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

<https://anchorfact.org/kb/ai/retrieval-metadata-filtering>
  a schema:TechArticle ;
  schema:headline "Retrieval Metadata Filtering" ;
  schema:url <https://anchorfact.org/ai/retrieval-metadata-filtering/> ;
  af:status "public" ;
  af:confidence "medium" ;
  af:confidenceScore "0.725" ;
  af:confidenceBasis "verified_sources" ;
  af:generationMethod "ai_structured" .

<https://anchorfact.org/kb/ai/retrieval-metadata-filtering>
  schema:citation <https://docs.pinecone.io/guides/search/filter-by-metadata> ;
  af:sourceTier "B" .

<https://anchorfact.org/kb/ai/retrieval-metadata-filtering>
  schema:citation <https://qdrant.tech/documentation/search/filtering/> ;
  af:sourceTier "B" .

<https://anchorfact.org/kb/ai/retrieval-metadata-filtering>
  schema:citation <https://docs.weaviate.io/weaviate/search/filters> ;
  af:sourceTier "B" .