Security
The SHA-1 algorithm, one of the first widely used methods of protecting electronic information, has reached the end of its useful life, according to security experts at the National Institute of Standards and Technology (NIST). ...
Dec 16, 2022
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Internet
When a disease outbreak grabs the public's attention, formal recommendations from medical experts are often muffled by a barrage of half-baked advice, sketchy remedies, and misguided theories that circulate as anxious people ...
May 11, 2020
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Internet
Anticipating questions from users about why they're being tracked by Facebook as Google (Android) and Apple (iOS) release new operating systems, the social network took to a blog post Monday to explain its thinking.
Sep 10, 2019
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Security
Computer experts inside hospitals were working diligently on Wednesday to address a serious new security vulnerability in older versions of the Windows operating system, which is still used in many health care devices even ...
May 16, 2019
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Internet
The alarming messages ping our laptops and phones and parachute into our social media feeds, text messages and private chat groups.
Mar 20, 2020
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Security
Not long after generative artificial intelligence models like ChatGPT were introduced with a promise to boost economic productivity, scammers launched the likes of FraudGPT, which lurks on the dark web promising to assist ...
Oct 25, 2023
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Internet
Just how similar is Instagram's chatty new app, Threads, to Twitter?
Jul 8, 2023
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10
Internet
Twitter is in chaos. Elon Musk, its new owner, has decimated its staff and this week gave those remaining an ultimatum—work grueling hours and be "extremely hardcore " or leave. Hundreds chose the latter and headed for ...
Nov 18, 2022
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Security
In the age of social distancing, many employees have found their workplace shift from an office cubicle to a living room couch.
Aug 31, 2020
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Machine learning & AI
Artificial intelligence systems are smart. They can recognize patterns better than humans, for example. Yet humans are still very much needed. How can you better steer those AI systems? LIACS lecturer Jan van Rijn wrote a ...
Mar 22, 2022
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An expert ( Audio (US) (help·info), also called cognoscente) is someone widely recognized as a reliable source of technique or skill whose faculty for judging or deciding rightly, justly, or wisely is accorded authority and status by their peers or the public in a specific well-distinguished domain. An expert, more generally, is a person with extensive knowledge or ability based on research, experience, or occupation and in a particular area of study. Experts are called in for advice on their respective subject, but they do not always agree on the particulars of a field of study. An expert can be, by virtue of credential, training, education, profession, publication or experience, believed to have special knowledge of a subject beyond that of the average person, sufficient that others may officially (and legally) rely upon the individual's opinion. Historically, an expert was referred to as a sage (Sophos). The individual was usually a profound thinker distinguished for wisdom and sound judgment.
Experts have a prolonged or intense experience through practice and education in a particular field. In specific fields, the definition of expert is well established by consensus and therefore 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. Another example from computer science is that an expert system may be taught by a human and thereafter considered an expert, often outperforming human beings at particular tasks. In law, an expert witness must be recognized by argument and authority.
Research in this area attempts to understand the relation between expert knowledge and exceptional performance in terms of cognitive structures and processes. The fundamental research endeavor is to describe what it is that experts know and how they use their knowledge to achieve performance that most people assume requires extreme or extraordinary ability. Studies have investigated the factors that enable experts to be fast and accurate.
This text uses material from Wikipedia, licensed under CC BY-SA
