Lab 8: Self Organising Maps Lab 8: Self Organising Maps: build a SOM in java. Open up a new project and make a new class. Allocate an array of two-dimensional nodes. Initialize them pseudo-randomly. Similarly, create an array of two-dimensional inputs. Take the first input and see what node is nearest to it. Move the node toward the data. Put this in a loop to repeat for all the inputs. Print out the modified nodes. Repeat the process with the learning rate going to zero slowly. Add a Mexican Hat function so that nodes near the best matching node also move toward the data, and those just a bit further away are pushed away. Start with actual random nodes. Try input data in a line, or some other shape. Plot the results (manually if necessary). Try 3D nodes and data.
