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中文摘要：
网络信息的膨胀导致了文献检索的困难，而检索效率的提高则依赖于其组织方法的改善。主题地图是适应信息资源的网络化而出现的一种新的组织技术，可以较好地解决大量无序、非结构化信息的组织问题。本文提出一个基于主题地图的多层文献组织模型（TMDOM），通过从文献内容中概化出主题并定义主题之间的关联，将领域内主要的概念及其关联以合理的层次结构体现出来，以实现对文献资源的有效组织。试验结果证明了这种组织方法的优越性，通过主题之间的各种关联，实现了有效的信息导航。
英文摘要：
Infoglut results in difficulties of document retrieval and the efficiency of document retrieval relies heavily upon the effective organizational methods. The Topic Map （TM）, as a new technology adapted for on-line information resources, can organize huge amount of unstructured information in a good way so it is introduced into our study. In this paper, a multilayer Topic- Map-based Document Organization Model （TMDOM） is proposed, which can organize the underlying topics induced from domain document contents and their associations as a hierarchical structure so effective organization 6f documents could come true. At last, an experiment is designed and implemented to evaluate the performance of the proposed model. The experimental results show that the efficient knowledge navigation can be made through building various associations between topics.
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