Sunday, October 21, 2007

Evolving Missile Trajectory Through Simulated Evolution

I have found an old school evolution strategy article, from 1980: Optimization of missile trajectories by means of evolution strategy. You can read the first page here.

From the abstract:

Evolution Strategy is an optimum seeking method which attempts to apply the rules of biological evolution - mutation and selection - as closely as possible to technical optimization problems.
In the paper results are presented showing the successful application of evolution strategy to missile trajectory optimization problems like

- Range optimization of a ballistic rocket and e boost-glide missile

- Optimization of miss distance due to lateral wind of a Short range antitank missile

- Optimal trajectory shaping A comparison with other optimization methods is given to show the efficiency of evolution strategy.


From the introduction we can understand a little of the academic Zeitgeist along that period, see below:

"The paper deals with solutions of optimization problems which we have gained by the application of evolution strategy to missile engineering and development. Evolution strategy is an imitation of nature's way of optimization, a game of mutation and selection. Since nature has been man's teacher in many ways it might appear quite obvious to apply the laws of biological evolution to problems of engineering and technology.

On the Other hand there are also objections to that method, the most important ones being that "cut and try" is a sign of poor engineer and craftsmanship and that we cannot afford nature's lavishness in means and in time to wait for the result. Based on a number of number of encouraging results [1], [2] we have tried to gather our own experience with the matter and will present the results we have achieved.


It seems that the author worked to the famous German aircraft manufacturer Messerschmitt, which gave birth to the world's first operational turbojet fighter aircraft, the so-called Messerschmitt Me 262.

Below the old Messerschmitt logo.

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Thursday, October 18, 2007

More On The 2007 IEEE Congress On Evolutionary Computation (CEC)

Takayuki Higo has a post upon his report on the 2007 IEEE Congress On Evolutionary Computation (CEC), see here.

Don't forget to check the pictures he took!


The picture above I took from his Flickr personal album.


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2007 IEEE Congress On Evolutionary Computation (CEC)

Our blog friend, Julian Togelius, has written his own account upon the 2007 IEEE Congress On Evolutionary Computation (CEC), see here.

You can also check some pictures of the congress here.

No complaints on the whole event. It's nice, since the attendee must pay a fee for some basic services - such as, I suppose, internet facilities, lunch place, etc -, what means that the fee was worthwhile. There was even somekind of "safari" through the local zoo!

It seems that the event was O.K.!

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