Information theory | Entropy and information

Information content

In information theory, the information content, self-information, surprisal, or Shannon information is a basic quantity derived from the probability of a particular event occurring from a random variable. It can be thought of as an alternative way of expressing probability, much like odds or log-odds, but which has particular mathematical advantages in the setting of information theory. The Shannon information can be interpreted as quantifying the level of "surprise" of a particular outcome. As it is such a basic quantity, it also appears in several other settings, such as the length of a message needed to transmit the event given an optimal source coding of the random variable. The Shannon information is closely related to entropy, which is the expected value of the self-information of a random variable, quantifying how surprising the random variable is "on average". This is the average amount of self-information an observer would expect to gain about a random variable when measuring it. The information content can be expressed in various units of information, of which the most common is the "bit" (more correctly called the shannon), as explained below. (Wikipedia).

Video thumbnail

Scott Aaronson - What is Information?

Free access to Closer to Truth's library of 5,000 videos: http://bit.ly/2UufzC7 Information is a common word but has technical meanings so important that our entire world depends on them. What are the kinds of information? How about the scientific definitions of information? How does info

From playlist What is Information? - CTT Interview Series

Video thumbnail

(IC 1.6) A different notion of "information"

An informal discussion of the distinctions between our everyday usage of the word "information" and the information-theoretic notion of "information". A playlist of these videos is available at: http://www.youtube.com/playlist?list=PLE125425EC837021F Attribution for image of TV static:

From playlist Information theory and Coding

Video thumbnail

The Internet of Things

If you are interested in learning more about this topic, please visit http://www.gcflearnfree.org/ to view the entire tutorial on our website. It includes instructional text, informational graphics, examples, and even interactives for you to practice and apply what you've learned.

From playlist The Internet

Video thumbnail

The Internet

If you are interested in learning more about this topic, please visit http://www.gcflearnfree.org/ to view the entire tutorial on our website. It includes instructional text, informational graphics, examples, and even interactives for you to practice and apply what you've learned.

From playlist The Internet

Video thumbnail

Big Data

If you are interested in learning more about this topic, please visit http://www.gcflearnfree.org/ to view the entire tutorial on our website. It includes instructional text, informational graphics, examples, and even interactives for you to practice and apply what you've learned.

From playlist Big Data

Video thumbnail

Giulio Tononi - What is Information?

Free access to Closer to Truth's library of 5,000 videos: http://bit.ly/2UufzC7 Information is a common word but has technical meanings so important that our entire world depends on them. What are the kinds of information? How about the scientific definitions of information? How does info

From playlist What is Information? - CTT Interview Series

Video thumbnail

LinkedIn

If you are interested in learning more about this topic, please visit http://www.gcflearnfree.org/ to view the entire tutorial on our website. It includes instructional text, informational graphics, examples, and even interactives for you to practice and apply what you've learned.

From playlist LinkedIn

Video thumbnail

Web Development - Preparing Content I

The development of a website's content involves a number of options. This first E-Lecture on content development discusses the main theoretical aspects of content organization from linear via hierarchical to hybrid and the main principles of web navigation. Thus, it privides the theoretica

From playlist HTML and CSS Basics

Video thumbnail

Web 2.0 Expo NY 09: Danah Boyd, "Streams of Content, Limited Attention:

"Streams of Content, Limited Attention: The Flow of Information through Social Media" , Danah Boyd (Microsoft Research)

From playlist Web 2.0 Expo New York 2009

Video thumbnail

Typical Decoding for Natural Language Generation (Get more human-like outputs from language models!)

#deeplearning #nlp #sampling Modern language models like T5 or GPT-3 achieve remarkably low perplexities on both training and validation data, yet when sampling from their output distributions, the generated text often seems dull and uninteresting. Various workarounds have been proposed,

From playlist Papers Explained

Video thumbnail

DeBERTa: Decoding-enhanced BERT with Disentangled Attention (Machine Learning Paper Explained)

#deberta #bert #huggingface DeBERTa by Microsoft is the next iteration of BERT-style Self-Attention Transformer models, surpassing RoBERTa in State-of-the-art in multiple NLP tasks. DeBERTa brings two key improvements: First, they treat content and position information separately in a new

From playlist Papers Explained

Video thumbnail

01.3 - ISE2021 - How to measure information

Information Service Engineering 2021 Prof. Dr. Harald Sack Karlsruhe Institute of Technology Summer semester 2021 Lecture 1: Information, Natural Language, and the Web 01.3 - How to measure Information - Information according to Information Theory - Random variables and probability mass

From playlist ISE 2021 - Lecture 01, 14.04.2021

Video thumbnail

SEO Backlinks Tutorial | SEO Link Building Tutorial | Simplilearn

šŸ”„Digital Marketing Specialist Program (Discount Code - YTBE15): https://www.simplilearn.com/advanced-digital-marketing-certification-training-course?utm_campaign=SEOBacklinks-6McePZz4XZM&utm_medium=Descriptionff&utm_source=youtube šŸ”„Professional Certificate Program In Digital Marketing: ht

From playlist Digital Marketing Playlist [2023 Updated]šŸ”„ | Digital Marketing Course | Digital Marketing Tutorial For Beginners | Simplilearn

Video thumbnail

You're Wrong About COPPA (Real Law Review)

ā­ļø Get my videos early & ad free (plus my exclusives!) only on Nebula. Save $10 per year! https://legaleagle.link/getnebula ā­ļø COPPA is better and worse for creators and YouTube than everyone has realized. Get CopyrightCourse to make copyright work for you at https://bit.ly/2Yt5p6M or go

From playlist Law Review News!

Video thumbnail

Wordpress Featured Content 4

I continue the Featured Content Gallery tutorial. I focus on how to allow for multiple blocks of content and how to set up arrows to cycle through that content. Code is Here: http://goo.gl/7ctxe Like before I'm also going to teach you how to do some really cool things with JQuery: Grab

From playlist Wordpress Theme Tutorial

Video thumbnail

Content Writing Tutorial for Beginners | What Is Content Writing | Content Writing Jobs |Simplilearn

šŸ”„Digital Marketing Specialist Program (Discount Code - YTBE15): https://www.simplilearn.com/advanced-digital-marketing-certification-training-course?utm_campaign=ContentWritingTutorialforBeginners-8t2FWD45wNA&utm_medium=Descriptionff&utm_source=youtube šŸ”„Professional Certificate Program I

From playlist Digital Marketing Playlist [2023 Updated]šŸ”„ | Digital Marketing Course | Digital Marketing Tutorial For Beginners | Simplilearn

Video thumbnail

How To Create Audio Recognition System Using AcrCloud C# SDK | Session 01 | #C | #programming

Donā€™t forget to subscribe! In this project series, you will learn to create an audio recognition system using ACRCloud. We will cover the details of interacting with the Acrcloud C# SDK for creating an audio recognition system. This project covers the details necessary to create an audio

From playlist Create Audio Recognition System Using AcrCloud C# SDK

Video thumbnail

How Ads and Clicks Shape the Internet

In this video, youā€™ll learn more about the impact advertisements have on internet users. For more information on this and other topics, visit https://edu.gcfglobal.org/en/topics/. We hope you enjoy!

From playlist Digital Media Literacy

Video thumbnail

Fluidinfo CEO Terry Jones on what API's are and why publishers should offer them for their content

Publishers need to open their content so that third-party developers can help them find new ways to offer and monetize it. That's what Fluidinfo CEO Terry Jones believes and you'll learn why in this podcast interview.

From playlist TOC 2012

Related pages

Support (mathematics) | Surprisal analysis | Lottery mathematics | Monotonic function | Normalization (statistics) | Mutual information | Outcome (probability) | Logarithm | Probability space | Deterministic system | Probability | Independent and identically distributed random variables | Isomorphism | Differential entropy | Number | Independence (probability theory) | Sampling (signal processing) | Event (probability theory) | Bernoulli trial | Claude Shannon | Discrete uniform distribution | Probability mass function | Information theory | Dirac measure | Additive map | Coin flipping | Variance | Categorical variable | A Mathematical Theory of Communication | Integer | Shannon's source coding theorem | Joint probability distribution | One half | Scoring rule | Hartley (unit) | Log-likelihood | Multinomial distribution | Odds | Finite measure | Probability distribution | Bit | Without loss of generality | Probability measure | Random variate | Convolution | Random variable | Expected value | Measure space | Fair coin | Degeneracy (mathematics) | Cauchy's functional equation | Measure (mathematics) | Natural logarithm | Probability theory | Nat (unit) | Shannon (unit) | Twelvefold way | Entropy (information theory) | Combination | Units of information