[Solved] Given this code snippet, what will be the output of results? inputs = ["Hi", "Bye"] evaluator = SimpleEvaluator() pipeline =... Given this code snippet, what will be the output of results? | LangChain

LangChain - Evaluation and Testing

Given this code snippet, what will be the output of results?

inputs = ["Hi", "Bye"]
evaluator = SimpleEvaluator()
pipeline = EvaluationPipeline(inputs=inputs, evaluator=evaluator)
results = pipeline.evaluate()

A[{'input': 'Hi', 'score': 1.0}, {'input': 'Bye', 'score': 1.0}]

B[{'input': 'Hi', 'score': 0.9}, {'input': 'Bye', 'score': 0.85}]

CAn error because SimpleEvaluator is undefined

D[] (empty list)

Step-by-Step Solution

Solution:

Step 1: Understand the evaluator behavior
SimpleEvaluator returns scores based on input text, typically less than 1.0.
Step 2: Predict output format
The pipeline's evaluate() returns a list of dicts with input and score keys matching evaluator output.
Final Answer:
[{'input': 'Hi', 'score': 0.9}, {'input': 'Bye', 'score': 0.85}] -> Option B
Quick Check:
Pipeline.evaluate() returns scored inputs list [OK]

Quick Trick: Pipeline run returns list of scored input dictionaries [OK]

Common Mistakes:

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Given this code snippet, what will be the output of results?