期刊论文

Computing Patent Similarity Based on Hierarchical Feature of Claims

中文

数据分析与知识发现

2096-3467

2024

8

2

33-43

10.11925/infotech.2096-3467.2022.1340

本校为其他机构

[目的]现有专利相似度计算方法对专利文本独有特征利用不足,并一定程度上忽视了专利内容与结构的特性,本文就上述问题提出一种新的专利相似度计算方法.[方法]通过权利要求层级特征生成技术组合句并进行信息核心度、信息丰富度的加权,兼顾技术内容范围与技术信息重点进行专利表示,在此基础上进行专利相似度计算.通过相关性指标与专利分类的对比实验证明方法的合理性.[结果]本文提出的方法较同类基准方法可以更充分地表达专利信息,更适用于专利相似度计算;技术组合句的重构对模型表现提升作用明显,在该基础上的信息核心度、信息丰富度的加权能进一步提高模型表现.[局限]仅在量子计算领域进行实验,...

[Objective]This paper proposes a new model to compute patent similarity,which fully leverages the characteristics of patent texts and their structural and context features.[Methods]First,we used technical compound sentences,the weighting of information core degree,and information richness to represent patents.Then,we calculated patent-to-patent similarity with the representation.Finally,we conducted comparative experiments with correlation scores and patent classification.[Results]The proposed method outperformed benchmark methods in computing patent similarities.The technical compound sentenc...