信息检索

With the rapid development of Internet technology and then the surpassing increase of all kinds of information characterized by geometric progression, The intellectualized information retrieval has become a major research topic, for the traditional information retrieval cant meet the requirements of users.

随着因特网技术的迅速发展，因特网上信息成几何级数增长，传统的信息检索服务已不能满足用户的检索需求，因此智能信息检索成为重要的研究课题。

Finally, the text classifier based on the relevance of index word is devised.(3) After analyzing the foundation of various information retrieval models, the thesis put forward a new information retrieval model, which based on the field theory.

在此基础上通过对核心标引词相关度的加权，实现了基于标引词相关度的文本分类；(3)在分析了各种信息检索模型的基础上，提出了一种新的信息检索模型——基于场论的信息检索模型。

Retrieval techniques based on IR research have found their way into major information services (for example, West Publishing's WIN system, Individual's clipping service) and the World Wide Web (for example, InfoSeek and Lycos).

但是现在情况大有改变，信息检索研究的相关检索技术已找到了应用于信息服务（例如，西部出版的 WIN 系统提供的个人剪辑服务）和互连网（如 InfoSeek 和 Lycos ）领域的出路。

Based on taking other's research in this field as reference, we proposed an improvement on personal information retrieval model to solve the issue of retrieving documents with unrevealed format.

在参考其他个人信息检索研究的基础上，针对未开放格式文件的检索问题，提出了个人信息检索模型的改进。

In view of the situation that existing search engines cannot follow up the change of webpage and their low precision in information retrieval, the dissertation suggests an idea of personalized information retrieval service, and establish a user model for personalized information retrieval based on user partialness keyword list on client server, which can supply personalized information retrieval service for user with the communications and collaboration of all modules of it.

本文针对利用现有的搜索引擎进行信息检索的过程中存在的查准率低和用户无法跟踪网页信息变化的缺点，提出面向用户的个性化信息检索服务理念，在客户端建立基于关键词表的用户个性化信息检索模型，通过用户个性化信息检索模型内部各功能模块之间的通信协作达到面向用户的个性化主动信息检索服务。

The dissertation is focus on establishing a user model for personalized information retrieval based on user partialness keyword list, including classified dictionary, study module, user behavior monitor module, Internet change detecting module, document analysis and information filtering module, and with the communications and collaboration of these modules, the model obtains on load of user partialness information while in inquiring, retrieving and results filtering. Thus the precision of information retrieval increases, and it can keep up with the change of webpage, and personalized information retrieval service realized.

本文的主要工作是在客户端建立基于用户偏好关键词表的用户个性化信息检索模型，包括分类词典、学习模块、用户行为监测模块、Internet变化检测模块及文档分析与信息过滤模块，并通过各模块之间的通信协作来实现用户查询提问时、信息检索过程中和检索结果过滤时用户偏好信息的加载，来提高检索结果的精度和跟踪网页信息的变化，从而实现个性化信息服务。

Information retrieval technology is developing in individualization and intelligent direction, individualizing and intelligent information retrieval feedbacks the retrieval results to the users as the retrieval needs of users.

信息检索技术正朝着个性化、智能化的方向发展，个性与智能的信息检索根据用户的检索要求将信息查询结果反馈给用户。

This paper studied the effects of using of link information for Web IR in TREC experiment,including link anchor text,link structure and the combination of link-based retrieval and traditional content-based retrieval.

摘要］ 本文通过TREC实验研究基于链接信息的检索对Web信息检索的影响，包括使用链接描述文本，链接结构以及将基于链接的方法和传统基于内容检索的方法合并。

The information retrieval is one of the important components of library information services. The network information retrieval not merely has a greatr impact on library information service, and has impetuses to the development of library information service.

信息检索是图书馆信息服务的重要组成部分之一，网络信息检索的出现不仅对图书馆信息服务产生较大的影响，而且对图书馆信息服务的发展具有推动作用。

In this paper,the storage forms of sound and image information are first discussed.Then,the authors study and analyse methods and technology that can be used in sound and image retrieval,and give classified expositions.Meanwhile,this paper makes comparative research on data models of the multimedia information retrieval system,proposes that the design of MIRS may base on a RDB system,and it can support storage and retrieval of sound and image information by expanding its ability of managing complex objects and multimedia data.

本文首先分析了声音与图像信息的存贮处理，接着分类阐述了声音、图像信息检索可以采用的方法和技术；在此基础上，对多媒体信息检索系统的数据模型进行了比较研究，提出在目前技术条件下，多媒体信息检索系统的设计可采用现有成熟的关系数据库系统作为基础，并在关系模型里增加处理复杂对象与多媒体数据的能力，以实现对声音、图像等多媒信息的存贮与检索。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。