- published: 20 Sep 2016
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Information theory is a branch of applied mathematics, electrical engineering, and computer science involving the quantification, storage, and communication of information. Information theory was originally developed by Claude E. Shannon to find fundamental limits on signal processing and communication operations such as data compression. Since its inception in a landmark 1948 paper by Shannon entitled "A Mathematical Theory of Communication", it has been broadened to find applications in many other areas, including statistical inference, natural language processing, cryptography, neurobiology, the evolution and function of molecular codes, model selection in ecology, thermal physics,quantum computing, linguistics, plagiarism detection,pattern recognition, anomaly detection and other forms of data analysis.
A key measure in information theory is "entropy". Entropy quantifies the amount of uncertainty involved in the value of a random variable or the outcome of a random process. For example, identifying the outcome of a fair coin flip (with two equally likely outcomes) provides less information (lower entropy) than specifying the outcome from a roll of a die (with six equally likely outcomes). Some other important measures in information theory are mutual information, channel capacity, error exponents, and relative entropy.
M10 Information Processing Assignment
Quantum Computation and Quantum Information is the study of the information processing tasks that can be accomplished using Quantum Mechanical Systems. In Computer Science and Physics, Quantum Information is information that is held in the state of a quantum system. Quantum information is the basic entity of study in quantum information theory, and can be manipulated using engineering techniques known as quantum information processing. Much like classical information can be processed with digital computers, transmitted from place to place, manipulated with algorithms, and analyzed with the mathematics of computer science, so also analogous concepts apply to quantum information. The theory of quantum information is a result of the effort to generalize classical information theory to the qua...
Claude Elwood Shannon was an American mathematician, electrical engineer, and cryptographer known as "the father of information theory". Shannon is noted for having founded information theory with a landmark paper that he published in 1948. He is perhaps equally well known for founding digital circuit design theory in 1937, when, as a 21-year-old master's degree student at the Massachusetts Institute of Technology (MIT), he wrote his thesis demonstrating that electrical applications of Boolean algebra could construct any logical, numerical relationship. Shannon contributed to the field of cryptanalysis for national defence during World War II, including his basic work on codebreaking and secure telecommunications. Subscribe - never miss a video! https://www.youtube.com/channel/UC_S8ZlDCR...
Cryptology is a combination of Cryptography & Cryptanalysis. Cryptology is employed to communicate securely, authenticate messages and sign digitally. This four-week course “Introduction to Cryptology” is designed for both Computer Science and Mathematics students, touching upon the most important ideas and techniques of the present day cryptology. All the pre-requisite topics are revised during the lectures making this course self-contained and accessible to a wider audience. It is hoped that this course will prepare interested students for a more extensive course on Information Security. This excellent course "Cryptology” is presented by highly qualified and highly knowledgeable Prof. Sugata Gangopadhyay, Department of Computer Science & Engineering (CSE), IIT - Roorkee, as a part the N...
http://j.mp/2censsp
Lecture 1 of the Course on Information Theory, Pattern Recognition, and Neural Networks. Produced by: David MacKay (University of Cambridge) Author: David MacKay, University of Cambridge A series of sixteen lectures covering the core of the book "Information Theory, Inference, and Learning Algorithms" (Cambridge University Press, 2003, http://www.inference.eng.cam.ac.uk/mackay/itila/) which can be bought at Amazon (http://www.amazon.co.uk/exec/obidos/ASIN/0521642981/davidmackay0f-21), and is available free online (http://www.inference.eng.cam.ac.uk/mackay/itila/). A subset of these lectures used to constitute a Part III Physics course at the University of Cambridge. The high-resolution videos and all other course material can be downloaded from the Cambridge course website (http://www...
What is Information? - Part 2a - Introduction to Information Theory: Script: http://crackingthenutshell.com/what-is-information-part-2a-information-theory - Claude Shannon - Bell Labs - Father of Information Theory - A Mathematical Theory of Communication - 1948 - Book, co-written with Warren Weaver - How to transmit information efficiently, reliably & securely through a given channel (e.g. tackling evesdropping) - Applications. Lossless data compression (ZIP files). Lossy data compression (MP3, JPG). Cryptography, thermal physics, quantum computing, neurobiology - Shannon's definition not related to meaningfulness, value or other qualitative properties - theory tackles practical issues - Shannon's information, a purely quantitative measure of communication exchanges - Shannon's E...
Considered the founding father of the electronic communication age, Claude Shannon's work ushered in the Digital Revolution. This fascinating program explores his life and the major influence his work had on today's digital world through interviews with his friends and colleagues. [1/2002] [Science] [Show ID: 6090]
Brains, Minds and Machines Seminar Series The Integrated Information Theory of Consciousness Speaker: Dr. Christof Koch, Chief Scientific Officer, Allen Institute for Brain Science Date: Tuesday, September 23, 2014 Location: Singleton Auditorium, 46-3002 Abstract: The science of consciousness has made great strides by focusing on the behavioral and neuronal correlates of experience. However, such correlates are not enough if we are to understand even basic facts, for example, why the cerebral cortex gives rise to consciousness but the cerebellum does not, though it has even more neurons and appears to be just as complicated. Moreover, correlates are of little help in many instances where we would like to know if consciousness is present: patients with a few remaining islands of functioni...
Lecture Series on Digital Communication by Prof.Bikash. Kumar. Dey , Department of Electrical Engineering,IIT Bombay. For more details on NPTEL visit http://nptel.iitm.ac.in
Ashwin Nayak, University of Waterloo Quantum Hamiltonian Complexity Boot Camp http://simons.berkeley.edu/talks/ashwin-nayak-2014-01-16
The Art of Doing Science and Engineering: Learning to Learn" was the capstone course by Dr. Richard W. Hamming (1915-1998) for graduate students at the Naval Postgraduate School (NPS) in Monterey California. This course is intended to instill a "style of thinking" that will enhance one's ability to function as a problem solver of complex technical issues. With respect, students sometimes called the course "Hamming on Hamming" because he relates many research collaborations, discoveries, inventions and achievements of his own. This collection of stories and carefully distilled insights relates how those discoveries came about. Most importantly, these presentations provide objective analysis about the thought processes and reasoning that took place as Dr. Hamming, his associates and other ...
First and foremost this is a promotional clip pointing you in the direction of the original creators of the material. Secondly this is Educational in a way that could Save Lives. For original video see:Christof Koch and Giulio Tononi on Consciousness at the FQXi conference 2014 in Vieques https://www.youtube.com/watch?v=1cO4R_H4Kww
Founded by Claude Shannon in 1948, information theory has taken on renewed vibrancy with technological advances that pave the way for attaining the fundamental limits of communication channels and information sources. Increasingly playing a role as a design driver, information theory is becoming more closely integrated with associated fields such as coding, signal processing and networks. In this talk, Sergio Verdu reviews the current research trends in the field as well as some of its longstanding open problems. Sergio Verdu is the Eugene Higgins Professor of Electrical Engineering at Princeton University where he teaches and conducts research on information theory. He was elected a Fellow of the IEEE in 1992 and a member of the National Academy of Engineering in 2007. He received the 200...
المحاضرة الاولى : مادة المعلومات والترميز information theory د. حسام ( كلية مدينة العلم الجامعة)