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(artificial intelligence, information science)
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.

A common form of knowledge, e.g. in a Prolog program, is a collection of facts and rules about some subject.

For example, a knowledge base about a family might contain the facts that John is David's son and Tom is John's son and the rule that the son of someone's son is their grandson. From this knowledge it could infer the new fact that Tom is David's grandson.

See also Knowledge Level.
This article is provided by FOLDOC - Free Online Dictionary of Computing (
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



the result of cognition of reality verified in practice; the true reflection of reality in the consciousness of man.

Knowledge is the opposite of ignorance, the absence of verified information about something. Elementary knowledge resulting from biological regularities is characteristic of animals as well, for whom it serves as a necessary condition for the vital activity of the organism and for the realization of its behavioral activity. Knowledge may be everyday, prescientific, artistic, or scientific; scientific knowledge is subdivided into empirical and theoretical. As a rule, everyday knowledge is limited to the statement and description of facts. Scientific knowledge ascends to the level of explanation of facts and their comprehension in a system of concepts of a given science; it is included within a theory. The essence of scientific knowledge consists in understanding reality in its past, present, and future; in reliably generalizing from facts; in dis-covering necessary and regular laws behind random occurrences and general patterns behind singular events; and on such a basis, in foreseeing phenomena. Human thought is constantly advancing from ignorance to knowledge, from superficial to increasingly more profound and comprehensive knowledge.


The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
It is important to note that although nurses answered all questions regarding pain assessment correctly, they exhibited knowledge deficits in areas that could hinder intervention efforts toward pain relief.
Knowledge deficit and anxiety were frequently associated with the pre-operative and pre-procedure experience.
To shrink its knowledge deficit, Congress should establish a joint advisory committee composed of private sector technology experts and top public sector research-and-development professionals by passing the proposed bill, "Fundamentally Understanding the Usability and Realistic Evolution of Artificial Intelligence Act of 2017," or FUTURE of AI Act.
This is likely to lead to delayed detection and consequently poor survival.28The respondents also displayed a knowledge deficit about screening methods.
This finding could represent a knowledge deficit on when pain reassessments need to occur.
Misinformation, uncertainty, and stigma create barriers to testing, vaccination, and treatment, while a knowledge deficit about the risk of sexual transmission can contribute to spread of the disease.
The study respondents demonstrated knowledge deficit regarding the reasons for preoperative fasting.
If the region's SMEs are facing a cash and knowledge deficit, why aren't the region's banks stepping in to fill the gap?
The literature suggests that medical-surgical nurses have a knowledge deficit that encompasses topics such as types and stages of CKD, fluid and dietary management for patients with CKD, renal replacement therapies, vascular accesses and their care and assessment, medications and medication management for patients with CKD, post-dialysis care, and potential complications (Barton, 2010; Copeland, 2005; Schwaner & McGee, 2012).
Attempts to politicize the courts may be strengthened by this knowledge deficit.
Cratz's case, the keystone nursing care need is the "Knowledge Deficit" nursing diagnosis.

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