一种海量题库难度系数和区分度动态优化模型

郭敏华，兰雨晴，金茂忠

Dynamic optimization model about difficulty coefficient and discrimination of exam questions in questions pool

GUO Min-hua，LAN Yu-qing，JIN Mao-zhong

计算机工程与应用 . 2007, (21): 246 -248 .