Hot Research Topics In Computer Science

Let us discuss the current hot topics for research in computer science field.
Our discussion can give some of us ideas for doing research in this field.

Some of the topics that I can think of are -

1. Natural Language Processing.
2. Web Security.
3. Aritificial Intelligence technologies For Rapid Bioprocess Development
4. Design and Analysis of Algorithms.
5. Discrepancy Theories.
6. Computer Graphics
7. Cloud Technology Applications
8. Computational Geomerty

Please add in more and write about what kind of research in these topics can be done.