汉语短文话题提取系统中SDTF*PDF算法的研究

陈科，贾焰，杨树强，王永恒

Study on SDTF*PDF algorithm implemented in system of topic retrieval from short Chinese passages

CHEN Ke, JIA Yan, YANG Shu-qiang, WANG Yong-heng

计算机应用 . 2005, (01): 14 -16 . DOI: 10.3724/SP.J.1087.2005.00014