1.0 - 8.00 - NEREvaluator Example - Teradata Vantage

Teradata® Vantage Machine Learning Engine Analytic Function Reference

Product
Teradata Vantage
Release Number
1.0
8.00
Release Date
May 2019
Content Type
Programming Reference
Publication ID
B700-4003-098K
Language
English (United States)

This function evaluates the efficacy of the model file ner_model.bin, created by the NERTrainer function in terms of precision, recall, and f1_measure.

Input

SQL Call

SELECT * FROM NEREvaluator (
  ON ner_sports_test2 PARTITION BY 1
  USING
  TextColumn ('content')
  ModelFile ('ner_model.bin')
) AS dt;

Output

type precision recall f1_measure
LOC 1.0000 0.4444 0.6154
ORG 0.0000 0.0000 -1.0000
PER 0.7222 0.8125 0.7647
-AVG- 0.7778 0.4884 0.6000