水文信息检索系统设计与实现

摘要

Aiming to the features of disperse and independent hydrological data, a hydrological information searching system was designed and realized by using technologies of information grab, information index, Deep Web and open interface based on the existing data sources such as websites, water and rainfall information database, document database and journal database, etc. . The system has the functions such as information acquiring, information indexing and searching, information display, man-agement and maintenance. The special thesaurus was expanded and the order of the searching results was optimized, the unify search of multi-sources data was realized. Meanwhile, the asynchronous request and intelligent-prompt improved the friendli-ness for the users, simplified the searching steps and saved time. The system has run for 2 years and the operation status is good.%针对水文信息检索中数据源分散、信息系统独立的特性,从现有网站、水雨情数据库、文档数据库、期刊数据库等数据源出发,利用信息爬取、信息索引、Deep Web、开放接口等技术,设计并实现了水文信息检索系统。该系统具备信息采集、信息索引和检索、信息展示、管理维护等功能,扩充了专用词库,优化了检索结果的排序,达到了多种数据源统一检索的目的。系统特设的页面异步请求和智能提示功能,增强了系统的用户友好性,简化了检索步骤,节约了检索时间。该系统已上线运行2 a,运行状况良好。