Last updated: Jun 15, 2023
The true positive rate (TPR) gives the proportion of correct predictions in predictions of positive classes in Watson OpenScale.
True positive rate at a glance
- Description: Proportion of correct predictions in predictions of positive class
- Default thresholds: lower limit = 80%
- Default recommendation:
- Upward trend: An upward trend indicates that the metric is improving. This means that model retraining is effective.
- Downward trend: A downward trend indicates that the metric is deteriorating. Feedback data is becoming significantly different than the training data.
- Erratic or irregular variation: An erratic or irregular variation indicates that the feedback data is not consistent between evaluations. Increase the minimum sample size for the Quality monitor.
- Problem type: Binary classification
- Chart values: Last value in the timeframe
- Metrics details available: Confusion matrix
Do the math
The True positive rate is calculated by the following formula:
number of true positives
TPR = _________________________________________________________
(number of true positives + number of false negatives)
Learn more
Parent topic: Quality metrics overview