Yitong Yang Qixiao Lin Jian Mao Lipei Liu An improved social attribute inference scheme based on multi-attribute correlation. 370-377 2021 SmartWorld/SCALCOM/UIC/ATC/IOP/SCI https://doi.org/10.1109/SWC50871.2021.00057 conf/uic/2021 db/conf/uic/uic2021.html#YangLML21