LangChain - Evaluation and Testing
Which of the following is the correct syntax to define a custom evaluation metric class in Langchain?
Which of the following is the correct syntax to define a custom evaluation metric class in Langchain?
easy📝 Syntax Q3 of 15
Step-by-Step Solution
Solution:
Step 1: Recognize class-based metric definition
Custom metrics in Langchain are classes inheriting from a base metric class.Step 2: Check for evaluate method with correct parameters
The evaluate method must accept predictions and references and return a score.Final Answer:
class MyMetric(BaseEvalMetric):\n def evaluate(self, predictions, references):\n return score -> Option BQuick Check:
Correct syntax = Class with evaluate method [OK]
Quick Trick: Define class with evaluate(predictions, references) method [OK]
Common Mistakes:
MISTAKES- Using functions instead of classes
- Missing evaluate method
- Defining unrelated methods like train
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