title: Appropriate neighborhood size for SOM
body: <p>I'm doing a program that can cluster numeric data using Kohonen Self-Organizing Maps and I'm trying to make it as generic as possible. So, <strong>how do I know the appropriate initial size of the neighborhood in proportion to the number of items (number of output nodes) in the dataset?</strong> </p>
  
  <p>Suggestions would also be greatly appreciated. :)</p>