Blogging after a while

I haven’t written for a while in this blog – I know this is not the way of looking after a blog! There are a few reasons that I didn’t post anything there:
1-My monitor was damaged (its vertical sweeping voltage generator was corrupted) and I couldn’t connect to the Internet using my own computer. I don’t feel easy to post from our lab.
2-I have started writing my thesis and it takes times and more than it mind!
3-I wanted to post a really useful(!) post, but it takes time to prepare one.

Well! That’s all!

2 Replies to “Blogging after a while”

  1. Hello!!

    I’m so glad that you had made a comment in my blog, Genetic Argonaut. 😀

    Now, answering your questions:

    1 – “What kind of ES did you used?! (a,b) or (a+b)?”

    My ES is configured by this way:
    – Parents Population = 60
    – Offspring Population = 60
    – Total of Generations = 5000
    – Kind of ES = (a+b)ES, because each parent generates one offspring and the selection occurs in the population formed by the parents + offspring. 😀

    2 – “Didn’t you turn the mutation off to see if you find a the optimum?”
    – I made the Gaussian Mutation with some modifications. Those modifications allows the ES to work better inside the variables’ intervals. With those modifications the ES can (or cannot) escape from a place that is a local optimum. But I need to make more simulations to verify the mutation operator’s behaviour.

    3 – “And another unrelated point … do you apply evolutionary methods on some real-world application?”
    – So far I did not do this, because my advisor is finishing his Phd and before I had studied Neural Networks. I started with EC around one year ago, but when my advisor come back next August, he and me will use EC to evolve Neural Networks in weather forecasting. I’m an Undergraduate student interested in Artificial Intelligence. 😀

    I hope that I had answered your questions. I’m very glad that you had asked them. 😀

    But, now, let me ask you some questions: 😀

    What problems did you face using EC ? 😀
    Did you try the DeJong Test Suit with your EC algorithms ? 😀

    See You!! 😀

    Marcelo (a.k.a Nosophorus)

  2. Hi Marcelo!

    Thanks for your answers. I find what I wanted! (: I hope you become successful in evolving that NN for weather forecasting. I think that is a nice and useful subject to work. I suggest you to be aware of overfitting that may cause by finding the very optimal parameters of NN.
    About my work on EC: well! I have done some experiences ranging from some simple one or two dimensional optimization (something like DeJong or … functions or over simpler), to applications like evolving multi-layer dielectric absorbers, evolving hidden markov models (HMM), some preliminary research on analog circuit design and evolving robot controllers. This latter is the most recent one that I used both evolution and learning for designing a behavior-based controller.

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