Average text similarity of patents that share at least one common non-patent citation (I(Common NPC protect ≥ 1) = T), compared with patents that do not (I(Common NPC protect ≥ 1) = F).
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资源简介：
Because random patent pairs have very sparse citation relationships, this uses a sample of patents that already share at least one common patent backward citation, which is why the baseline comparison group already has a high level of similarity.
创建时间：
2020-07-09
