• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文学位 >Mediated information retrieval for the Web environment.
【24h】

Mediated information retrieval for the Web environment.

机译：Web环境的中介信息检索。

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The goal of this dissertation was to understand whether simulating a human intermediary that has the domain knowledge and its structure would support a user's Web searching tasks. This research applied the mediated access through a collection in a specific domain, and a combined display of a clustered structure and a linear ranked list of search results as the simulated intermediary. We investigated whether the existence of either the mediation condition and/or the display condition would affect the three main measures of the user's Web searching behaviors: effectiveness, efficiency, and usability. The goals of this dissertation were accomplished by conducting an experimental study of Web information-seeking. Subjects were provided with four tasks with limited time given, all requiring some domain knowledge regarding environmental issues. Detailed user behaviors were collected via questionnaires, logged data, and exit interview. The results of the study demonstrated that the mediation condition or the display condition did not have much effect on the three measures. However, all these measures had interesting results via further analyses considering three important factors; the order of the tasks, topic easiness, and system usage order. The mediated system and the combined display were more effective, efficient, or useful than the non-mediated system and the linear ranked list as a user conducted more information searching tasks, when the given topic was easy/difficult, and when the searcher is provided with a preliminary experience with a familiar IR system before using the mediated IR system. Finally, it turned out that the combination of the mediated and combined display seems not ideal for Web searching due to its complexity. In conclusion, this research contributes to a better understanding of how the mediation system and/or the combined display support a Web information user. Results of this research suggest additional research agendas involving both the mediation condition and the display condition for Web IR system design.
机译：本文的目的是了解模拟具有领域知识及其结构的人类中介是否会支持用户的Web搜索任务。这项研究通过特定领域中的馆藏应用了中介访问，并将集群结构的显示和搜索结果的线性排名列表组合显示为模拟中介。我们调查了中介条件和/或显示条件的存在是否会影响用户Web搜索行为的三个主要度量：有效性，效率和可用性。本文的目的是通过对Web信息搜索的实验研究来实现的。为受试者提供了有限时间的四项任务，所有任务都需要一些有关环境问题的领域知识。通过问卷调查，记录的数据和退出访谈收集了详细的用户行为。研究结果表明，调解条件或展示条件对这三种措施影响不大。但是，通过考虑三个重要因素的进一步分析，所有这些措施都产生了有趣的结果。任务的顺序，主题的难易程度和系统使用的顺序。当用户执行更多的信息搜索任务时，给定主题容易/困难时以及提供搜索者时，中介系统和组合显示比非中介系统和线性排名列表更为有效，高效或有用。在使用中介IR系统之前，对熟悉的IR系统有初步的经验。最终，事实证明，由于中介的组合和组合的显示非常复杂，因此对于Web搜索而言似乎并不理想。总之，这项研究有助于更好地理解中介系统和/或组合显示如何支持Web信息用户。这项研究的结果提出了涉及Web IR系统设计的中介条件和显示条件的其他研究议程。

著录项

  • 作者

    Lee, Hyuk-Jin.;

  • 作者单位

    Rutgers The State University of New Jersey - New Brunswick.;

  • 授予单位 Rutgers The State University of New Jersey - New Brunswick.;
  • 学科 Library Science.; Information Science.
  • 学位 Ph.D.
  • 年度 2006
  • 页码 435 p.
  • 总页数 435
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 图书馆学、图书馆事业;信息与知识传播;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号