Asymmetric technological distance measure based on language model

被引：0

作者：

Tanaka, Katsuyuki ^{[1
]}

Kinkyo, Takuji ^{[1
]}

Hamori, Shigeyuki ^{[1
]}

机构：

[1] Kobe Univ, Grad Sch Econ, Kobe, Hyogo, Japan

来源：

APPLIED ECONOMICS LETTERS | 2019年 / 26卷 / 18期

关键词：

Distance measure; patent; language model;

D O I：

10.1080/13504851.2019.1584364

中图分类号：

F [经济];

学科分类号：

02 ;

摘要：

This article introduces a novel technological distance measure between companies based on their patent portfolios. We describe the technological position or characteristics of companies by applying the framework of language modelling technique in information retrieval on their patent portfolios. The proposed novel approach is an asymmetric measure and better captures the technological characteristic of a company and hence is a more accurate distance measure.

引用

页码：1548 / 1551

页数：4

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