Conclusion the information search system utilizing the presented model is believed to have higher accurate ratio and recall ratio.

结论利用此模型实现的信息检索系统进行信息检索时具有更高的准确率和查全率。

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In these cases, information-system usability is directly influenced by a user's ability to track along a search trail.

在这些情况下，用户沿搜索线索跟踪的能力会直接影响到信息系统的可用性。

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The Xapian component provides the core of the database functionality (for storing the information), and the search and retrieval system for finding words and word combinations (see Resources).

Xapian 组件提供了核心的数据库功能（存储信息）以及搜索和检索系统来查找单词和单词组合（参见 参考资料）。

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To provide answers that aren't already in Google's ever-expanding database, the company will blend new semantic-search technology with its current system to better recognize the value of information on websites and figure out which ones to show in search results.

WSJ: Google Gives Search a Refresh

Usually, you explore data in one system, analyze it in another, search for more related information in another, and then take action in still another.

FORBES: A Vision for Unifying Access to Data and Documents

Two main initiatives are National Academic Research and Collaborations Information System ( NARCIS): the national portal for those who are in search of information about researchers and their work and Data Archiving and Networked Services ( DANS) to provide access to datasets by developing data infrastructures in organisations.

UNESCO: Global Open Access Portal