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Input

  • Required Inputs:
    • input: Original text
    • actual_output: The generated summary text to be evaluated

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Output

  • Result: Value in the continuous range [0, 1]
  • Reasoning: Detailed explanation of assessment
The Summarization evaluator score is calculated using the following equation: Summarization=min⁡(Alignment Score,Coverage Score)\mathrm{Summarization} = \min(\text{Alignment Score}, \text{Coverage Score}) To break it down:
  • Alignment Score: Determines whether the summary contains hallucinated or contradictory information compared to the original text.
  • Coverage Score: Determines whether the summary includes the necessary information from the original text.

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Interpretation

  • Higher scores: Indicate better summarization quality
  • Lower scores: Indicate missing information or inaccuracies