摘要
从自然语言在情报检索中存在的缺陷入手 。
Useing natural language in information retrieval system has some limitation,so controling on natural language is very necessary.The author put forwards several main control methods researched in recent years.
出处
《北京教育学院学报》
2001年第1期53-55,共3页
Journal of Beijing Institute of Education