This paper presents that sdss is driven by the model which is based on gis . sdss involves the spatial problems which are hard to describe and to simulate . sdss is the decision support system of the object - oriented , spatial information - oriented , user - oriented which is used to analyze and to store information , to evaluate and to forecast information , to decide and to manage information , and supplies the rapid , different levels and high quality information service and aided decision 本文认为空间决策支持系统是以地理信息系统为基础,以模型库驱动为核心,主要用于解决难以具体描述和模拟且结构较差的空间问题,它是具有信息分析与存贮、信息评价与预测及信息决策与管理的面向对象、面向空间信息和面向用户的决策系统,并提供快速、多层次、高质量的信息服务和辅助决策。
In order to solve the problem that current search engines provide query - oriented searches rather than user - oriented ones , and that this improper orientation leads to the search engines ' inability to meet the personalized requirements of users , a novel method based on probabilistic latent semantic analysis ( plsa ) is proposed to convert query - oriented web search to user - oriented web search . first , a user profile represented as a user ' s topics of interest vector is created by analyzing the user ' s click through data based on plsa , then the user ' s queries are mapped into categories based on the user ' s preferences , and finally the result list is re - ranked according to the user ' s interests based on the new proposed method named user - oriented pagerank ( uopr ) . experiments on real life datasets show that the user - oriented search system that adopts plsa takes considerable consideration of user preferences and better satisfies a user ' s personalized information needs 针对当前的搜索引擎提供面向查询、而非面向用户的服务,从而导致搜索引擎无法满足用户个性化的需求这一问题,提出了一种基于plsa的新方法,将面向查询词的搜索转变成面向用户的搜索.首先,通过分析用户查询历史和浏览记录建立代表用户模型的用户兴趣向量,在用户发出查询时用户的查询词根据用户兴趣向量被映射到兴趣分类上,最终根据面向用户排序算法将返回结果列表重新排序.实验表明该面向用户搜索系统能够充分考虑用户的偏好,从而更好地满足不同用户的信息需求
These technologies are evolving to enable the next wave of diy - it by combining the flexibility of user - oriented information architecture provided by active content such as wikis with that of content - in - flight such as web services to provide an ease - to - use integration platform for creating the new style of content - centric applications 这些技术仍然在不断发展,形成了diy - it的下一股潮流,将活动内容(如wiki )和不断变化的内容(如web服务)这两者提供的面向用户的信息架构的灵活性结合起来,为建立新的以内容为中心的应用程序提供了易于使用的集成平台。
Library services ought to be user - centered . it requires to apply user - oriented administration and control in the entire process from the stage information selected out of the library to the stage information afforded to users . it demands to transform the organizational structure and administrative method of the library by reforming the hierarchical structure , building up team - based structure , and undertaking working process control facing to users 以读者为中心的图书馆服务,要求文献信息流从进入图书馆前的筛选到进入服务领域满足读者需求的全过程,都要建立起以读者为导向的管理和控制,从图书馆的组织结构和管理方式上进行变革,改造等级制结构,建立以团队为基础的组织结构,实施面向读者的业务流程控制。