Bagging self organizing map

thanks Nagy, what im trying to do is to create a software that can search documents and place them in order of priority by using the self organiing map. its part of a project i'm helping a friend with. and with this i have no idea where to start. im thinking of first maaking a search engine then next trying to make it work with the self organiing map. all i've got are some theories and formulars from online journals. i guess what u read on wiki kinda shows u how lost i got.

drag it down to an understandable level:

Do create the search engine.
The documents have to be rated. Therefor you have to name certain definitions on how to rate them (size, quality, ...).
Also do documents have keywords. Get a clear definition on how to organize them and how keywords can influence the rating.

After that you need to have the search engine react on the user input.
For example: if the keyword "xxx" leads to the selection of the book nr. 12 - rate it so it comes more to the front next time.

Make sure you set the project up in different modules to make it possible to change things easily (like using an advanced rating-mechanism).