Study of Web Information Retrieval Based on Structure and Subject;
无法从拓扑结构数据库中检索“全局属性”。
In order to help the user to retrieval the useful web information, the, web information retrieval system comes into being.
为了帮助用户检索和获得网络上的丰富信息，网络信息检索系统应运而生。
Beginning with an analysis of the present situation of WEB information retrieval, points out its main limitations and induces WEB data mining.
首先分析了WEB信息检索的现状，主要针对WEB信息检索的局限性，引出WEB数据挖掘，并对WEB数据挖掘技术作了概要的介绍。
This article discussed the concept and application of thesaurus, from thesaurus to thesaurus network, its application of Web information retrieval system.
本文探讨了叙词表的概念与应用特点；从叙词表到叙词网络；叙词表在网络信息检索系统中的应用。
The paper analyses the important changes of web information retrieval languages and the impact of Internet on them and discusses their system structure and terms.
本文分析了在网络平台中情报检索语言发生的重要变化，以及网络环境对检索语言的影响，最后讨论了检索语言的体系结构与词汇问题。
The paper provides some improving measures, and gives a model of active pushing system based on vector space model, which can better improve the efficiency of Web information retrieval.
本文提出了一系列优化措施，设计了一个基于向量空间模型的主动推送系统原型，更好的满足网上信息检索效率的提高。
Companies have been adopting Web services technologies for several years, but Web services are primarily used for information retrieval.
尽管许多公司已采用Web服务技术多年，但是它们主要将Web服务用于信息检索。
In addition to these helping features, the participants' behavior suggests that the design of Web sites be adjusted to respond to the important role of visual clues in information retrieval.
除了这些有帮助的特征外，这些参与者建议，在资讯检索中网站的设计应该可调整，来回应视觉性的提示应扮演重要角色。
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。
In 2005, an annual conference, AIRWeb, Adversarial Information Retrieval on the web, [20] was created to discuss and minimize the damaging effects of aggressive web content providers.
在2005年的网络对抗性信息检索年度会议(airweb, Adversarial Information RetrievalontheWeb)上，人们探讨了如何将过激网络内容提供者的破坏性后果最小化。
This paper expounds the meaning of adopting the individual Web teaching method in teaching Information retrieval course in university after analyzing the characters of Web teaching method.
在分析网络教学优缺点的基础上，论述了高校信息检索课采取个性化网络教学的现实意义。
Collection, organization and retrieval of web information are the three main functions of search engine.
搜索引擎具有网上信息收集、组织和检索三大功能。
The information resources in the library provides readers with WEB retrieval pages through WPAC.
图书馆信息资源通过WPAC ，为读者提供了WEB检索页面。
The types of web pages, single or multi-windows, affected the performance of information retrieval if no navigation tools were used in a hypertext or the networking speed was lower.
超文本中无导航工具或网页响应速度过慢时，网页窗口呈现方式对信息检索绩效具有显著影响。
Deep Web; Network information resource; information retrieval; U. S. a.
深网；网络信息资源；信息检索；美国。
With the emergence of semantic web, semantic-based information retrieval has become an effective way to improve retrieval ability.
随着语义网的出现，基于语义也逐渐成为提高信息检索能力的一个有效途径。
The deeper analysis of instruction requirements and good teaching design are the core work in developing the web-based courseware for Information Retrieval and Utilization.
深入的教学需求分析和良好的教学设计是《信息检索与利用》网络课件开发的核心内容。
Extraction of Web Information System filters the retrieval results according to user model and meets user personalized need with raising the accuracy and recall ratios.
实验结果表明，基于此兴趣模型的网络信息提取系统能对检索结果做出个性化过滤处理，提高用户的查准率和查全率，满足用户的个性化需求。
Absrtact: Text classification is the base of information retrieval and data mining and it is widely used in web data mining and search engine.
摘要：文本分类是信息检索和数据挖掘的基础，被广泛应用于网络数据挖掘及搜索引擎等方面。
As an important part of Web-based teaching, the retrieval of teaching information has become main way by which learners get knowledge resource.
教学信息检索作为网络教学的重要部分，已经成为学习者获取知识资源的主要途经。
Methods for on-line retrieval and consulting of chemical information from Internet were summarized, meanwhile some outstanding chemical web sites are listed.
简要概括了互联网上化工信息检索和查询的方法，并列举了一些优秀的化工网站。
Focused crawler is a subject-oriented information retrieval system. It can meet the users' need and retrieve information that is relevant to some specific subjects from the web automatically.
聚焦爬虫是一种面向主题的信息搜集系统，可以根据用户需要从互联网上自动搜集到主题相关信息，在主题搜索引擎、站点结构分析等方面取得越来越广泛的应用。
My research interests include computer science education, machine learning, and information retrieval on the web. Please see my publications web page for more information.
我的研究方向主要有计算机科学教育，机器学习和网络信息挖掘。
WEB page content structure is very helpful for applications such as information retrieval, classification, information extraction etc.
页面内容结构分析在WEB信息检索、分类和抽取等方面有重要作用。
Introduces the web sites and contents of patent databases well-known at home and abroad as well as the free retrieval of patent information on the Internet.
重点介绍因特网上国内外著名的专利数据库的网址、内容和专利文献的免费检索方法。
The first is Web content mining, which describes the process of information retrieval and extraction from varieties of sources across the World Wide Web.
二是网络使用挖掘，指挖掘网站访问方式或其他网络用户信息的过程。
In this paper, it mainly researches on the intention of information retrieval in the web content access and intent of web-based clustering.
本文针对意图信息检索中的网页内容获取和基于意图的网页聚类进行研究。
For example, in information retrieval application, it may submit a Web page to users just because the page advertisement information contains the keywords searched by the users.
比如在信息检索时，可能仅仅因为某一页面广告信息中包含用户所查找的关键字而将该页面返回给用户。
For example, in information retrieval application, it may submit a Web page to users just because the page advertisement information contains the keywords searched by the users.
比如在信息检索时，可能仅仅因为某一页面广告信息中包含用户所查找的关键字而将该页面返回给用户。
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