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David Ellis
Attended Texas Tech
Lives in San Antonio
2,167 followers|29,557 views
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David Ellis

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Recently, Quandl interviewed a senior quantitative portfolio manager at a large hedge fund. We spoke about how she builds trading strategies–how she transitions from an abstract representation of the market to something concrete with genuine predictive powers. Can you tell us how you design new trading strategies? It all starts with a hypothesis. I Continue Reading
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Truth!

David Ellis

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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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David Ellis

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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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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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David Ellis

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Just when we thought the absurdity that marks every single day of Obama's reign could not possibly be surpassed, we learned that 4 hours (3 hours and 47 minutes to be precise) after the US president vowed to sign a new law banning bulk data collection by the NSA (named, for purely grotesque reasons, the "USA Freedom Act"), the Obama administration asked the secret Fisa surveillance court to ignore a federal court that found bulk surveillance ille...
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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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David Ellis

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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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David Ellis

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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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David Ellis

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People
Have him in circles
2,167 people
Brandon Smith's profile photo
Matt Sornson's profile photo
Dominik Richter's profile photo
Paul O'Day's profile photo
Nathan Wiegand's profile photo
Peter Fields's profile photo
Julia K Szopa's profile photo
Cristóbal Morales's profile photo
Fraser Harris's profile photo
Education
  • Texas Tech
    Computer Science, 2008 - 2010
  • West Texas A&M University
    Computer Science, 2002 - 2006
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Gender
Male
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Occupation
Programmer
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Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Currently
San Antonio
Previously
Links
David Ellis's +1's are the things they like, agree with, or want to recommend.
Pippo : Pippo
www.pippo.ro

Micro Java Web Framework

Obama Goes Full Stalin: Tells Secret Court To Ignore Law He Signed 4 Hou...
www.zerohedge.com

Just when we thought the absurdity that marks every single day of Obama's reign could not possibly be surpassed, we learned that 4 hours (3

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