hcrisp

49 ms·

481.
Caterpillar digs into data analytics(fortune.com)
1 points by hcrisp 12y ago|0 comments
482.
The race to the Internet of things(fortune.com)
2 points by hcrisp 12y ago|0 comments
483.
by hcrisp 12y ago
> ... different domains use different names ... I agree. In engineering, many of these algorithms can be coded using digital filters. Here's the exponential weighted variance: import scipy.signal as dsp import numpy as np
484.
by hcrisp 12y ago
I' more impressed with the agile ability of the technology. But it does remind me of the mechanical hound from Ray Bradbury's Fahrenheit 451. "The mechanical Hound slept but did not sleep, lived but did not live in its gentl
485.
by hcrisp 12y ago
Sounds similar to an exponential moving average[1], which itself is a one-pole IIR digital filter. [1] http://en.wikipedia.org/wiki/Moving_average#Exponential_movi...
486.
LowClass Python: Style Guide for Data Scientists(columbia-applied-data-science.github.io)
2 points by hcrisp 12y ago|0 comments
487.
by hcrisp 12y ago
Relevant article by Francesc Alted, creator of PyTables: "Why Modern CPUs Are Starving And What Can Be Done About It". http://www.pytables.org/docs/CISE-12-2-ScientificPro.pdf
488.
by hcrisp 12y ago
Good news about the PySpark input format improvements. Does that also cover reading complex Parquet datatypes into SchemaRDDs with their native datatypes? When can we get a Databricks Cloud account (I'm already on the waiting list)?
489.
by hcrisp 12y ago
Yes, I second the Jazz recommendation. They are as good as, if not better than, Honeycrisp, and usually cheaper. SweeTango was supposed to rival Honeycrisp, but never lived up to the expectation, IMO.
490.
by hcrisp 12y ago
Honeycrisp are amazing. So are Jazz, if you can find them. Our local grocer has many interesting kinds. Also, read Michael Pollan's "The Botany of Desire" for a more in-depth treatment of apple biodiversity vs. the market
491.
by hcrisp 12y ago
"(The stars) remind us of the puny distances we men travel; the nearest one, Alpha Centauri, is four light-years away, far beyond our capability to visit today or in our lifetime, yet beckoning, mocking us and our dreams." - Mike
492.
by hcrisp 12y ago
Another alternative is water filters. This is used in Brazil by Neymar-backed Waves For Water (90k filters) and Project AmaZon (10k filters). The latter filter design uses cheap sedimentary layers inside a framed structure. Pour the turb
493.
by hcrisp 12y ago
"Understanding Digital Signal Processing" by Richard Lyons should also be mentioned. Not free, but probably the best text for grasping the concepts of DSP. As a mechanical engineer his style and illustrations really clicked with
494.
by hcrisp 12y ago
How does Snappy compression fit into the picture?
495.
by hcrisp 12y ago
I thought the same. My friend introduced me to RoboRally with the words, "you'll enjoy this, since it is all about programming." I'll have to check out Robot Turtles with my 4 year old.
496.
by hcrisp 12y ago
Isn't this putting all your eggs in one basket?
497.
by hcrisp 12y ago
Thanks, that helps. I've always wondered what the variables of the state vector were -- position, velocity, etc. it appears from the link that it could be a 6x6 of those two (position, velocity in x, y, and z), or a 9x9 when includin
498.
by hcrisp 12y ago
Wasn't it the PGNCS that had the Kalman filter? See my comment nearby which confused it with AGC.
499.
by hcrisp 12y ago
Isn't it true that the AGC was initially designed to be the sole navigation computer, but when the implementation did not meet the requirements for accuracy (due to accelerometer and gyroscope drift), they switched to a ground-based ra
500.
by hcrisp 12y ago
My dad often said, "Fits like a fist in an eye". So he was right or wrong depending on your point of view.
501.
by hcrisp 12y ago
Reminds me of this joke. Apologies for any hurt feelings. "A perfect world is where the British are the police, the Germans are the engineers, and the French are the cooks. A worst-case world is where the British are the cooks, the G
502.
by hcrisp 13y ago
I nominate this author as the Fred Brooks of the 21st century. (Brooks wrote "Mythical Man Month"). These depictions of organizational sickness are spot on. I look forward to hearing more. The Carcinogenic Prototype is what Bro
503.
by hcrisp 13y ago
A good companion book is "How Apollo Flew to the Moon", by W. David Woods. It fills in a lot of the technical detail that other Apollo space program books omit, without forgetting the human dimension. Amazing effort by a man who
504.
by hcrisp 13y ago
John Aaron saved the Apollo 12 mission with four words, "Try SCE to AUX". And entered the history books as the best controller of the Apollo era. http://www.universetoday.com/98484/this-day-in-space-history.
505.
by hcrisp 13y ago
I have a Vaio that had a loud fan speed problem. I found a post online that said to go to the Windows advanced power settings and set the CPU power to 99% to make it slow down. It actually worked. Something about not letting the Intel Du
506.
by hcrisp 13y ago
This is probably not what you are thinking, but C.S. Lewis said, "Any fool can write learned language: the vernacular is the real test. If you can't turn your faith into it, then either you don't understand it or you don&#x27
507.
by hcrisp 13y ago
I believe they showed this on PBS in an episode of The Elegant Universe. http://youtu.be/4yyb_RNJWUM
508.
by hcrisp 14y ago
Fascinating article.
509.
by hcrisp 14y ago
C.S. Lewis? "Any fool can write learned language: the vernacular is the real test. If you can't turn your faith into it, then either you don't understand it or you don't believe it."
510.
Autonomy Founder Mike Lynch Contests H-P Allegations(blogs.wsj.com)
2 points by hcrisp 14y ago|0 comments

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