rerank

func CrossEncoderRerank ¶

func CrossEncoderRerank(reranker core.Reranker, topK int, logger logging.Logger, metrics core.Metrics) pipeline.Step[*core.RetrievalContext]

CrossEncoderRerank creates a cross-encoder reranking step.

func Order ¶

func Order(
	enhancer core.ResultEnhancer,
	logger logging.Logger,
	metrics core.Metrics,
) pipeline.Step[*core.RetrievalContext]

Order creates a new reranking step.

func ParentDocExpand ¶

func ParentDocExpand(expander core.ResultEnhancer, logger logging.Logger, metrics core.Metrics) pipeline.Step[*core.RetrievalContext]

ParentDocExpand creates a parent document expansion step with logger and metrics.

Parameters:

• expander: result enhancer implementation for expanding chunks
• logger: structured logger (auto-defaults to NoopLogger if nil)
• metrics: metrics collector (optional, can be nil)

Example:

p.AddStep(rerank.ParentDocExpand(expander, logger, metrics))

func Score ¶

func Score(
	reranker core.Reranker,
	topK int,
	logger logging.Logger,
	metrics core.Metrics,
) pipeline.Step[*core.RetrievalContext]

Score creates a new reranking step with logger and metrics.

Parameters:

• reranker: cross-encoder reranker implementation
• topK: number of results to keep after reranking (default: 5)
• logger: structured logger (auto-defaults to NoopLogger if nil)
• metrics: metrics collector (optional, can be nil)

Example:

p.AddStep(rerank.Score(reranker, 10, logger, metrics))

func SentenceWindowExpand ¶

func SentenceWindowExpand(expander core.ResultEnhancer, logger logging.Logger, metrics core.Metrics) pipeline.Step[*core.RetrievalContext]

SentenceWindowExpand creates a sentence window expansion step with logger and metrics.

Parameters:

• expander: result enhancer implementation for expanding chunks with sentence context
• logger: structured logger (auto-defaults to NoopLogger if nil)
• metrics: metrics collector (optional, can be nil)

Example:

p.AddStep(rerank.SentenceWindowExpand(expander, logger, metrics))