Definition
The harmonic mean of precision and recall used to evaluate the lexical overlap between an agent's response and the ground truth. In RAG pipelines, it quantifies how accurately the model captures relevant tokens while avoiding extraneous information, balancing the trade-off between verbosity and missing facts.
Not the racing championship or keyboard key; it is a statistical metric for token-level retrieval and generation accuracy.
"A Venn diagram showing the overlap between a reference answer and the generated response; the F1 score measures the size of the shared intersection relative to the total area of both circles."
- Precision(Component)
- Recall(Component)
- Ground Truth(Prerequisite)
- Exact Match (EM)(Alternative Metric)
Conceptual Overview
The harmonic mean of precision and recall used to evaluate the lexical overlap between an agent's response and the ground truth. In RAG pipelines, it quantifies how accurately the model captures relevant tokens while avoiding extraneous information, balancing the trade-off between verbosity and missing facts.
Disambiguation
Not the racing championship or keyboard key; it is a statistical metric for token-level retrieval and generation accuracy.
Visual Analog
A Venn diagram showing the overlap between a reference answer and the generated response; the F1 score measures the size of the shared intersection relative to the total area of both circles.