**Author details**

Ligen Yu1 \*, Boxuan Yu<sup>2</sup> and Bowei Yu3

1 Talent Recruitment and Career Support (TRACS) Office, Nanyang Technological University, Singapore, Singapore

2 Hwa Chong Institution, Singapore, Singapore

3 School of Computing, National University of Singapore, Singapore, Singapore

\*Address all correspondence to: mlgyu@ntu.edu.sg

© 2019 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
