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          <dc:title>Patent text preprocessing code</dc:title>
          <dc:creator>Zhihao Wang (24787009)</dc:creator>
          <dc:creator>Rui Xue (16529724)</dc:creator>
          <dc:creator>Fengyun Zhang (24844366)</dc:creator>
          <dc:creator>Jingying Zhang (1637071)</dc:creator>
          <dc:subject>Industry economics and industrial organisation</dc:subject>
          <dc:subject>preprocessing</dc:subject>
          <dc:description>&lt;p dir="ltr"&gt;This script preprocesses Chinese patent records from 1985 to 2024 by selecting granted invention patents and applying Jieba tokenization to their combined titles, abstracts, and main claims. It removes stopwords, purely numeric tokens, and single Chinese characters, then exports annual files containing each patent’s retained terms and their occurrence counts.&lt;/p&gt;</dc:description>
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