Therefore, a research on the standard system of heterogeneous information retrieval under the web environment becomes an important topic of current information retrieval area.
因此研究网络环境下，异构信息检索的标准体系成为当前信息检索领域的一个研究热点。
2
Intelligent decision support system and its correlative technology is a new research field in currentinformation field.
决策支持系统及其相关技术的研究是当前信息领域的热门课题。
3
Firstly, as an introduction, Thesis analyze the background, current situation and blueprint of construction port informationsystem, also bring forward the goal and meaning of this research.