1.1 - 8.10 - SentimentEvaluator Example: Dictionary Table Instead of Model File - 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 a dictionary table, sentiment_word, instead of a model file. See sentiment_word in SentimentExtractor Example: Dictionary Table Instead of Model File.

SQL Call

SELECT * FROM SentimentEvaluator (
  ON SentimentExtractor (
    ON sentiment_extract_input PARTITION BY ANY
    ON sentiment_word AS dict DIMENSION
    USING
    TextColumn ('review')
    Accumulate ('category')
  ) PARTITION BY 1
  USING
  ObservationColumn ('category')
  SentimentColumn ('out_polarity')
) AS dt;

Output

 evaluation_result                                                                
 -------------------------------------------------------------------------------- 
 positive record (total relevant, relevant, total retrieved): 5 5 6              
 recall and precision: 1.00 0.83                                                 
 negative record (total relevant, relevant, total retrieved): 5 3 3              
 recall and precision: 0.60 1.00                                                 
 positive and negative record (total relevant, relevant, total retrieved): 10 8 9
 recall and precision: 0.80 0.89

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