| 试论信息检索系统的后控制机制 |
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| 引用本文： | 赵丹群.试论信息检索系统的后控制机制[J].图书情报工作,2007,51(1):60-63. |
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| 作者姓名： | 赵丹群 |
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| 作者单位： | 北京大学信息管理系 |
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| 摘 要： | 首先基于对信息检索概念的理解与认知，提出检索系统的控制机制问题及其重要性;然后选择以“后控制”机制为重点，将其细分为三类不同的后控制方式，即查找前的提问式构造与扩展控制、查找中的检索过程控制、查找后的检索结果控制与优化，分别对它们给予分析和阐述，必要时辅以实例说明;最后对后控制问题的未来研究重点及方向进行简单讨论。
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| 关 键 词： | 信息检索 检索系统 后控制 |
| 收稿时间： | 2006-07-17 |
| 修稿时间： | 2006-07-152006-09-04 |
Discussion on Post-controlling Mechanism in Information Retrieval Systems |
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| Zhao Danqun.Discussion on Post-controlling Mechanism in Information Retrieval Systems[J].Library and Information Service,2007,51(1):60-63. |
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| Authors: | Zhao Danqun |
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| Institution: | Department of Information Management, Peking University, Beijing 100871 |
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| Abstract: | Based on the concept of information retrieval(IR), this paper brings up the issue of controlling mechanism in information retrieval system(IRS) and its importance. And then taking post-controlling mechanism of IRS as the key points, the paper gives a detailed exploration to the three kinds of post-controlling modes respectively, namely, query building and expansion before searching, retrieval process control, results control and perfection after searching with necessary examples. The focus and directions of post-controlling research are also discussed in the paper. |
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| Keywords: | information retrieval(IR) information retrieval system(IRS) post-controlling |
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