Statistical ratios | Decision trees | Classification algorithms | Entropy and information

Information gain ratio

In decision tree learning, Information gain ratio is a ratio of information gain to the intrinsic information. It was proposed by Ross Quinlan, to reduce a bias towards multi-valued attributes by taking the number and size of branches into account when choosingan attribute. Information Gain is also known as Mutual Information. (Wikipedia).

Information gain ratio
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Introduction to Ratios

Basic ratio problems. (from KhanAcademy.org)

From playlist Algebra

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(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

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The Golden Ratio

This video introduces the Golden ratio and provides several examples of where the Golden ratio appears. http:mathispower4u.com

From playlist Mathematics General Interest

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Ratios

This video defines a ratio and provides several examples on how to write a ratio and shows how to simplify a ratio. http://mathispower4u.wordpress.com/

From playlist Ratios and Rates

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Sound vs. Noise: What’s the Actual Difference? (Part 1 of 3)

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From playlist Seeker Plus

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Odds Ratios and Log(Odds Ratios), Clearly Explained!!!

Odds Ratios and Log(Odds Ratios) are like R-Squared - they describe a relationship between two things. And just like R-Squared, you need to determine if this relationship is statistically significant. This StatQuest goes over all these details so that you are ready for any odds ratio and l

From playlist StatQuest

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Dividends - Payout Ratio vs Retention Ratio

This stocks and bonds video tutorial explains how to calculate the dividend payout ratio and the retention ratio. The payout ratio is equal to the total dividends paid divided by the net income. The retention ratio is equal to the earnings retained divided by the net income. My Website:

From playlist Stocks and Bonds

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Converting Measures

This video is about Converting Units

From playlist Ratios and Rates

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Decision Tree 4: Information Gain

Full lecture: http://bit.ly/D-Tree After a split, we end up with several subsets, which will have different values of entropy (purity). Information Gain (aka mutual information) is an average of these entropies, weighted by the size of each subset.

From playlist Decision Tree

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Lecture 14 | Introduction to Robotics

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From playlist Lecture Collection | Introduction to Robotics

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1. Introduction and Basic Concepts

MIT Electronic Feedback Systems (1985) View the complete course: http://ocw.mit.edu/RES6-010S13 Instructor: James K. Roberge License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu

From playlist MIT Electronic Feedback Systems (1985)

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3. Introduction to Systems with Dynamics

MIT Electronic Feedback Systems (1985) View the complete course: http://ocw.mit.edu/RES6-010S13 Instructor: James K. Roberge License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu

From playlist MIT Electronic Feedback Systems (1985)

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8. Compensation

MIT Electronic Feedback Systems (1985) View the complete course: http://ocw.mit.edu/RES6-010S13 Instructor: James K. Roberge License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu

From playlist MIT Electronic Feedback Systems (1985)

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Special Topics - The Kalman Filter (18 of 55) What is a Covariance Matrix?

Visit http://ilectureonline.com for more math and science lectures! In this video I will explain what is the state covariance matrix, process noise covariance matrix, and measurement covariance matrix. Next video in this series can be seen at: https://youtu.be/ieL0jxzLhCE

From playlist SPECIAL TOPICS 1 - THE KALMAN FILTER

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EEVblog #49 - Decibels (dB's) for Engineers - A Tutorial

Are you a pessimist or an optimist? Dave explains dB's and how they are useful for us engineering types.

From playlist Electronics Tutorials

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Multiple Timescales of Neuronal Computation - Adrienne Fairhall

2015 Joshua Lederberg - John von Neumann Symposium "Towards Quantitative Biology" Adrienne Fairhall University of Washington, Seattle December 2, 2015 https://www.sns.ias.edu/scsb/lederberg-vonneumann2015 More videos on http://video.ias.edu

From playlist Joshua Lederberg - John von Neumann Symposium

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Ratios Introduction - what are ratios?

Ratios are used to compare different quantities. In this introduction to ratios we will look at what ratios are, how we deal with ratios of different measurement units and that ratios can be simplified. To donate to the tecmath channel:https://paypal.me/tecmath To support tecmath on Pa

From playlist Ratios

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Electrical Engineering: Ch 15: Frequency Response (3 of 56) What is a Transfer Function: 3 of 3

Visit http://ilectureonline.com for more math and science lectures! In this video I will explain the 4 different types of transfer function: voltage gain, current gain, transfer impedance, and transfer admittance. http://www.ilectureonline.com/donate https://www.patreon.com/user?u=323607

From playlist ELECTRICAL ENGINEERING 15 FREQUENCY RESPONSE

Related pages

Entropy (information theory) | Decision tree learning | Mutual information