Comments on: The Self-Organized Gene (Part 1) http://blog.peltarion.com/2007/04/10/the-self-organized-gene-part-1/ The Peltarion Blog Fri, 21 Nov 2008 06:27:59 +0000 http://wordpress.org/?v=2.6.2 By: Web 2.0 Announcer http://blog.peltarion.com/2007/04/10/the-self-organized-gene-part-1/#comment-18235 Web 2.0 Announcer Sun, 25 Nov 2007 20:18:29 +0000 http://blog.peltarion.net/2007/04/10/the-self-organized-gene-part-1/#comment-18235 <strong>Synaptic » Blog Archive » The Self-Organized Gene (Part 1)...</strong> [...][...]... Synaptic » Blog Archive » The Self-Organized Gene (Part 1)…

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]]> By: Self-organizing map http://blog.peltarion.com/2007/04/10/the-self-organized-gene-part-1/#comment-12509 Self-organizing map Thu, 16 Aug 2007 07:44:09 +0000 http://blog.peltarion.net/2007/04/10/the-self-organized-gene-part-1/#comment-12509 [...] “The Self-Organized Gene, Part 1″, and Part 2 beginners’ level introduction to competitive learning and self-organizing maps. [...] [...] “The Self-Organized Gene, Part 1″, and Part 2 beginners’ level introduction to competitive learning and self-organizing maps. [...]

]]> By: Frank http://blog.peltarion.com/2007/04/10/the-self-organized-gene-part-1/#comment-11319 Frank Wed, 25 Jul 2007 12:30:02 +0000 http://blog.peltarion.net/2007/04/10/the-self-organized-gene-part-1/#comment-11319 Nice tutorial! You should make a note that the SOM is not per default generating a mapping of the data which is topological preserving. There are measures indicating if the projection is valid under the light of toplogy preservation. If the map was not able to project high dimensional data on an e.g. two dimensional grid with small error then the neighborhood relations shown on the map can not be transfered to the high dimensional data. Nice tutorial!

You should make a note that the SOM is
not per default generating a mapping of
the data which is topological preserving.
There are measures indicating if the projection
is valid under the light of toplogy preservation.
If the map was not able to project high dimensional data
on an e.g. two dimensional grid with small error
then the neighborhood relations shown on the map
can not be transfered to the high dimensional data.

]]> By: Luka (Peltarion) http://blog.peltarion.com/2007/04/10/the-self-organized-gene-part-1/#comment-8201 Luka (Peltarion) Wed, 13 Jun 2007 13:26:31 +0000 http://blog.peltarion.net/2007/04/10/the-self-organized-gene-part-1/#comment-8201 The second part of the tutorial is now available: http://blog.peltarion.net/2007/06/13/the-self-organized-gene-part-2/ -Luka The second part of the tutorial is now available:
http://blog.peltarion.net/2007/06/13/the-self-organized-gene-part-2/

-Luka

]]> By: Synaptic » Blog Archive » The Self-Organized Gene (Part 2) http://blog.peltarion.com/2007/04/10/the-self-organized-gene-part-1/#comment-8200 Synaptic » Blog Archive » The Self-Organized Gene (Part 2) Wed, 13 Jun 2007 13:23:25 +0000 http://blog.peltarion.net/2007/04/10/the-self-organized-gene-part-1/#comment-8200 [...] In the first part of the tutorial we introduced competitive algorithms and focused on the Self-Organizing Map (SOM). We showed how it can be used to visualize high-dimensional data in a very intuitive way. [...] [...] In the first part of the tutorial we introduced competitive algorithms and focused on the Self-Organizing Map (SOM). We showed how it can be used to visualize high-dimensional data in a very intuitive way. [...]

]]> By: Luka (Peltarion) http://blog.peltarion.com/2007/04/10/the-self-organized-gene-part-1/#comment-8131 Luka (Peltarion) Mon, 11 Jun 2007 22:14:58 +0000 http://blog.peltarion.net/2007/04/10/the-self-organized-gene-part-1/#comment-8131 Sorry about not posting the second part as soon as I previously said. I will really make an effort to get it done this week. Some work in Synapse came in the way and to add to my troubles I couldn't find the data set I intended to use for the second part (micro-array data of the genetic disposition of mice to become alcoholics). I have also been answering customer support emails for the last two weeks (we have a rotating system). Clive - unfortunately, I have no draft. I have a few unreadable handwritten notes and a general idea what I want to do with part 2. I also had a good data set, but since I've misplaced it, I'll have to find another one. My colleagues have been immensely helpful by pointing out that since I wrote the first part that only I could write the second one. ;) Anyway, I'll complete the second part this week. I have to as I'm going on vacation to Croatia next Monday and I'll be away for at least three weeks. I'll have an internet connection and all that, but I doubt that I'll get much done. --Luka Sorry about not posting the second part as soon as I previously said. I will really make an effort to get it done this week. Some work in Synapse came in the way and to add to my troubles I couldn’t find the data set I intended to use for the second part (micro-array data of the genetic disposition of mice to become alcoholics). I have also been answering customer support emails for the last two weeks (we have a rotating system).

Clive - unfortunately, I have no draft. I have a few unreadable handwritten notes and a general idea what I want to do with part 2. I also had a good data set, but since I’ve misplaced it, I’ll have to find another one. My colleagues have been immensely helpful by pointing out that since I wrote the first part that only I could write the second one. ;)

Anyway, I’ll complete the second part this week. I have to as I’m going on vacation to Croatia next Monday and I’ll be away for at least three weeks. I’ll have an internet connection and all that, but I doubt that I’ll get much done.

–Luka

]]> By: Clive Jones http://blog.peltarion.com/2007/04/10/the-self-organized-gene-part-1/#comment-7925 Clive Jones Wed, 06 Jun 2007 16:49:19 +0000 http://blog.peltarion.net/2007/04/10/the-self-organized-gene-part-1/#comment-7925 Luka, I also want to congratulate you on this introduction - one of the clearest I have read. And I am interested in the second part, as a prospective buyer and user of Synapse. Several years ago, I wrote my own algorithms to train feedforward networks with backward propagation of errors. This was in Gauss, a numerial analysis matrix language. I am impressed by what I have seen of Synapse, and am working through its features. I probably will buy it when I get a new PO from a client that is currently in the works. However, the clustering analysis is something that really interests me. Is there any possibility of getting a draft of Part II, if I buy the software? Best Clive Jones Managing Director Economic Data Resources LLC PO Box 1009 Boulder, CO 80306-1009 303-440-7626 Luka, I also want to congratulate you on this introduction - one of the clearest I have read. And I am interested in the second part, as a prospective buyer and user of Synapse.

Several years ago, I wrote my own algorithms to train feedforward networks with backward propagation of errors. This was in Gauss, a numerial analysis matrix language.

I am impressed by what I have seen of Synapse, and am working through its features. I probably will buy it when I get a new PO from a client that is currently in the works.

However, the clustering analysis is something that really interests me. Is there any possibility of getting a draft of Part II, if I buy the software?

Best
Clive Jones
Managing Director
Economic Data Resources LLC
PO Box 1009
Boulder, CO 80306-1009
303-440-7626

]]> By: Luka (Peltarion) http://blog.peltarion.com/2007/04/10/the-self-organized-gene-part-1/#comment-6721 Luka (Peltarion) Fri, 11 May 2007 23:00:58 +0000 http://blog.peltarion.net/2007/04/10/the-self-organized-gene-part-1/#comment-6721 Hi, Thanks! The second part will be posted in a week or two. -Luka Hi,

Thanks! The second part will be posted in a week or two.

-Luka

]]> By: Nick http://blog.peltarion.com/2007/04/10/the-self-organized-gene-part-1/#comment-6400 Nick Fri, 04 May 2007 08:48:05 +0000 http://blog.peltarion.net/2007/04/10/the-self-organized-gene-part-1/#comment-6400 nice intro! just wonder, where is the second part? nice intro!

just wonder, where is the second part?

]]> By: WillK http://blog.peltarion.com/2007/04/10/the-self-organized-gene-part-1/#comment-5895 WillK Fri, 13 Apr 2007 17:10:28 +0000 http://blog.peltarion.net/2007/04/10/the-self-organized-gene-part-1/#comment-5895 Excellent tutorial. I loved the fuzzy logic article, but this one is even better. I'm looking forward to the second part. Thank you! Excellent tutorial. I loved the fuzzy logic article, but this one is even better. I’m looking forward to the second part. Thank you!

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