The High Performance Knowledge Bases (HPKB) was a DARPA research program to advance the technology of how computers acquire, represent and manipulate knowledge. The successor of the HPKB project was the Rapid Knowledge Formation (RKF) project.

The primary results of the HPKB project was to focus further research on the Knowledge acquisition bottleneck problem.

HPKB was divided programmatically into three groups:

1. Integrators
2. Technology developers
3. Challenge problem developers

See also

• Knowledge base
  Knowledge base
  A knowledge base is a special kind of database for knowledge management. A Knowledge Base provides a means for information to be collected, organised, shared, searched and utilised.-Types:...
  
  
• Cyc
  Cyc
  Cyc is an artificial intelligence project that attempts to assemble a comprehensive ontology and knowledge base of everyday common sense knowledge, with the goal of enabling AI applications to perform human-like reasoning....
  
   - commercial knowledge base
• OpenCyc - Open Source
  Open source
  The term open source describes practices in production and development that promote access to the end product's source materials. Some consider open source a philosophy, others consider it a pragmatic methodology...
  
   version of Cyc
• Electronic Directory Research (EDR) - Japanese large knowledge base effort
• Project Halo - Ultimate successor project
• Rapid Knowledge Formation (RKF)- follow-on project
• SUMO
  Suggested Upper Merged Ontology
  The Suggested Upper Merged Ontology or SUMO is an upper ontology intended as a foundation ontology for a variety of computer information processing systems. It was originally developed by the Teknowledge Corporation and now is maintained by . It is one candidate for the "standard upper ontology"...
  
   - Suggested Upper Merged Ontology
• Wikipedia
  Wikipedia
  Wikipedia is a free, web-based, collaborative, multilingual encyclopedia project supported by the non-profit Wikimedia Foundation. Its 20 million articles have been written collaboratively by volunteers around the world. Almost all of its articles can be edited by anyone with access to the site,...
  
   - example of large knowledge base that is not yet semantically parse-able
• WordNet
  WordNet
  WordNet is a lexical database for the English language. It groups English words into sets of synonyms called synsets, provides short, general definitions, and records the various semantic relations between these synonym sets...
  
   - a semantic network
  Semantic network
  A semantic network is a network which represents semantic relations among concepts. This is often used as a form of knowledge representation. It is a directed or undirected graph consisting of vertices, which represent concepts, and edges.- History :...
  
   of words, terms used in the English language
  English language
  English is a West Germanic language that arose in the Anglo-Saxon kingdoms of England and spread into what was to become south-east Scotland under the influence of the Anglian medieval kingdom of Northumbria...