Research any topic before you write.

Find related topics. | Discover entities. | See connections. | Build a topical map.

Cyc

Cyc (pronounced /ˈsaɪk/ SYKE) is a long-term artificial intelligence (AI) project that aims to assemble a comprehensive ontology and knowledge base that spans the basic concepts and rules about how the world works. Hoping to capture common sense knowledge, Cyc focuses on implicit knowledge. The project began in July 1984 at MCC and was developed later by…

History, Applications & Art

Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.

Research this topic

Explore the main themes, entities and connections around Cyc. Start with the topic map, then use the sections below for research and deeper semantic analysis.

Explore this topic

Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Developers
Cycorp, Inc.
Original author
Douglas Lenat
Release
1984; 42 years ago (1984)
Stable release
6.1 / November 27, 2017; 8 years ago (2017-11-27)
Type
Knowledge representation language and inference engine
Written in
Lisp, CycL, SubL

Topics to explore

Browse the full topic structure. Each item opens a new analysis centered on that subject.

Overview

History

Knowledge base

Inference engine

Releases

Applications

Criticisms

Notable employees

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

Map overview Semantic statistics

Cyc

Nodes67
Edges66
Triples342
Avg. degree1.97
Density0.029851
Components1

How this topic connects Entity context

See the strongest relationship patterns around the current topic before diving into the raw triples.

Cyc

Top relations

related to Further reading · 232
Cyc → AAAI, AAAI Press, AAAI Spring Symposium, AAAI Symposium, AAAI Technical Report SS-01-04, AAAI Workshop, Acapulco, Addison-Wesley, Addison-Wesley Professional, Agent Architectures, Alan Belasco, An Interactive Dialogue System, An Introduction, Annapolis, Answering Questions, Applications, Applying Cyc, Archived, Arise, Artificial Intelligence
related to history · 21
Cyc → AI, CEO, Computer Technology Corporation, CycL, Cycorp, Douglas Lenat, From January, HOL, In, Japanese, July, Lenat, MCC, Microelectronics, Representation Language Language, RLL, Russell Greiner, Stanford University, The, The CycL
related to Knowledge base · 17
Cyc → BillClintonor, By, Collections, Constants, CycL, Each, EquivalenceRelation, For, France, FruitFn, Functions, Individual, The, There, Tree-ThePlant, Truth, Unlike
related to OpenCyc · 15
Cyc → Apache License, Cycorp, Group, It, Java, Linux, Microsoft Windows, OpenCyc, RDF-compatible, Semantic Web, Standard Upper Ontology Working, SubL, Texai, The, The CycL
has application · 13
Cyc → As, Cleveland Clinic, CycL, CycSecure, GlaxoSmithKline, In, Lycos, MathCraft, One Cyc, Response Team, The, The Terrorism Knowledge Base, US STRATCOM Computer Emergency
related to Criticisms · 13
Cyc → AI, Catherine Havasi, CEO, Doug Lenat's, Gary Marcus, Geometric Intelligence, IBM's Watson, Luminoso, Machine-learning, Pedro Domingos, Sometimes, The Cyc, This
related to ResearchCyc · 8
Cyc → Cycorp, English, February, In, In July, It, Java-based, ResearchCyc
related to Notable employees · 6
Cyc → Cycorp, Douglas LenatMichael WitbrockPat HayesRamanathan, GuhaStuart, MCC, RussellSrinija SrinivasanJared FriedmanJohn McCarthy, This
related to External links · 5
Cyc → AGI Article, Cycorp, Obituary, UC Berkeley, Yuxi Liu
related to Inference engine · 4
Cyc → An, For, It, The Cyc

Important terminology Word statistics

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

knowledge 2005 intelligence et al conference base proceedings project lenat cycorp 2002 international inference cycl aaai july released 2004 opencyc

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
CycDevelopersCycorp, Inc.1.00infobox
CycOriginal authorDouglas Lenat1.00infobox
CycRelease1984; 42 years ago (1984)1.00infobox
CycStable release6.1 / November 27, 2017; 8 years ago (2017-11-27)1.00infobox
CycTypeKnowledge representation language and inference engine1.00infobox
CycWebsitewww.cyc.com1.00infobox
CycWritten inLisp, CycL, SubL1.00infobox
Cycis apredecessor project to IBM's Watson0.90text
Cychas applicationIn0.60section
Cychas applicationGlaxoSmithKline0.60section
Cychas applicationCleveland Clinic0.60section
Cychas applicationCycL0.60section

Related concept clusters Concept neighborhoods

These clusters group vocabulary that occurs around closely connected concepts in the source material.

    Connections between topic areas Semantic bridges

    Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.

    Min side: 3
    For writers, content strategists, SEOs, marketers and creators — from quick topic research to advanced semantic analysis.