What are interesting ideas for experimenting with Artificial Neural Networks? [closed]

Question

I'm after a list of possible neural network implementations that can be experimented with. Possibly something that could take an hour to a week to write.

What other possibilities are there?

Here's the list so far:

• Games
  • tic-tac-toe
  • Connect 4
  • Chess
  • Go
  • Sudoku
  • paper/scissors/rock
  • horse racing predictor
• Visual recognition
  • Character recognition (typefaces, letters, numbers, etc)
  • Facial recognition
• Audio recognition
  • Language detection
  • Male vs female
• Word recognition
  • Language detection (natural, programming)
• Pathfinding
  • "Artificial neural network driven mobile robots learn how to drive on roads in simulation." http://cig.felk.cvut.cz/projects/robo/, http://www.youtube.com/watch?v=lmPJeKRs8gE

Some links to more:

• http://www.cs.colostate.edu/~anderson/res/project-ideas.html

Answer 1

You can combine Genetic Algorithms and Neural Networks to evolve simple neural configurations, such as Neural Networks that perform logic operations (including the phantomatic XOR!).

This is a topic I very much like because - if you think about it - it's a bare bones model of how our brains evolved (I am not saying we have logic gates in our head).

It is simple enough - and should be good fun!