| 网络环境下,国外专利的有偿、无偿信息源的比较研究 |
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| 引用本文： | 顾震宇,林鹤.网络环境下,国外专利的有偿、无偿信息源的比较研究[J].情报科学,2004,22(3):320-326. |
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| 作者姓名： | 顾震宇 林鹤 |
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| 作者单位： | 上海图书馆上海科学技术情报研究所,上海,200031 |
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| 摘 要： | 本文通过对网络环境下专利的有偿信息源和无偿信息源的剖析，介绍了它们各自的优势和弱点，从检索入口、检索指令、数据质量、数据库收录量、可靠性、检索结果以及检索成本等多个方面进行了对比。通过对比分析，得出结论，并介绍了一种结合两种信息源优点、避免各自的缺点，进行有效的专利检索的方法。
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| 关 键 词： | 国外 专利信息源 有偿信息源 无偿信息源 网络信息 专利信息检索 数据库检索 |
| 文章编号： | 1007-7634(2004)03-0320-07 |
| 修稿时间： | 2003年6月4日 |
Comparison Research of Paid/Unpaid Information Sources of Foreign Patents under Network Environment |
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| Gu Zhenyu,Lin He.Comparison Research of Paid/Unpaid Information Sources of Foreign Patents under Network Environment[J].Information Science,2004,22(3):320-326. |
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| Authors: | Gu Zhenyu Lin He |
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| Abstract: | The authors dissect paid/unpaid information sources of foreign patents under network environment,and analyze their strengths and weaknesses respectively,followed with comparison on retrieval entrances,commands,data quality,reliability,file size,search results and costs etc.Finally,the authors express their comments based on their study,and suggest an efficient method for searching patents from these two information sources in the way of strengthening their advantages and avoiding their shortcomings respectively. |
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| Keywords: | Foreign patents Payable paid information sources Free information sources Retrieval |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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