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David Ellis
Attended Texas Tech
Lives in San Antonio
2,224 followers|27,743 views
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Truth!

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A basic mantra in statistics and data science is correlation is not causation, meaning that just because two things appear to be related to
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The Constitution designs a system of checks and balances for our nation, and executive amnesty for illegal immigrants unilaterally decreed from the White House would seriously undermine the rule of law. Our founders repeatedly warned about the dangers of unlimited power within the executive branch; Congress should heed those words as the President...
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Ah ha! It turns out that the reason bootstrap samples have to be the same size as the original sample is to ensure independence.
Confidence Intervals Based on Resampling
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Rob Pike's 5 Rules of Programming. Rule 1. You can't tell where a program is going to spend its time. Bottlenecks occur in surprising places, so don't try to second guess and put in a speed hack until you've proven that's where the bottleneck is. Rule 2. Measure. Don't tune for speed until ...
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David Ellis

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Stitch Fix is a full-stack startup creating unique solutions in data-driven merchandising, massively scaled personal styling, and complex logistics.
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Movie industry lobbyists at the MPAA are trying to resurrect SOPA-style web censorship via a back door. Let's defeat online censorship again. Tell the MPAA to kill the #ZombieSOPA. https://takeaction.withgoogle.com/g-stop-mpaa
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Rambles around computer science. Diverting trains of thought, wasting precious time. Tue, 07 Oct 2014. Seven deadly sins of talking about “types”. My essay “In Search of Types” attempts to be a dispassionate review of some of the different concepts, purposes and attitudes surrounding the word ...
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This is my support/on-call week. Someone needs to invent a 5-Hour Energy for morale, I need one.
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This is so awesome.
Body language affects how others see us, but it may also change how we see ourselves. Social psychologist Amy Cuddy shows how “power posing” -- standing in a posture of confidence, even when we don’t feel confident -- can affect testosterone and cortisol levels in the brain, and might even have an impact on our chances for success.
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People
Have him in circles
2,224 people
vanessa anjos's profile photo
Andre Kajita's profile photo
Brad Langhorst's profile photo
Aaron Lee's profile photo
Hans J Schroeder's profile photo
Michael Keenan's profile photo
AZEEM SAJJAD DOGAR's profile photo
Trip Horton's profile photo
Tj Vanderpoel (bougyman)'s profile photo
Education
  • Texas Tech
    Computer Science, 2008 - 2010
  • West Texas A&M University
    Computer Science, 2002 - 2006
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Male
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Programmer
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Currently
San Antonio
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David Ellis's +1's are the things they like, agree with, or want to recommend.
Stitch Fix Technology
technology.stitchfix.com

Stitch Fix is a full-stack startup creating unique solutions in data-driven merchandising, massively scaled personal styling, and complex lo

AngularJS Articles, Workshops and Developers
www.airpair.com

One of the best collections of #AngularJS Articles, Live Workshops and Developers on the web

Avoiding a Common Mistake with Time Series | Silicon Valley Data Science
svds.com

A basic mantra in statistics and data science is correlation is not causation, meaning that just because two things appear to be related to

Monoids, Functors, Applicatives, and Monads: 10 Main Ideas
monadmadness.wordpress.com

I'm making this post because after spending months learning about all the different properties of monoids, functors, applicatives, and monad

Obama Is Not a Monarch
www.politico.com

The Constitution designs a system of checks and balances for our nation, and executive amnesty for illegal immigrants unilaterally decreed f

ObamaCare Architect Admits "Lack Of Transparency" Is Huge Advantage Agai...
www.zerohedge.com

Caught on tape: “Lack of transparency is a huge political advantage,” Gruber said. “And basically, call it the stupidity of the American vot

0a explains: Calculus (with pics and gifs)
0a.io

Calculus explained with pics and gifs. Written in possibly (hopefully) the most comprehensible way for anyone who is new to limit, different

Confidence Intervals Based on Resampling
www.stat.wmich.edu

Confidence Intervals Based on Resampling

Rambles around computer science
www.cl.cam.ac.uk

Rambles around computer science. Diverting trains of thought, wasting precious time. Tue, 07 Oct 2014. Seven deadly sins of talking about “t

11 Ways You Know You Live In A Country Run By Idiots | Zero Hedge
www.zerohedge.com

Leading news site for global finance, economics, market, and political analysis.

SaaS Product Validation Techniques
ryanbattles.com

Product validation is the crucial foundation for building a successful startup, a process that cannot be taken lightly.

Hacker News
news.ycombinator.com

Ask HN: I was hired and unhired in 2 weeks, for no reason – I am fucked. 84 points by guybrushT 42 minutes ago | 42 comments. 3. Show HN: HN

Gaussian Quadrature | Austin G. Walters
austingwalters.com

Gaussian Quadrature can be used to approximate an integral, I have done a comparison on different quadrature methods previously. However, I

Rob Pike's 5 Rules of Programming Rule 1. You can't tell where a ...
users.ece.utexas.edu

Rob Pike's 5 Rules of Programming. Rule 1. You can't tell where a program is going to spend its time. Bottlenecks occur in surprising places

An Introduction to Gradient Descent and Linear Regression
spin.atomicobject.com

The gradient descent algorithm, and how it can be used to solve machine learning problems such as linear regression.

An algebra and a calculus | The Endeavour
www.johndcook.com

One generation develops an area of math and a second generation comes along to tidy up the definitions. Sometimes this leads to odd vocabula