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SentenceRanker

tokio_prompt_orchestrator::compression

Struct SentenceRanker 

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pub struct SentenceRanker { /* private fields */ }
Expand description

Keeps only the top-K most relevant sentences using TF-IDF scoring.

keep_fraction is in (0, 1]: 0.5 keeps the top 50% of sentences. Sentences are re-assembled in their original order after ranking.

This is the highest-impact compressor for long RAG-retrieved contexts.

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impl SentenceRanker

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pub fn new(keep_fraction: f64) -> Self

Create a sentence ranker.

§Arguments
  • keep_fraction — fraction of sentences to retain (0.0–1.0). Clamped to [0.05, 1.0] to avoid empty output.

Trait Implementations§

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impl Compressor for SentenceRanker

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fn compress(&self, input: &str) -> CompressionResult

Apply this compression strategy to the input text.
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fn name(&self) -> &'static str

Human-readable name for metrics/logging.

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