rwilson4

9 ms·

31.
Bayesian A/B Testing Considered Harmful(adventuresinwhy.com)
1 points by rwilson4 5y ago|1 comments
32.
by rwilson4 5y ago
Gill's book, Bayesian Methods, is even more dismissive, and even hostile towards Frequentist methods. Whereas I've never seen a frequentist book dismissive of Bayes methods. (Counterexamples welcome!) It boils down to whether you
33.
by rwilson4 5y ago
My understanding is that the evolution of the wave function is deterministic. Upon measurement, the wave function collapses to an eigenstate of the measurement operator. Which eigenstate is observed is random, with probability based on the
34.
by rwilson4 5y ago
You're absolutely correct, proper A/B testing has many engineering challenges!
35.
by rwilson4 5y ago
The data generating process is the random assignment of people to experiment groups. The potential outcomes are fixed: if a person is assigned to one group the outcome is x1; if another, x2. No assumption is made about these potential outco
36.
by rwilson4 5y ago
I agree, but that's not the whole story. A/B testing isn't just for identifying the best option, it's for figuring out how much opportunity there is in a particular facet of your business. If you try a few reasonable des
37.
by rwilson4 5y ago
The author discusses "pull forward", where the real impact of a change is to make people purchase earlier, but we don't necessarily observe incremental purchases. This isn't necessarily bad; I'd rather have a dollar
38.
Yaglm: A Python package for regularized linear models(github.com)
5 points by rwilson4 5y ago|0 comments
39.
by rwilson4 5y ago
Correlation typically means y is a linear function of x, but people usually interpet it (incorrectly) as: knowing x tells you something about y. If y = x^2, then y is determined completely by x, but since it's nonlinear the correlation
40.
by rwilson4 5y ago
If the relationship is linear, I'm guessing a test based on Pearson has greater power.
41.
by rwilson4 5y ago
Sure, or Nesterov's accelerated gradient descent or something. I'm just not sure what the authors mean by "cheap iterations". Update: your other comment clarified this for me. It's cheap relative to other methods th
42.
by rwilson4 5y ago
Theoretically yes, but: typically with neural networks, and esp. deep networks with millions or billions of parameters, 2nd order methods which require calculating and factoring the matrix of 2nd derivatives are prohibitively expensive. 1st
43.
by rwilson4 5y ago
This is an approach for solving convex optimization problems. An optimization problem is when you want to find the best option, or the fastest, or the most profitable. If you're asking questions with superlatives (most, best, fastest),
44.
by rwilson4 5y ago
"Cheap iterations" led me to expect a 1st order method, not requiring computing the matrix of 2nd derivatives, which is the bottleneck in large systems. But this does indeed rely on the Hessian, so I'm not sure what makes the
45.
by rwilson4 5y ago
Haven't read the paper yet, but Boyd and Vandenberghe's book, Convex Optimization, is available for free on the authors' website and covers all the foundational material. Update: I've skimmed the paper and here's th
46.
by rwilson4 5y ago
Have you considered a .dir-locals.el file?
47.
by rwilson4 5y ago
I use elpy regularly for python development. Handles virtualenvs really well, makes it super easy to run one or all test cases. Good support for linting and reformatting (black). I should note that I don't work on large codebases. My c
48.
by rwilson4 5y ago
Working in marketing has made me (sadly) realize these articles are meaningless. Articles like this don't mean the recommended brands are the best. It just means those brands paid to be recommended.
49.
by rwilson4 5y ago
For anyone else who had no idea what OP was doing with storm petrels: https://en.m.wikipedia.org/wiki/Bird_ringing
50.
by rwilson4 5y ago
I recently bought a Kinesis Advantage 2. Could you be more specific about how you've mapped Ctl and Option? I mapped Delete and End in the left thumb cluster to Ctl and Option resp. What did you do?
51.
by rwilson4 5y ago
People with kids. My daughter's preschool is more expensive than my college was!
52.
by rwilson4 5y ago
The intellectual honesty one hits hard. A luxury indeed!
53.
by rwilson4 6y ago
I'm really curious about this possibility. How would we prove or disprove this?
54.
Unshackle Yourself from Statistical Significance(adventuresinwhy.com)
4 points by rwilson4 6y ago|0 comments
55.
by rwilson4 6y ago
“The Book” is the hypothetical collection of “best” proofs for each theorem. “God’s favorite proofs” if you will.
56.
by rwilson4 6y ago
Any recommendations on QCD textbooks for Physics grad students? I left that field a while back but I had always hoped to understand it, beyond just hand-wavy explanations.
57.
by rwilson4 6y ago
“Many learning tasks” is a wiggle term. Sure, edge cases exist, but the methods do work impressively well in many cases.
58.
by rwilson4 7y ago
Also, if you don’t mind me asking, what kind of support from your manager would be helpful in this situation?
59.
by rwilson4 7y ago
I like that! I’ll think about how I could incorporate it. Thanks!
60.
by rwilson4 7y ago
That may be their perspective, true! But if so I would consider that a red flag indicating burn out. Why are they so worried about deliverables? Do they feel the timelines are too aggressive? Are they really so overloaded they can’t take 20

More ›