Module splade_retrieval 

SPLADE-style sparse expansion layered on BM25 candidate retrieval.

Stage 1: BM25 top-100. Stage 2: programming-term synonym / association expansion. Stage 3: additive expansion BM25-like scoring combined with stage-1 scores.

Structs

SpladeResult

Result row after hybrid retrieval + re-ranking.

Functions

hybrid_retrieve

BM25 top-100 → SPLADE-like expansion → combined re-rank.