[Purpose/significance] Some of the innovation cooperation opportunities between the two countries are explicit and direct, while others are potentially indirect. This paper attempts to find out the potential indirect innovation cooperation opportunities by measuring and analyzing the citation relationship between patents of the two countries. [Method/process] Citations between the patents which act as various roles in the global value chain, contain indirect cooperation such as mutual joint or complementary support. Patents acting as various roles have different functions and their IPC numbers are crossing different categories. Therefore, the algorithm of "citation crossing degree" was designed to measure and screen the patent citation relationship while the "citation crossing degree" reaches the preset threshold in the patent citation network. These screened relationships are used as the basic data for discovering indirect innovation cooperation opportunities. Taking Singapore's patents granted in China as samples, based on the measurement of citation crossing degree and manual interpretation, a series of indirect innovation cooperation opportunities between China and Singapore were found. [Result/conclusion] The method for discovering the indirect innovation cooperation opportunities between two countries based on the citation crossing degree measurement is proved to be effective by the experiment in this paper.
Li Rui
,
Oing Yangmei
,
Fan Jiujiang
. To Discover the Indirect Innovation Cooperation Opportunities Between Two Countries Based on their Patent Citation Crossing Degree[J]. Library and Information Service, 2020
, 64(23)
: 31
-39
.
DOI: 10.13266/j.issn.0252-3116.2020.23.004
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