{
  "site": "Hidden Radius",
  "dateModified": "2026-07-22",
  "terms": [
    {
      "code": "SEO",
      "term": "Search Engine Optimization",
      "definition": "The practice of improving how search engines discover, understand and serve useful public content for relevant searches."
    },
    {
      "code": "GEO",
      "term": "Generative Engine Optimization",
      "definition": "Work intended to improve the usefulness or visibility of source information and entities within generated answers."
    },
    {
      "code": "AEO",
      "term": "Answer Engine Optimization",
      "definition": "The practice of presenting accurate information in a direct, structured form that can satisfy a specific question."
    },
    {
      "code": "AIO",
      "term": "AI Optimization / AI Overviews",
      "definition": "An ambiguous acronym that can describe a broad AI Optimization programme or Google AI Overviews."
    },
    {
      "code": "LLM",
      "term": "Large Language Model",
      "definition": "A model trained on large amounts of language data to predict and generate text and perform language-related tasks."
    },
    {
      "code": "RAG",
      "term": "Retrieval-Augmented Generation",
      "definition": "An architecture that retrieves external information and supplies it as context while a model generates a response."
    },
    {
      "code": "REG",
      "term": "Recognition and Retrieval Engine Guidance",
      "definition": "A framework for preparing identity and information so systems can recognize the correct entity and retrieve accurate facts."
    },
    {
      "code": "Entity recognition",
      "term": "Entity recognition",
      "definition": "The process of identifying which real-world person, organization, product, place or concept a reference describes."
    },
    {
      "code": "Entity resolution",
      "term": "Entity resolution",
      "definition": "The process of determining whether records or references from different sources describe the same entity."
    },
    {
      "code": "Information retrieval",
      "term": "Information retrieval",
      "definition": "The process of identifying and ranking documents, passages, records or fields likely to satisfy an information need."
    },
    {
      "code": "Knowledge graph",
      "term": "Knowledge graph",
      "definition": "A structured representation of entities and the relationships among them."
    },
    {
      "code": "Structured data",
      "term": "Structured data",
      "definition": "Machine-readable data expressed through a defined vocabulary so systems can interpret types, properties and relationships."
    },
    {
      "code": "JSON-LD",
      "term": "JSON-LD",
      "definition": "A JSON-based syntax commonly used to publish linked structured data on web pages."
    },
    {
      "code": "Crawler",
      "term": "Web crawler",
      "definition": "Automated software that requests public resources for discovery, indexing, analysis or retrieval."
    },
    {
      "code": "robots.txt",
      "term": "Robots Exclusion Protocol file",
      "definition": "A public file that communicates crawl preferences to automated clients that follow the protocol."
    },
    {
      "code": "Index",
      "term": "Search or retrieval index",
      "definition": "A processed collection of pages, passages, records or entities available for querying."
    },
    {
      "code": "Query fan-out",
      "term": "Query fan-out",
      "definition": "A technique in which a system issues several related searches to address different parts of a complex request."
    },
    {
      "code": "Grounding",
      "term": "Grounding",
      "definition": "The use of retrieved or supplied evidence to anchor a generated response."
    },
    {
      "code": "Attribution",
      "term": "Attribution",
      "definition": "Identification of the source, author or organization responsible for evidence used in an answer."
    },
    {
      "code": "Passage retrieval",
      "term": "Passage retrieval",
      "definition": "Selection of a specific section of a document that may answer a question without using the complete page."
    },
    {
      "code": "AI agent",
      "term": "AI agent",
      "definition": "A system that can plan, use tools, observe results and perform bounded actions toward a goal."
    },
    {
      "code": "IndexNow",
      "term": "IndexNow",
      "definition": "A protocol that notifies participating search engines when important URLs are added, updated or deleted."
    },
    {
      "code": "Discoverability",
      "term": "Discoverability",
      "definition": "The ability of a URL, record or source to be encountered by a crawler or connected system."
    },
    {
      "code": "Retrievability",
      "term": "Retrievability",
      "definition": "The ability of a relevant document, passage or fact to be located for a request."
    },
    {
      "code": "Representation accuracy",
      "term": "Representation accuracy",
      "definition": "The degree to which a generated description remains faithful to current source evidence."
    }
  ]
}