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daleroberts

374 karma · joined February 8, 2009

Inventor of useless things. http://www.github.com/daleroberts
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daleroberts··on Use scripts as rule actions in Mail on Mac
At my university we use Moodle and that lets me setup a page where students can schedule one-on-one appointments with me (during office hours). When a student books a time, Moodle sends me an email with the details.

I use a rule and an Applescript to scrape the details from the email and put the booking into my calendar.

daleroberts··on Poisson's Equation
Here is my implementation in python of the Poisson equation on an arbitrary 2D domain using the finite element method. I used this for teaching a course in partial differential equations:

https://github.com/daleroberts/poisson

daleroberts··on Show HN: I wrote a rust program to translate images into textual line art
Something similar in Python: https://github.com/daleroberts/tv
daleroberts··on imgcat: higher resolution
You can take the concept even further. I made this about 4 years ago now: https://github.com/daleroberts/tv
daleroberts··on Collection of Jupyter notebooks for quantitative finance
Also useful is a Quant finance cheat sheet if you are going to sit an exam:

https://github.com/daleroberts/math-finance-cheat-sheet

daleroberts··on R is a joy if you treat it like Awk
This has been done in the Python ecosystem with matplotlib:

https://github.com/daleroberts/itermplot

daleroberts··on iTerm2 3.3
Thanks, that was cool hearing about your use of itermplot :-)

https://github.com/daleroberts/itermplot

daleroberts··on Show HN: GNUplot with sixel – Mix images, ANSI colors and plots
For Matplotlib, checkout this: https://github.com/daleroberts/itermplot
daleroberts··on Show HN: The worst ANSI renderer, except for all the others
You can get even better rendering quality if you are willing to use Unicode 9.0 characters: https://github.com/daleroberts/tv
daleroberts··on Bandit Algorithms Book [pdf]
Cool, nice to see that Tor was a student at ANU.
daleroberts··on Show HN: Browsh – A modern, text-based browser
If you have iTerm2, you might like:

https://github.com/daleroberts/bv

https://github.com/daleroberts/itermplot

daleroberts··on Show HN: Browsh – A modern, text-based browser
Or this one: https://github.com/daleroberts/tv
daleroberts··on GIF for CLI
If you like this project then you might like these ones.

Image visualisation in terminal using Unicode 9 and True Color:

https://github.com/daleroberts/tv

Image visualisation for iTerm2:

https://github.com/daleroberts/bv

Matplotlib graphics and animation in iTerm2:

https://github.com/daleroberts/itermplot

daleroberts··on ASCII Art: Real-Time ASCII Art Rendering Library
A simple lookup table also works well.

Here I use Unicode 9.0 and True Color support to render images as text using Python: https://github.com/daleroberts/tv

daleroberts··on Ask HN: Projects that don't make you money but you're doing it out of sheer joy?
Practicing to make kids == sheer joy?
daleroberts··on Australia has the most expensive energy bills
What I've heard from people installing solar at home is that even though you install solar and a battery, you are not allowed to disconnect from the network unless you are a rural property.

can anyone confirm this?

daleroberts··on Fireflies
This is fasinating topic, I recently tried to understand what happens to this type of model if you perturb it with heavy-tailed noise.

http://www.sciencedirect.com/science/article/pii/S0378437116...

daleroberts··on Mapping Australia’s Coast with Landsat Satellite Imagery
VIIRS DNB Nightly Mosaics can be found here:

https://ngdc.noaa.gov/eog/download.html

The Visible Infrared Imaging Radiometer Suite Day-Night Band (VIIRS DNB) images the entire Earth nightly at a resolution of about 750 meters. Suomi NPP orbits the Earth 14 times per day on a 16-day repeat cycle. The average time at which images are taken is near 01:30 in local solar time, but can vary by over an hour depending on latitude and the particular cycle.

daleroberts··on Mapping Australia’s Coast with Landsat Satellite Imagery
This is exactly what I was hinting at: IEEE journals (TGRS, etc.) are filled with deep learning and machine learning on satellite imagery papers.

They are more tech focused journals and have less impact.

daleroberts··on Mapping Australia’s Coast with Landsat Satellite Imagery
If we used deep learning then we probably wouldn't have got into the journal 'Remote Sensing of Environment'

To get into top journals it is really about simple method + novel idea + good story.

The same holds for top Finance journals like 'Journal of Finance', etc.

daleroberts··on Mapping Australia’s Coast with Landsat Satellite Imagery
Only a cheap trick, but a useful one :-)
daleroberts··on Mapping Australia’s Coast with Landsat Satellite Imagery
Even cooler is when you take landsat-util and visualise results directly in your terminal, see here:

https://github.com/daleroberts/tv

daleroberts··on Mosh v1.3 Released
Still no true color support? :-(
daleroberts··on Geological Insights from Malaysia Airlines Flight MH370 Search
Hello from ANU! I've actually been collaborating on a number of projects with GA the last couple of years :-)
daleroberts··on Geological Insights from Malaysia Airlines Flight MH370 Search
Really nice article, my mind is always blown by all the cool shit we keep on learning about our Earth.

And then the article became all the more sweeter when I realised that it all this work was done by people I know at Geoscience Australia. Very cool.

daleroberts··on “Australians First”: Australia abolishing 457 temporary skilled worker visa
In regards to the DFG funding it says that foreigners are allowed "provided they have been resident in Germany for several years and have completed at least three years of scientific work as a doctoral or postdoctoral researcher in the German research system".

And from my understanding that is what replacement 457 will ensure.

"A DECRA Recipient may be awarded ARC funding of up to $139,369 per year of funding. The per annum salary contribution from the ARC is fixed at $99,369 (2016$), including 30 per cent on-costs, and up to a maximum of $40,000 project costs." - From ARC funding rules for DECRA.

So basically, close to $100K per annum goes to you (pre-tax) for 3 years and $30K to the university per annum. For project costs it depends on how you spend them.

daleroberts··on “Australians First”: Australia abolishing 457 temporary skilled worker visa
I agree that having foreigners come is great for science in Australia but it's a bit dramatic to say "you might as well close down science in Australia".

An ARC DECRA does go to your own bank account as it pays your salary.

Btw, as an Australian you can't apply for a NSF fellowship nor a European fellowship.

daleroberts··on Fun at the Unix Terminal
Me having fun with true color and Unicode 9.0 characters:

https://github.com/daleroberts/tv

daleroberts··on Timg – Terminal Image Viewer
If you are using iTerm2 and doing computer vision / machine learning on images or working with large images, my tool called 'bv' has even more features and supports TMUX as well:

https://github.com/daleroberts/bv

It uses GDAL as a backend.

daleroberts··on Timg – Terminal Image Viewer
Glad you like it :)
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