Evaluation Metrics
Quantitative measures used to assess AI model performance, such as accuracy, precision, recall, F1 score, and perplexity.
In-Depth Explanation
Evaluation metrics are quantitative measurements used to assess how well an AI model performs its intended task. Choosing the right metrics is crucial because they determine what the model optimises for and how you judge success.
Common classification metrics:
- Accuracy: Correct predictions / total predictions
- Precision: True positives / (true + false positives)
- Recall: True positives / (true + false negatives)
- F1 Score: Harmonic mean of precision and recall
- AUC-ROC: Area under the receiver operating curve
Language model metrics:
- Perplexity: How surprised the model is by test data
- BLEU: Translation quality vs reference
- ROUGE: Summarisation quality
- Human evaluation: Rated by people
Business-relevant metrics:
- Task completion rate: Did AI accomplish the goal?
- User satisfaction: Did users find it helpful?
- Time saved: Efficiency improvement
- Error rate: Wrong answers / total answers
- Escalation rate: Required human intervention
Business Context
Choosing the right evaluation metrics ensures your AI system is optimised for your actual business goals, not just technical benchmarks.
How Clever Ops Uses This
We help Australian businesses define meaningful evaluation metrics that align AI performance with business outcomes, not just academic benchmarks.
Example Use Case
"Measuring chatbot success by customer satisfaction scores and resolution rate rather than just technical metrics like response speed."