融入限定关系的专利关键词抽取方法<sup>*</sup>

doi:10.11925/infotech.2096-3467.2021.1458

数据分析与知识发现

2022, Vol. 6

Issue (10): 57-67 https://doi.org/10.11925/infotech.2096-3467.2021.1458

研究论文

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融入限定关系的专利关键词抽取方法^*

俞琰(

),朱晟忱

南京工业大学信息管理与技术研究所南京 210009

Extracting Patent Keywords by Integrating Restriction Relationship

Yu Yan(

),Zhu Shengchen

Institute of the Information Management and Technology, Nanjing Tech University, Nanjing 210009, China

摘要
图/表
参考文献
相关文章
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摘要

【目的】 通过考虑专利权利要求特征，提高专利关键词抽取准确性。【方法】 挖掘出专利权利要求中技术特征间的限定关系，将限定关系融入基于图的专利关键词抽取方法中，以抽取专利关键词。【结果】 在USPTO专利数据集和Baiten专利数据集上进行实验，实验结果表明所提方法的MRR指标较传统的TextRank方法分别相对提升了31.79%（USPTO）和33.81%（Baiten）。【局限】 实验分析的数据需要进一步扩大。【结论】 融入专利权利要求的限定关系信息能够显著提高专利关键词抽取的准确性。

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	俞琰
	朱晟忱

关键词 ：专利抽取, 限定关系, 权利要求, TextRank

Abstract：

[Objective] This paper tries to improve the accuracy of patent keyword extraction with the characteristics of patent claims. [Methods] We examined the restriction relationship between technical features of patent claims. Then, we integrated these relationship into the patent keyword extraction method based on graph. [Results] We examined our model with the USPTO and Baiten data sets for patents. The MRR index of our method was 31.79% (USPTO) and 33.81% (Baiten) higher than the traditional TextRank method. [Limitations] The data of our experimental analysis need to be further expanded. [Conclusions] The proposed method could significantly improve the accuracy of patent keyword extraction.

Key words： PatentExtraction Restriction Relationship Claim TextRank

收稿日期: 2021-12-27 出版日期: 2022-11-16

ZTFLH:

TP393 G250

基金资助:国家社会科学基金项目(17BTQ059)

通讯作者: 俞琰,ORCID：0000-0002-9654-8614 E-mail: yuyanyuyan2004@126.com

引用本文:

俞琰, 朱晟忱. 融入限定关系的专利关键词抽取方法^*[J]. 数据分析与知识发现, 2022, 6(10): 57-67.
Yu Yan, Zhu Shengchen. Extracting Patent Keywords by Integrating Restriction Relationship. Data Analysis and Knowledge Discovery, 2022, 6(10): 57-67.

链接本文:

https://manu44.magtech.com.cn/Jwk_infotech_wk3/CN/10.11925/infotech.2096-3467.2021.1458 或 https://manu44.magtech.com.cn/Jwk_infotech_wk3/CN/Y2022/V6/I10/57

Fig.1 限定关系示图

Fig.2 示例专利权利要求中的限定关系
（注：绿色表示线索短语，红色表示父技术特征，蓝色表示子技术特征。）

Fig.3 图构建示例

Table 1 数据集信息

Table 2 候选关键词作为顶点效果评估结果

Table 3 候选关键词作为顶点效果评估实例

Fig.4 限定边效果评估结果

Table4 限定边效果评估示例

Fig.5 具有有向限定边的图示例

Table 5 相关方法比较结果

Fig.6 示例专利关键词位置

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