TY - Computer Science A1 - HUANG Meng-ting, ZHANG Ling, JIANG Wen-chao T1 - Short Text Feature Expansion and Classification Based on Non-negative Matrix Factorization Y1 - 2019-12-15 JF - Computer Science JO - Computer Science SP - 69 EP - 73 VL - 46 IS - 12 UR - https://www.jsjkx.com N1 - 10.11896/jsjkx.190400107 ER -