@prefix schema: <https://schema.org/> .
@prefix af: <https://anchorfact.org/ns#> .

<https://anchorfact.org/kb/ai/sparse-retrieval-and-bm25>
  a schema:TechArticle ;
  schema:headline "Sparse Retrieval and BM25" ;
  schema:url <https://anchorfact.org/ai/sparse-retrieval-and-bm25/> ;
  af:status "public" ;
  af:confidence "medium" ;
  af:confidenceScore "0.725" ;
  af:confidenceBasis "verified_sources" ;
  af:generationMethod "ai_structured" .

<https://anchorfact.org/kb/ai/sparse-retrieval-and-bm25>
  schema:citation <https://www.elastic.co/docs/reference/elasticsearch/index-settings/similarity> ;
  af:sourceTier "B" .

<https://anchorfact.org/kb/ai/sparse-retrieval-and-bm25>
  schema:citation <https://lucene.apache.org/core/9_10_0/core/org/apache/lucene/search/similarities/BM25Similarity.html> ;
  af:sourceTier "B" .

<https://anchorfact.org/kb/ai/sparse-retrieval-and-bm25>
  schema:citation <https://docs.weaviate.io/weaviate/concepts/search/keyword-search> ;
  af:sourceTier "B" .