Looking for master thesis topics in neural networks

Looking for master thesis topics in neural networks

I'm looking for a thesis topic that satisfies the scope of a masters
thesis and is relevant to the current literature in Neural Networks.
I have knowledge inRestricted and Conditional Restricted Boltzmann
Machines, Extreme Learning Machines, Convolutional Neural Networks,
Recurrent Neural Networks, Multi-layer Perceptrons, Sparse Autoencoders,
Deep Belief Nets, and so on
It is difficult to choose one of these topics as they are very interesting
but broad in scope. However, I'm looking for something specific to work
on. To illustrate further my field of interest, I did some work on NLP,
time series, and object recognition research problems.
Thanks!