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| bio | website | |
|---|---|---|
| location | ||
| age | ||
| visits | member for | 1 year, 3 months |
| seen | May 15 at 14:28 | |
| stats | profile views | 404 |
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Oct 24 |
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How can I speed up the classic GA for graph coloring? @OleksandrR. is correct about requiring domain-specific knowledge to make the recombination framework produce children that actually retain the important genes. In this application, the important genetic information is the partition of the graph into independent sets given by the proper coloring, i.e. the "color classes". So the trick is to splice the two color vectors in a way that preserves the properness of the coloring but also modulates the color classes... And if annealing is used, colors cannot be reduced too quickly, the temperature must be dropped slowly for optimal configurations. |
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Oct 24 |
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How can I speed up the classic GA for graph coloring? Version 8 has no GraphColor[] functionality... are you able to import the sample inputs from the website? info.univ-angers.fr/pub/porumbel/graphs I believe that you would need v8 Import to get the .col files... I can post them as compressed matrices if you need. |
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Oct 24 |
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How can I speed up the classic GA for graph coloring? Thanks, see my comments to run the code in version 7. |
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Oct 23 |
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How can I speed up the classic GA for graph coloring? @DanielLichtblau I'm after a fast upperbound approx algorithm to push stuff, and I'm keen on getting a GA/GP to work. I've tried others, but if a stochastic, deterministic, and annealing method works better who am I to say, just test against the benchmark... |
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Oct 16 |
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How can I have interruptible computations inside a manipulate? @Mr.Wizard lol! For once, I was actually trying to have a SLOWER function to test this on... |
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Oct 15 |
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How can I have interruptible computations inside a manipulate? Ok, this looks good, can you use my original example with the function: f[x_] := Total@Table[i^4, {i, x}] |
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Oct 10 |
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How can I make a heatmap of a days in year? RandomDateList[minYear_:1800, maxYear_:2100] := {RandomInteger[{minYear, maxYear}], RandomInteger[{1, 12}], RandomInteger[{1, 31}], RandomInteger[{0, 23}], RandomInteger[{0, 59}], RandomInteger[{0, 59}]}; RandomDates[n_] := Table[RandomDateList[],{n}]; RandomDates[n_, i_, x_] := Table[RandomDateList[i, x],{n}]; |
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Oct 10 |
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How can I make a heatmap of a days in year? @george Yes, I feel it helps to see the divisions along weeks and months... sort of a birds eye view along all the dimensions... |
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Oct 10 |
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How can I make a heatmap of a days in year? After gathering by the month, stacking the matrices should be easy but its not |
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Oct 10 |
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How can I make a heatmap of a days in year? I was almost there, but the hard part is getting the divisions right... |
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Oct 10 |
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How can I make a heatmap of a days in year? I've checked it out on github, was looking through the java classes... |
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Oct 8 |
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How can I export aligned equations to $\LaTeX$? It's a Cell style. Just go to Format -> Style -> Item Numbered. It uses a CounterBox to keep track of counts. |
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Sep 27 |
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Looking for “Longest Common Substring” solution Has anyone got this working on Mac OS X 10.8.2? |
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Sep 27 |
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How to quickly calculate intersections of filled curves? @freddaneilkline Opencllink is very dicey, even simple questions on this are difficult to answer. Not to mention he probably wants a solution that is device independent. |
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Sep 27 |
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How to quickly calculate intersections of filled curves? mathematica.stackexchange.com/questions/7174/… only solved unions |
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Sep 27 |
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How to quickly calculate intersections of filled curves? Great question! I've often wondered this myself... |
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Sep 19 |
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How can I regroup elements in a list into a tree based on their values? Arbitrarily deep, that's where the trickiness of the problem lies. |
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Sep 19 |
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How can I regroup elements in a list into a tree based on their values? Yes. The elements in the input list are always in order, and at least they could always be sorted by their first element. |
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Sep 17 |
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How can I build an inline documentation utility? @LeonidShifrin how might I adapt this to WorkBench and extracting comments for a symbol from a file? |
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Sep 13 |
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How can I build an inline documentation utility? @LeonidShifrin Nice comment grabber. But I think the project of an general inline documentation utility remains a worthy goal. |
