Mastodawn

http://financemetrics.scienceontheweb.net Maximising the value of a portfolio. Calculating #Variance, #CoVariance and portfolio Variance using the magic of Matrix Algebra. Calculations feature 5 ftse stocks, BP, Vodafone, UU.L, Tesco and Morrison. Detailed exposition leads one through x transpose multiplied b x. #MatrixAlgebra

FinancialAnalysis

solobsd Oct 4

Universal rulebook alert! 📖 Einstein’s Principle of Covariance says physics works the same everywhere—Earth, rockets, or black holes! 🌌 Spacetime bends, but the laws hold tight! #Covariance #Relativity #Physics

Dr Mircea Zloteanu 🌺🌞🍃Apr 28, 2025

#statstab #331 A geometric interpretation of the covariance matrix

Thoughts: Does this help interpretation? What do people think?

#covariance #dataviz

https://www.visiondummy.com/2014/04/geometric-interpretation-covariance-matrix/

A geometric interpretation of the covariance matrix

In this article, we provide a geometric interpretation of the covariance matrix, exploring the relation between linear transformations and data covariance.

Computer vision for dummies

Dr Mircea Zloteanu 🌺🌞🍃Aug 27, 2024

#statstab #167 How would you explain covariance?

Thoughts: Cov explained simply (link1) and complexly (link2).

#covariance #correlation #teaching #education

https://stats.stackexchange.com/questions/18058/how-would-you-explain-covariance-to-someone-who-understands-only-the-mean

https://stats.stackexchange.com/questions/221962/understanding-that-operatornamecovx-x-operatornamevarx-intuitively/222091#222091

How would you explain covariance to someone who understands only the mean?

...assuming that I'm able to augment their knowledge about variance in an intuitive fashion ( Understanding "variance" intuitively ) or by saying: It's the average distance of the data va...

Cross Validated

JMLR Jul 13, 2024

'Generalized Independent Noise Condition for Estimating Causal Structure with Latent Variables', by Feng Xie, Biwei Huang, Zhengming Chen, Ruichu Cai, Clark Glymour, Zhi Geng, Kun Zhang.

http://jmlr.org/papers/v25/23-1052.html

#causal #causally #covariance

Generalized Independent Noise Condition for Estimating Causal Structure with Latent Variables

Habr Apr 23, 2024

Где мне это пригодится в жизни или применение Nothing в Kotlin на примере

В данной статье я хочу показать, почему развитая система типов в языке программирования это здорово. Я попробую провести небольшой ликбез о таких на первый взгляд сложных вещах, как sealed-иерархии, ковариантность и тип Nothing на понятном практическом примере создания своей реализации типа из функционального программирования Either.

https://habr.com/ru/articles/809711/

#kotlin #системы_типов #функциональное_программирование #either #ковариантность #covariance #nothing

Где мне это пригодится в жизни или применение Nothing в Kotlin на примере

О чем эта статья? В данной статье я хочу показать, почему развитая система типов в языке программирования это здорово. Я подробно расскажу как устроен класс Either из библиотеки Arrow , разберу...

Хабр

Ahmed Tarek Jan 20, 2024

🤔 Invariance, Covariance, and Contravariance in .NET C# 🤷‍♂️

➡️ If it is so hard on you to really understand this topic, don’t feel ashamed of it, you are not alone.

➡️ It happened to me and many other developers. I even know experienced developers who are using them but still can’t understand them well enough.

➡️ However, this is the past. In this article, you are going to understand it once and for all.

Before jumping to the article, consider subscribing to the newsletter to get useful content delivered directly to your inbox 😀

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Invariance, Covariance, and Contravariance in .NET C#

https://www.developmentsimplyput.com/post/variance-invariance-covariance-contravariance-dotnet

If you like the content, make sure others know about it 😉

#dotnet #variance #covariance #contravariance #invaraince

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Ahmed Tarek Jan 20, 2024

🤔 Invariance, Covariance, and Contravariance in .NET C# 🤷‍♂️

➡️ If it is so hard on you to really understand this topic, don’t feel ashamed of it, you are not alone.

➡️ However, this is the past. In this article, you are going to understand it once and for all.

Invariance, Covariance, and Contravariance in .NET C#

https://www.developmentsimplyput.com/post/variance-invariance-covariance-contravariance-dotnet

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#dotnet #variance #covariance #contravariance #invaraince

Variance, Invariance, Covariance, and Contravariance

Simple explanation of Invariance, Covariance, Contravariance in DotNet (.NET) C#

DevelopmentSimplyPut

Show thread

Fractal Kitty Nov 4, 2023

update - we have covariances and a centriod for this unique porthale behavior going on in salem, oregon

https://porthales-of-salem.glitch.me/

- still thinking about if I should be done or make a wrapper website. The goal is to spark creativity in my community - write, think, discuss what would happen if you so choose to go into the porthale (portal +porthole)

#covariance #mathart #RPG #salemOregon

New Submissions to TMLR Aug 27, 2023

Towards fully covariant machine learning

https://openreview.net/forum?id=gllUnpYuXg

#symmetries #symmetry #covariance

Towards fully covariant machine learning

Any representation of data involves arbitrary investigator choices. Because those choices are external to the data-generating process, each choice leads to an exact symmetry, corresponding to the...

OpenReview