{
  "altLabels": [
    "DPR"
  ],
  "definition": "A neural passage-retrieval method that represents questions and passages with dense vectors, commonly using a dual-encoder architecture, to retrieve candidate passages.",
  "id": "dense-passage-retrieval",
  "kind": "Method",
  "license": "https://creativecommons.org/publicdomain/zero/1.0/",
  "links": [
    {
      "label": "Dense Passage Retrieval for Open-Domain Question Answering",
      "type": "definingReference",
      "url": "https://arxiv.org/abs/2004.04906"
    }
  ],
  "modifiedAt": "2026-09-12T22:23:29Z",
  "prefLabel": "Dense Passage Retrieval",
  "publisher": {
    "name": "Searchplex",
    "url": "https://searchplex.net/"
  },
  "relations": [
    {
      "note": "Dense Passage Retrieval is a specific dense retrieval method; dense retrieval is the broader retrieval approach using dense representations.",
      "target": "dense-retrieval",
      "type": "notEquivalentTo"
    },
    {
      "note": "Dense Passage Retrieval commonly uses a dual-encoder architecture, but DPR names a specific retrieval method rather than the architecture itself.",
      "target": "dual-encoder",
      "type": "notEquivalentTo"
    },
    {
      "note": "Semantic search is a broad meaning-oriented search goal or product capability; Dense Passage Retrieval is one method that can support such systems.",
      "target": "semantic-search",
      "type": "notEquivalentTo"
    },
    {
      "note": "Vector search is a similarity-search mechanism over vectors; Dense Passage Retrieval is a passage-retrieval method that may use vector search.",
      "target": "vector-search",
      "type": "notEquivalentTo"
    },
    {
      "target": "dense-retrieval",
      "type": "related"
    },
    {
      "target": "dual-encoder",
      "type": "related"
    },
    {
      "target": "semantic-search",
      "type": "related"
    },
    {
      "target": "vector-search",
      "type": "related"
    },
    {
      "target": "candidate-retrieval",
      "type": "usedFor"
    }
  ],
  "representations": {
    "html": "https://id.searchplex.net/dense-passage-retrieval/",
    "json": "https://id.searchplex.net/dense-passage-retrieval.json",
    "jsonld": "https://id.searchplex.net/dense-passage-retrieval.jsonld"
  },
  "scheme": "https://id.searchplex.net/scheme/",
  "scopeNote": "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.",
  "slugAliases": [
    "dpr"
  ],
  "status": "published",
  "uri": "https://id.searchplex.net/dense-passage-retrieval/"
}