bin') - Teradata Vantage

Teradata Vantage™ - Machine Learning Engine Analytic Function Reference

Product
Teradata Vantage
Release Number
1.1
8.10
Release Date
October 2019
Content Type
Programming Reference
Publication ID
B700-4003-079K
Language
English (United States)

This example uses the classification model file default_sentiment_classification_model.bin.

SQL Call

SELECT * FROM SentimentEvaluator (
  ON SentimentExtractor (
    ON sentiment_extract_input
    USING
    TextColumn ('review')
    Accumulate ('category')
    InputModelFile ('classification:default_sentiment_classification_model.bin')
  ) PARTITION BY 1
  USING
  ObservationColumn ('category')
  SentimentColumn ('out_polarity')
) AS dt;

Output

 evaluation_result                                                                 
 --------------------------------------------------------------------------------- 
 positive record (total relevant, relevant, total retrieved): 5 3 3               
 recall and precision: 0.60 1.00                                                  
 negative record (total relevant, relevant, total retrieved): 5 5 7               
 recall and precision: 1.00 0.71                                                  
 positive and negative record (total relevant, relevant, total retrieved): 10 8 10
 recall and precision: 0.80 0.80

Download a zip file of all examples and a SQL script file that creates their input tables from the attachment in the left sidebar.