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metaobject

555 karma · joined April 5, 2011

Working as a software engineer using C, C++, Python, Scheme on simulation and optimization tools and applications in the meterology/satellite data processing/atmospheric sciences domain. I'm fond of the Lisp family of languages, and am currently working on Scheme-bindings for our modeling, simulation, and analysis tools.
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metaobject··on Color Night Vision (2016) [video]
I'm aware HST has a relatively small diameter (2.4m), but how much of its resolving power (for lack of a better phrase) can be attributed to it being above the atmosphere? I've also heard that modern adaptive optics systems do a good job of mitigating atmospheric effects (turbulence?) for ground based telescopes -- I wonder if a ground-based "Hubble deep field" image could be generated?
metaobject··on Blink-dev – Intent to Ship: SharedArrayBuffer
I think he's talking about Java
metaobject··on Build Your Own Text Editor
I've spent enough time tweaking, extending, and rewriting emacs lisp that I sometimes feel like I wrote my own emacs.
metaobject··on A semantic model for a substantial fragment of C
It's interesting that GCC requires -Wall whereas clang issues the warning by default. I wonder how many "bugs" could be caught early if GCC just issued the warning by default as well (for folks who don't religiously use -Wall)?
metaobject··on Henry Rollins on defining success
"it's important to note that the scene was very much about positive influence alongside self-empowerment and promotion. Bands in the scene were entrepreneurial both in their songs and their existence."

I grew up in the punk/hardcore scene in the D.C. area many years ago and this statement definitely held true. One thing I noticed was that most of the kids I used to hang out with ended up being fairly high-achieving adults. Most everyone has their undergrad degree and many of them actually work in software engineering. Now when we talk, we talk about Linux, Python and C++ in addition to recalling old shows at 9:30 Club, Wust, and the Safari Club.

metaobject··on Sea Ice Extent Sinks to Record Lows at Both Poles
And the account is 13 hours old - which adds to the suspicion
metaobject··on Sea Ice Extent Sinks to Record Lows at Both Poles
What's so natural about extracting large pockets of carbon deposits (which took millions of years to form) and releasing it into the atmosphere over an extremely short period (~150 years)?
metaobject··on Thousands of underground gas bubbles poised to 'explode' in Arctic
I apologize for not watching the video, but what sort of effects will these increased levels have on humans, plants, and other life on the planet? It doesn't sound like it would be beneficial.
metaobject··on CERN experiment discovers five new particles
I'm guessing shmageggy thought the notation was Big-O notation. It's a bit of CS notation that defines an upper bound on the number of operations for an algorithm as a function of input size.

I don't know enough about particle physics to know whether you and him/her are even remotely close to saying the same thing.

metaobject··on Losing a dog can be harder than losing a relative or friend
A few years ago we had to put down our first family dog due to an previously-unknown spinal disorder. It was fucking gut wrenching for me to make the decision. I recall thinking that there are family members (cousins, maybe an uncle or two) that would upset me less upon their passing.
metaobject··on Immersive Linear Algebra – textbook with fully interactive figures (2015)
Holy shit. I wish I'd had access to these videos during my Mattix Algebra (I think it was called) course in undergrad. I feel like my lack of truly understanding LA has somewhat impaired my grasp of some of the other topics covered in CS undergrad and grad school.
metaobject··on White House rolls back protections for people in default on student loans
You say you don't know anything about his situation but then you go on to heavily speculate about his situation.

I'm in your situation btw. I worked through undergrad and grad school and had my work pay for almost all of my school so I never had any debt. But I realize I was lucky and had a good situation lined up and not everyone has the same opportunities. Some people need more assistance than others, and I don't mind if the govt helps those folks out.

metaobject··on Ask HN: Best books on AI?
It's both, but the AI coversge is quite out of date.
metaobject··on Ask HN: Best books on AI?
PAIP is also very, very high on my list as well. I'm very pro-lisp and still develop new projects in lisp (CL, Scheme) and promote it when/where I can. But the person who picks up PAIP wanting to learn AI might not necessarily want to worry about picking up lisp programming skills at the same time (nor is learning lisp strictly necessary). This is why AIMA is still the best option, IMO, because it employs a language agnostic approach.
metaobject··on Show HN: Nomouse
I'd love to use emacs key bindings to browse the web. Anyone have good suggestions?
metaobject··on Ask HN: What does your production machine learning pipeline look like?
Perhaps they don't have the metadata for the data?
metaobject··on R Passes SAS, but Python Leaves Them Both Behind
Mostly agree, but I've also seen a fair bit of C/C++ skills associated with jobs involving *nix development environments. I've rarely seen C++ associated with embedded jobs (even though I've read that it can certainly be used if care is taken to avoid things like dynamic dispatch, etc)
metaobject··on If the Moon Were Only 1 Pixel – A tediously accurate map of the solar system
Your statement may still be correct, though.
metaobject··on White House proposes steep budget cut to NOAA
But doesn't even Accuweather, at least on some level, get their source data from government sources? If they generate their own forecasts using NWP models they still need initial conditions which usually come from from coarse-grid weather forecasts provided by the governments.

If the quality of these coarse-grid forecasts is degraded it's going to have an effect on all downstream processing/forecasts.

metaobject··on White House proposes steep budget cut to NOAA
"Is it so bad to cut funding to rebellious agencies?"

If the agency provides a vital service to the country, I'd say it is bad to punish the country by cutting their funding just because an employee in that agency leaked a document.

metaobject··on White House proposes steep budget cut to NOAA
Certainly they believe that weather exists? Cuts to NOAA won't just affect climate change research but will affect weather forecasts, hurricane forecasts, severe weather forecasts, etc.

Mr. Trump is a pathetic excuse for a president.

metaobject··on Mathematical Notation in Emacs
I'm not sure I could ever write code in a non-fixed-width font. Maybe if I wrote every line perfectly and never had to navigate back a few lines to make adjustments. But then again, I spend a non-trivial amount of time lining code/variables up and making things just right before moving on that a variable-width font would probabky drive my OCD (Obsessive Code Disorder) levels up to 11.

I don't even want to see what happens when you mark a region and call M-x align in a variable width font.

metaobject··on Tell HN: WarGames (1983) is mind-blowing
And then track down a Sony Betamax player and transfer the VHS tape to Beta and watch it like that until the tape degrades and ends up unwinding inside the machine and you have to take the machine apart to detangle the mess from the record/playback heads.
metaobject··on The Collapse of the Unix Philosophy
"This could get the same treatment as /etc/passwd if it becomes a burden. In the meantime, if it's a performance bottleneck, make a memoizing function to lookup groups and use a '-n' switch to ls."

Exactly, and this is the sort of thing that can be done with open source software. It may not even be a lot of code depending on how it is approached.

metaobject··on The Collapse of the Unix Philosophy
Perhaps the issue when comparing Windows and Linux is more one of "dependency management" than just merely installing applications or libraries? Although I've had issues with package managers screwing up dependencies in the past, it hasn't happened in a while and when it would have happened I was warned beforehand.
metaobject··on Like startups, most intentional communities fail. Why?
It actually looks nicely formatted and sized on my phone. Are you on desktop?
metaobject··on Why Amazon's data centers are in spy country (2016)
But there seems to be a recent surge in data center construction in the area, with something like 7 (?) new DCs being built right now.
metaobject··on Robert Mercer: the big data billionaire waging war on mainstream media
Up their game by enlisting the help of a foreign nation to help stand up an entire group of social network trolls whose entire mission is to muddy the waters and push fabricated stories?
metaobject··on Machine Learning from scratch: Bare bones implementations in Python
In your RandomForest implementation, on the line in fit() where you're building the training subsets to give to each tree, it appears that your bagging approach doesn't use 'sampling with replacement' strategy.

    idx = np.random.choice(range(n_features), size=self.max_features, replace=False)   
It would appear that the replace=False prevents the 'sampling with replacement' behavior usually implemented by bagging algorithms. Should the replace=False be changed to replace=True?
metaobject··on Id Software Programming Principles
I've seen projects fail for a variety of reasons. A few fall under scenario you described. But, I've also seen quite a few projects succeed by making use of in-house developed libraries and frameworks. It probably more depends on who is on the team than whether or not the code is written to be generic enough to apply to other problems.

e: fixed typo

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