对比两个时期工会的社区行动话语，发现模式差异显著。
Service, Solidarity, and Self-Help: A Comparative Topic Modeling Analysis of Community Unionism in the Boot and Shoe Union and Unite Community
- 用BERTopic和cTF-IDF分析历史劳工文本主题
- 现代工会更关注社会正义，旧工会侧重内部管理
- 方法验证了NLP在历史档案研究中的价值
本文采用BERTopic主题建模与cTF-IDF加权，结合词频分析，比较20世纪20年代全国鞋靴工会（B&S）与21世纪10至20年代的联合社区（Unite Community）在社区工会（CU）实践中的话语特征。研究聚焦联盟构建、基层参与及工作场所外行动等关键维度。结果表明，尽管两者均涉及社区议题，但Unite Community discourse 更强调外部导向与社会正义，而B&S则集中于内部行政、劳资关系与成员服务，反映传统以服务为核心的工会模式。该研究还展示了现代自然语言处理技术对历史劳工档案研究的增益作用。结论指出，社区工会并非跨时代普遍模式，其实践形态随历史与组织背景显著分化。
原文摘要 · Abstract (English)
This paper presents a comparative analysis of community unionism (CU) in two distinct historical and organizational contexts: the National Boot and Shoe Union (B\&S) in the 1920s and Unite Community in the 2010s--2020s. Using BERTopic for thematic modeling and cTF-IDF weighting, alongside word frequency analysis, the study examines the extent to which each union's discourse aligns with key features of CU -- such as coalition-building, grassroots engagement, and action beyond the workplace. The results reveal significant differences in thematic focus and discursive coherence. While Unite Community demonstrates stronger alignment with outward-facing, social justice-oriented themes, the B\&S corpus emphasizes internal administration, industrial relations, and member services -- reflecting a more traditional, servicing-oriented union model. The analysis also highlights methodological insights, demonstrating how modern NLP techniques can enhance the study of historical labor archives. Ultimately, the findings suggest that while both unions engage with community-related themes, their underlying models of engagement diverge significantly, challenging assumptions about the continuity and universality of community unionism across time and sector.
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