{
  "definition": "A bias in retrieval, ranking, or recommendation where already popular items receive disproportionate exposure or preference.",
  "distinctions": [
    {
      "reason": "Popularity bias concerns item popularity and exposure; position bias concerns the effect of display rank or position.",
      "statement": "Popularity Bias is not Position Bias.",
      "target": "position-bias",
      "targetLabel": "Position Bias",
      "targetUri": "https://id.searchplex.net/position-bias/"
    },
    {
      "reason": "Popularity bias favors popular items; relevance is the usefulness or topical fit of an item for a query or information need.",
      "statement": "Popularity Bias is not Relevance.",
      "target": "relevance",
      "targetLabel": "Relevance",
      "targetUri": "https://id.searchplex.net/relevance/"
    }
  ],
  "id": "popularity-bias",
  "kind": "Phenomenon",
  "license": "https://creativecommons.org/publicdomain/zero/1.0/",
  "links": [
    {
      "label": "The Unfairness of Popularity Bias in Recommendation",
      "type": "canonicalSurvey",
      "url": "https://arxiv.org/abs/1907.13286"
    }
  ],
  "modifiedAt": "2026-09-14T06:43:46Z",
  "prefLabel": "Popularity Bias",
  "publisher": {
    "name": "Searchplex",
    "url": "https://searchplex.net/"
  },
  "relations": [
    {
      "note": "Popularity bias concerns item popularity and exposure; position bias concerns the effect of display rank or position.",
      "target": "position-bias",
      "type": "notEquivalentTo"
    },
    {
      "note": "Popularity bias favors popular items; relevance is the usefulness or topical fit of an item for a query or information need.",
      "target": "relevance",
      "type": "notEquivalentTo"
    },
    {
      "target": "position-bias",
      "type": "related"
    },
    {
      "target": "ranking",
      "type": "related"
    },
    {
      "target": "relevance",
      "type": "related"
    }
  ],
  "representations": {
    "html": "https://id.searchplex.net/popularity-bias/",
    "json": "https://id.searchplex.net/popularity-bias.json",
    "jsonld": "https://id.searchplex.net/popularity-bias.jsonld"
  },
  "scheme": "https://id.searchplex.net/scheme/",
  "scopeNote": "Popularity bias can affect recommendations, search ranking, training data, and implicit feedback loops. It is not the same as relevance, although popularity can be used as one relevance or utility signal.",
  "status": "published",
  "uri": "https://id.searchplex.net/popularity-bias/"
}