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Change in entropy formula5/11/2023 ![]() Quantifying the amount of information requires the use of probabilities, hence the relationship of information theory to probability. , Machine Learning: A Probabilistic Perspective, 2012.Ī foundational concept from information is the quantification of the amount of information in things like events, random variables, and distributions. Information theory is concerned with representing data in a compact fashion (a task known as data compression or source coding), as well as with transmitting and storing it in a way that is robust to errors (a task known as error correction or channel coding). The field was proposed and developed by Claude Shannon while working at the US telephone company Bell Labs. It is a subfield of mathematics and is concerned with topics like data compression and the limits of signal processing. Information theory is a field of study concerned with quantifying information for communication.
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