AI Patents in the United States and China: Measurement, Organization, and Knowledge Flows
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We develop a high-precision classifier to measure artificial intelligence (AI) patents by fine-tuning PatentSBERTa on manually labeled data from the USPTOs AI Patent Dataset. Our classifier substantially improves the existing USPTO approach, achieving 97.0% precision, 91.3% recall, and a 94.0% F1
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美国国家经济研究局创建时间：
2026-04-01
