Searchplex ID Retrieval terminology registry

Method

Dense Passage Retrieval

Canonical ID https://id.searchplex.net/dense-passage-retrieval/

A neural passage-retrieval method that represents questions and passages with dense vectors, commonly using a dual-encoder architecture, to retrieve candidate passages.

Also called

Scope

Dense Passage Retrieval is often abbreviated DPR and is associated with the open-domain question-answering method introduced under that name. It is not a synonym for dense retrieval generally, vector search, or semantic search.

Used for

Not equivalent to

  • Dense Passage Retrieval is not Dense Retrieval. Dense Passage Retrieval is a specific dense retrieval method; dense retrieval is the broader retrieval approach using dense representations.
  • Dense Passage Retrieval is not Dual Encoder. Dense Passage Retrieval commonly uses a dual-encoder architecture, but DPR names a specific retrieval method rather than the architecture itself.
  • Dense Passage Retrieval is not Semantic Search. Semantic search is a broad meaning-oriented search goal or product capability; Dense Passage Retrieval is one method that can support such systems.
  • Dense Passage Retrieval is not Vector Search. Vector search is a similarity-search mechanism over vectors; Dense Passage Retrieval is a passage-retrieval method that may use vector search.

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ID