Self Organising Maps Toolbox

Currently trying to fill a gap in my knowledge. I have used the SOM Toolbox (https://github.com/ilarinieminen/SOM-Toolbox) to visualise data. However, i now wish to cluster the data or extract the information as to where my original input data is clustered. I have tried finding the BMU as a proxy for clusters but they have all been assigned to the same BMU according to the output.

Any help or suggestions would be greatly appreciated as i am a Matlab novice.

[Aschalew Workneh]

Dear Sir,

I want to dowload SOM toolbox from the website mentioned above, but I couldn't. Would you show me the way please?

Answer 1

[Cam Salzberger]

Hello Jake,

I don't quite know what you are asking, but I'll try to give you what help I can.

As I understand it, you are using this "SOM" third-party toolbox to visualize the data. Does it do any clustering for you? Are you trying to extract information about the clustering that it does? If this is the case, you would probably be better off asking the creators of the toolbox directly. It appears to still be under active development, so they would probably be relatively responsive.

If you are just trying to use your original data that was input into the SOM Toolbox, and do some cluster analysis on that, there are plenty of tools in MATLAB for that functionality. The Statistics and Machine Learning Toolbox is probably necessary for most of them.

If you need help being pointed towards the built-in tools in MATLAB for your specific application, I would suggest contacting MathWorks Technical Support with details on what you are trying to do.

I hope that this helped point you in the right direction.

-Cam