What is a GA?

my background is in computer architecture, network architecture, embedded
systems, applied information theory.   So don't have a clue.

On Sun, May 8, 2011 at 12:45 PM, Chris Brooks <[email protected]>wrote:

> Sure, it`s widely used in multiobjective optimisation be it GAs or other
> evolutionary algorithms. I read the table of numbers as being two columns
> for the 2 objectives, and 11 rows for best GA results so far? Just trying to
> understand the optimisation problem, as my background is in optimisation :-)
>
> Chris Brooks
>
> Sent from my ASUS Eee Pad
>
> Michael Schippling <[email protected]> wrote:
>
>
>
> > OK, this is for my own amusement only...
> >
> > What the heck are you guys talking about?
> >
> > By "pareto front" do you mean the, slowly,
> > improving set of values discovered by the GA?
> > I've only heard pareto optimum in game theory,
> > not GA's, but it seems to fit.
> >
> > If that list of numbers is meant to represent
> > X-Y locations for nodes, they plot out to be
> > along the two axes. That doesn't seem to be
> > very optimal for coverage of a 2-D area.
> >
> > I will be of no use in testing, but I believe
> > TOSSIM allows one to specify locations in its
> > setup files, so you should be able to plug them
> > in with appropriate scaling.
> >
> > And I guess the insertion of telephone # links
> > was a feature of someone's iPhone having a little
> > fun with it's users?
> >
> > MS
> >
> > Not sent from no iPone or nuthin like it
> >
> >
> > Chris Brooks wrote:
> >> So are those values lying on the pareto front found by the GA? I
> >> think we need more info to figure out what you are trying to
> >> accomplish! For a start, what were the design variables of your
> >> optimisation?
> >>
> >>
> >>
> >>
> >> Chris Brooks
> >>
> >> Sent from my ASUS Eee Pad
> >>
> >> Michael Schippling <[email protected]> wrote:
> >>
> >>
> >>
> >>> uh... what are those values of? secondarily, why do some of them
> >>> seem to show as telephone numbers?
> >>>
> >>> MS
> >>>
> >>> T O wrote:
> >>>> Hi,
> >>>>
> >>>> I have a Multi-objective Genetic Algorithm that i am optimising,
> >>>> the algorithm outputs the values below. The first objective is
> >>>> maximising the efficiency of the network by lowering energy
> >>>> depletion(minimising energy depletion) and the second is
> >>>> maximising the number of nodes to achieve full coverage.
> >>>>
> >>>> 0.943164 0.000163251 <tel:0.000163251> 0.000346453
> >>>> <tel:0.000346453> 0.254052 0.583485 0.000419807 <tel:0.000419807>
> >>>>  0.289261 0.000633636 <tel:0.000633636> 0.896291 0.000314365
> >>>> <tel:0.000314365> 0.100863 0.000900134 <tel:0.000900134>
> >>>> 0.000730138 <tel:0.000730138> 0.179723 0.0010259 0.0163291
> >>>> 0.0509728 0.00154449 0.000590426 <tel:0.000590426> 0.248574
> >>>> 0.00175349 0.001788
> >>>>
> >>>> So from the output values above I wanted to simulate a wireless
> >>>> sensor network.
> >>>>
> >>>> If you could help me with this it would be greatly appreciated.
> >>>>
> >>>> Regards
> >>>>
> >>>> Thomas
> >>>>
> >>>>
> >>>>
> ------------------------------------------------------------------------
> >>>>
> >>>>
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> >>>>
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> >>
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-- 
Eric B. Decker
Senior (over 50 :-) Researcher
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