COMP9444 Neural Networks

Self-Organising Systems

  1. If a 2-D SOM has a map of dimension w × d, and k input neurons, how many weights does it have?

  2. Spend some time at these websites to get a feel for SOM applications: http://www.cis.hut.fi/research/som-research/worldmap.html and http://websom.hut.fi

  3. You would have studied sorting algorithms in an early phase of your computing studies. They take unordered data, and order it. Sometimes is it good to have data in a random order, as when supplying (non-sequential) data to a neural net algorithm, or when shuffling cards for a game program. Write a procedure to shuffle a vector (e.g. Data vector[N]). Hint: one way to do this is to modify the basic framework of selection sort.


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