共 4 条
[3]
海量数据集上基于特征组合的关键词自动抽取[J]. 张庆国,薛德军,张振海,张君玉.情报学报. 2006 (05)
[4]
PAT-tree-based Keyword Extraction for Chinese In-formation Retrieval .2 Chien L F. Proceedings of the20th Annual Inter-national ACMSIGIR Conference on Research and Development in Information Retrieval(SIGIR1997) . 1997