High Performance Knowledge Base (HPKB)

IET was a key member of the HPKB, a highly successful three-year initiative sponsored by the Defense Advanced Research Projects Agency (DARPA) aimed at developing innovative technologies supporting the construction by knowledge engineers of knowledge bases, ontologies, and associated libraries of problem-solving strategies. Approximately two dozen leading-edge research institutions participated. For this effort, IET developed challenge problems to focus and evaluate HPKB technology. Our challenge problem domain was "crisis management" -- supporting intelligence analysts or their automated agents in interpreting international events and providing a corporate memory about past international crises. A primary goal of HPKB in this domain was to develop large, reusable ontologies and common sense knowledge bases about actors, actions, and interests in the international system, including key aspects of nations' or regions' international relations background. HPKB has been succeeded by DARPA's Rapid Knowledge Formation (RKF) program, in which subject matter experts enter domain knowledge into KBs directly, without knowledge engineer intervention. IET has also been selected to perform the RKF challenge problem development and evaluation management role.