📄 Context Relevance¶

metrics.rag.external_rag.context_relevance

type: MetricPipeline
main_score: perplexity
preprocess_steps: 
  - type: Copy
    field: contexts
    to_field: references
  - type: Copy
    field: question
    to_field: prediction
  - type: MultiTypeSerializer
    field: prediction
metric: metrics.perplexity_q.flan_t5_small
score_prefix: context_relevance_
[source]

Explanation about Copy¶

Copies values from specified fields to specified fields.

Args (of parent class):
field_to_field (Union[List[List], Dict[str, str]]): A list of lists, where each sublist contains the source field and the destination field, or a dictionary mapping source fields to destination fields.

Examples:
An input instance {“a”: 2, “b”: 3}, when processed by Copy(field_to_field={"a": "b"}) would yield {“a”: 2, “b”: 2}, and when processed by Copy(field_to_field={"a": "c"}) would yield {“a”: 2, “b”: 3, “c”: 2}

with field names containing / , we can also copy inside the field: Copy(field="a/0",to_field="a") would process instance {“a”: [1, 3]} into {“a”: 1}

References: metrics.perplexity_q.flan_t5_small