hartror

28 ms·

241.
by hartror 13y ago
I have tested out using gecode as a minizinc backend as I like the look of gint. I've been skimming hakank.org but it is a little advance for me at the moment. Is there a way to get a minizinc model into cp optimizer?
242.
by hartror 13y ago
I have a cplex license on my work machine so that is another avenue to explore!
243.
by hartror 13y ago
We use CPLEX for LPs but I've not read much on the CPLEX CP solver. Maybe because it isn't free so the academics stick with the OSS ones? How does it compare to gecode?
244.
by hartror 13y ago
Constraint propagation + depth first search.
245.
by hartror 13y ago
Yup pure laziness as it was a toy problem. Though in my experiments with a gecode sudoku model its propagation was amazing, reducing the search space to a handful of branches. Another toy problem of course but one of a significantly larger
246.
by hartror 13y ago
It is "smart" enough. Before and then during searching the problem space the solver performs constraint propagation, which is a bunch of clever algorithms (the maths for I am yet to grok) that reduce the domains of variables. This allows it
247.
A CP Solution for XKCD NP Complete Restaurant Order(roryhart.net)
131 points by hartror 13y ago|53 comments
248.
by hartror 13y ago
Depends on the size and location of the event just like land. Being underwater didn't protect the water based dinosaurs from the impact that ended the dinosaur's reign over the earth.
249.
by hartror 13y ago
I see it as decoupling our survival as a species from the planet earth. Growing our access to resources and land is a secondary consideration to me.
250.
by hartror 13y ago
In the tropics we had some pest control for cockroaches but down south we don't really bother.
251.
by hartror 13y ago
Non-Australians who click on linked article on huntsmans[1] should note these are regular visitors in our homes. But as much as I love scaring foreigners with our wild life (google dropbear) the ones you see day to day in urban environments
252.
by hartror 13y ago
They're providing a premium account the the affected users.
253.
by hartror 13y ago
Ditto. He really is an inspiration.
254.
by hartror 14y ago
> But you have to trade it off against alternative uses of the funds. It is an investment on borrowed money using our AAA rating, we expect to get a return on the invested funds higher than the interest rate paid. The alternative isn'
255.
by hartror 14y ago
Actually Boston uses "mall" in the same way as the English and Australians.
256.
by hartror 14y ago
Order of operations matter. Try adding a few small floating point numbers together with a really large floating point number in different orders.
257.
by hartror 14y ago
Exactly, I have done this today!
258.
by hartror 14y ago
I have never noticed the arrow!
259.
by hartror 14y ago
What is the reasoning?
260.
by hartror 14y ago
We have well documented progressions in physiology for age estimates of younger people[1]. Though these are quite inaccurate, as recent cases of Indonesian child sailors jailed in Australia as adults have shown. I would think the uncertaint
261.
by hartror 14y ago
That is how I did it.
262.
by hartror 14y ago
I have that same issue!
263.
by hartror 14y ago
This had me twitching right from the start: Increasing what scientists call the planet’s albedo, or reflective power ... What scientists call? How about what everyone calls when they need to measure reflectivity. I don't know i
264.
by hartror 14y ago
Seriously, I need to watch West Wing I think someone posts an awesome and politically relevant clip on HN once a month (that I see and watch).
265.
by hartror 14y ago
> My PHP Book Just Hit #1 At Amazon PHP Programming For Affiliate Marketers best seller in . . . "Kindle Store > Kindle eBooks > Nonfiction > Computers & Internet > Programming > PHP Category" Well you can't bl
266.
by hartror 14y ago
Yeah they're pretty boned. They'd be mad not to accept the inevitable embrace the tech and re-gear their business model around that.
267.
by hartror 14y ago
Hence me saying that a automatic machine isn't the worst thing in the world . . .
268.
by hartror 14y ago
We have a proper machine in the office and some people still drink ugh instant. At least with a machine like we are discussing people will drink a better standard of coffee than they otherwise would.
269.
by hartror 14y ago
A hobbyist UAV is probably not weather sealed, hardened against interference or heavily tested under battle like conditions. These are assumptions but they'd be my requirements if I was specing this system. They also appear to be an order o
270.
by hartror 14y ago
R&D. The production cost of the units is likely quite reasonable but the cost of developing and testing the system is what cost ₤20mil.

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