网络信息检索简单的说就是网络环境下的信息检索。它具有多样性、灵活性和及时性,是传统的信息检索所不能及的。然而,网络信息资源的无序,缺乏统一的组织、规范、管理和控制的特点给人们查找和利用造成很大的不便,从而使得人们面对丰富的信息,却难以找到适合自己的信息。1网络 Network information retrieval simply means that the information retrieval in the network environment. Its versatility, flexibility and timeliness are beyond the reach of traditional information retrieval. However, the disorder of network information resources, the lack of uniform organization, normative, management and control features cause great inconvenience for people to find and use, so that people face a wealth of information, but find it difficult to find their own information. 1 network