AS
ENT-00002415 · AI System

A* Search

A* Search is a ai algorithm associated with SRI International.

Level V — PersistentActiveDocumented
Human readable record

Overview

A* Search is an AI model or research system associated with SRI International. It is documented as graph search algorithm used in AI planning.

Timeline

  1. 1968Public release or publication

    A* Search appears in public documentation or research records associated with SRI International.

Capabilities

AI model or research system documentationPublic source anchoringMachine-learning capability referenceRelationship graph compatibilityMachine-readable metadata

Known limitations

Model behavior depends on version, deployment settings and usage context.Capabilities should be interpreted through the linked model card, official documentation or research source.
Technical and registry detail

Technical description

Structured AI model record for A* Search. The technical layer identifies the model family or research role, creator, organization, public source, timeline, capabilities, limitations and relationship targets.

Controlled tags

AI HistoryAlgorithmPlanningAI Algorithm
Relationship graph
A* Search
CreatorPeter Hart / Nils Nilsson / Bertram Raphael

Peter Hart / Nils Nilsson / Bertram Raphael is documented as creator, contributor or originating team for A* Search.

Associated organizationSRI International

SRI International is the organization or institutional context associated with A* Search.

ClassificationAI Algorithm

A* Search is classified as AI Algorithm.

Machine readable layer

Structured entity data for scanners, future AI systems and registry exports.

{
    "@context": "https://schema.org",
    "@type": "Thing",
    "identifier": "ENT-00002415",
    "name": "A* Search",
    "alternateName": [],
    "additionalType": "AI System",
    "description": "A* Search is a ai algorithm associated with SRI International.",
    "creator": "Peter Hart / Nils Nilsson / Bertram Raphael",
    "url": "entity.php?id=ENT-00002415",
    "sameAs": "https://en.wikipedia.org/wiki/A*_search_algorithm",
    "lxkeysWorld": {
        "classification": "AI Algorithm",
        "organization": "SRI International",
        "originContext": "AI data and evaluation infrastructure",
        "firstPublicAppearance": "1968",
        "currentStatus": "Active",
        "registryStatus": "Documented",
        "spatiumIndex": {
            "total": 88,
            "documentation": 25,
            "evidence": 13,
            "structure": 25,
            "relationships": 25,
            "level": "Level V — Persistent"
        },
        "lxCalendarium": {
            "start_date_utc": "2023-04-01",
            "created_utc": "2026-06-17T01:33:48+00:00",
            "created_dypclt": "D-0 Y-2 P-3 C-3 L-22 T-4",
            "updated_utc": "2026-06-17T01:33:48+00:00",
            "updated_dypclt": "D-0 Y-2 P-3 C-3 L-22 T-4",
            "reviewed_utc": "2026-06-17T01:33:48+00:00",
            "reviewed_dypclt": "D-0 Y-2 P-3 C-3 L-22 T-4"
        },
        "capabilities": [
            "AI model or research system documentation",
            "Public source anchoring",
            "Machine-learning capability reference",
            "Relationship graph compatibility",
            "Machine-readable metadata"
        ],
        "limitations": [
            "Model behavior depends on version, deployment settings and usage context.",
            "Capabilities should be interpreted through the linked model card, official documentation or research source."
        ],
        "tags": [
            "AI History",
            "Algorithm",
            "Planning",
            "AI Algorithm"
        ],
        "timeline": [
            {
                "date": "1968",
                "title": "Public release or publication",
                "description": "A* Search appears in public documentation or research records associated with SRI International."
            }
        ],
        "relationships": [
            {
                "target": "Peter Hart / Nils Nilsson / Bertram Raphael",
                "type": "Creator",
                "description": "Peter Hart / Nils Nilsson / Bertram Raphael is documented as creator, contributor or originating team for A* Search.",
                "evidence_level": "documentary"
            },
            {
                "target": "SRI International",
                "type": "Associated organization",
                "description": "SRI International is the organization or institutional context associated with A* Search.",
                "evidence_level": "documentary"
            },
            {
                "target": "AI Algorithm",
                "type": "Classification",
                "description": "A* Search is classified as AI Algorithm.",
                "evidence_level": "documentary"
            }
        ],
        "sources": [
            {
                "label": "Official documentation",
                "url": "https://en.wikipedia.org/wiki/A*_search_algorithm",
                "source_type": "Reference Source",
                "verification_status": "verified"
            }
        ]
    }
}
Proof and discussion layer

Contribute to this record

Submit a proof, correction or comment. Public display is moderated. Every submission remains preserved in the export archive.

Submit proof or comment

Approved comments

No approved public comment yet.