@ARTICLE{Zhou2019:Learning, 
author={J. T. {Zhou} and M. {Fang} and H. {Zhang} and C. {Gong} and X. {Peng} and Z. {Cao} and R. S. M. {Goh}}, 
journal={IEEE Transactions on Neural Networks and Learning Systems}, 
title={Learning With Annotation of Various Degrees}, 
year={2019}, 
volume={30}, 
number={9}, 
pages={2794-2804}, 
doi={10.1109/TNNLS.2018.2885854}, 
ISSN={2162-237X}, 
month={Sep.},}