In information theory and coding theory with applications in computer science and telecommunication, error detection and correction or error control are techniques that enable reliable delivery of digital data over unreliable communication channels. Many communication channels are subject to channel noise, and thus errors may be introduced during transmission from the source to a receiver. Error detection techniques allow detecting such errors, while error correction enables reconstruction of the original data in many cases.
Definitions
The general definitions of the terms are as follows:
Error detection is the detection of errors caused by noise or other impairments during transmission from the transmitter to the receiver.
Error correction is the detection of errors and reconstruction of the original, error-free data.
History
An early systematic use of error detection was by Jewish scribes in the precise copying of the Jewish bible, beginning before Christ. An emphasis on minute details of words and spellings evolved into the idea of a perfect text in 135 CE, and with it increasingly forceful strictures that a deviation in even a single letter would make a Torah scroll invalid. The scribes used methods such as summing the number of words per line and per page (Numerical Masorah), and checking the middle paragraph, word and letter against the original. The page was thrown out if a single mistake was found, and three mistakes on a single page would result in the entire manuscript being destroyed (the equivalent of retransmission on a telecommunications channel). The effectiveness of their methods was verified by the accuracy of copying through the centuries demonstrated by discovery of the Dead Sea Scrolls in 1947–1956, dating from c.408 BCE-75 CE.
This kind of automated detection could save administrators hours of manual effort, especially in complex systems where errors might otherwise go unnoticed.
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Wang added that the increase in recent years in the number of cases of the virus, first detected in the Netherlands in 2001, is due to better detection methods ... There was an error, please provide a valid email address.
Anti-virus software has become more accessible, and many offerings now include artificial intelligence and behavioural detection capabilities. These tools can help to detect and neutralise threats quickly.Employee training.
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The debate on false positives (acknowledged by health authorities) points to so-called errors without necessarily questioning the overall validity of the RT-PCR test as a means to detecting the alleged spread of the SARS-CoV-2 virus.
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Entities must confirm they receive a feedback file indicating “no error” after submitting their form. If errors are detected, they must correct and resubmit the form ... a no error feedback is received.”.
“Banks are required to upgrade their electronic systems to include enhanced security measures aimed at preventing errors, detecting fraud, and identifying suspicious transactions,” the association explained.
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The most promising tools involve software and algorithms that can sort through staggering amounts of data to detect subtle patterns that doctors either can't detect on their own or can't detect nearly as quickly. AI could help reduce medical errors.
