An expert is someone widely recognized as a reliable source of knowledge or skill whose judgement is accorded authority and status by the public or their peers. Experts have prolonged or intense experience, practice or education in a particular field that goes significantly beyond any general or shallow appreciation. The concept is debated within the field of epistemology under the general heading of expert knowledge.
The term is widely used informally, with people being described as 'experts' in order to bolster the relative value of their opinion, when no objective criteria for their 'experthood' is available. The term crank is likewise used to disparage opinions. Academic elitism arises when 'experts' become convinced that only they understand their field of study.
It is not necessary for an individual to have a professional or academic qualification for them to be accepted as an expert. In this respect, a shepherd with 50 years of experience tending flocks would be widely recognized as having complete expertise in the use and training of sheep dogs and the care of sheep.
An expert is someone widely recognized as a reliable source of knowledge, technique, or skill whose judgment is accorded authority and status by the public or their peers.
The opposite of an expert is generally known as a layperson, while someone who occupies a middle grade of understanding is generally known as a technician and often employed to assist experts.
The concepts of experts and expertise is debated within the field of epistemology under the general heading of expertknowledge.
Expertknowledge is a combination of a theoretical understanding of the problem and a collection of heuristic problem-solving rules that experience has shown to be effective in the domain.
Expert systems are constructed by obtaining this knowledge from a human expert and coding it into a form that a computer may apply to similar problems.
Expert Systems with Applications, published by Elsevier, "is a refereed international journal whose focus is on exchanging information relating to expert and intelligent systems applied in industry, government, and universities worldwide.
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