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K
- knowledge
- The objects, concepts and relationships that are assumed to exist in some area of interest. A collection of knowledge, represented using some knowledge representation language is known as a knowledge base and a program for extending and/or querying a knowledge base is a knowledge-based system. Knowledge differs from data or information in that new knowledge may be created from existing knowledge using logical inference. If information is data plus meaning then knowledge is information plus processing.
- knowledge base
- A collection of knowledge expressed using some formal knowledge representation language. A knowledge base forms part of a knowledge-based system (KBS).
- knowledge-based system
- (KBS) A program for extending and/or querying a knowledge base.
- knowledge level
- A level of description of the knowledge of an agent that is independent of the agent's internal symbol-level representation. Knowledge can be attributed to agents by observing their actions. An agent "knows" something if it acts as if it had the information and is acting rationally to achieve its goals. The "actions" of agents, including knowledge base servers and knowledge-based systems, can be seen through a tell and ask functional interface, where a client interacts with an agent by making logical assertions (tell), and posing queries (ask).
- knowledge representation
- The subfield of artificial intelligence concerned with designing and using systems for storing knowledge - facts and rules about some subject. A body of formally represented knowledge is based on a conceptualisation - an abstract view of the world that we wish to represent. In order to manipulate this knowledge we must specify how the abstract conceptualisation is represented as a concrete data structure. An ontology is an explicit specification of a conceptualisation.
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