Hi Tech & Innovation

Protecting art and passwords with biochemistry

Security experts fear Q-Day, the day when quantum computers become so powerful that they can crack today's passwords. Some experts estimate that this day will come within the next ten years. Password checks are based on cryptographic ...

Security

NIST releases version 2.0 of cybersecurity framework

The National Institute of Standards and Technology (NIST) has updated the widely used Cybersecurity Framework (CSF), its landmark guidance document for reducing cybersecurity risk. The new 2.0 edition is designed for all ...

Security

Russian hackers suspected of Sweden cyber attack

Online services at some Swedish government agencies and shops have been disrupted in a ransomware attack believed to have been carried out by a Russian hacker group, IT consultancy Tietoevry said.

Business

EU examines Microsoft investment in OpenAI

The EU, racing to regulate the fast-moving world of artificial intelligence, said Tuesday it has started a preliminary study of Microsoft's multi-billion-dollar investment in ChatGPT developer OpenAI to see if it could be ...

Machine learning & AI

Can AI be too good to use?

Much of the discussion around implementing artificial intelligence systems focuses on whether an AI application is "trustworthy": Does it produce useful, reliable results, free of bias, while ensuring data privacy? But a ...

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Expert

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.

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