Multilingual NLP and Text Mining for Cultural and Geopolitical Analytics

Developing multilingual NLP and computational text analytics for long-horizon cultural change, geopolitical discourse, and policy-relevant historical data.

Research at a Glance

Topic Data and Methods Main Finding Key Papers
Cultural association shifts in Chinese texts Multi-decade Chinese printed corpora, semantic association analysis Results do not support a simple “rising positive individualism” narrative for 1950 to 1999; some collectivist associations remain durable. (Hamamura et al., 2021; Hamamura et al., 2022)
Embedding geometry for information/cultural space Word-embedding geometry and semantic-space modeling Embedding-space methods provide computational tools for quantifying cocoon-like semantic structures. (Xu et al., 2020)
Geopolitics in language: Sino-Japanese relations Chinese corpora, Japanese parliamentary records, literature review Sentiment/discourse patterns co-evolve with geopolitical context, including war-memory and maritime-dispute framing. (Hamamura et al., 2025)
Historical advertising under conflict 10,094 ads in modern Chinese newspapers, comparative modeling Military conflict is associated with lower globalized framing in ads; market familiarity moderates the effect. (Sun et al., 2024)

Methods Stack

Category Methods
Computation Diachronic embeddings, topic modeling, temporal semantic analysis
Data Engineering Historical corpus construction, multilingual normalization
Inference Longitudinal discourse comparison, multi-source triangulation

Program Direction

  • Build robust multilingual NLP methods for socially grounded and policy-relevant analytics.
  • Pair method papers with domain studies in culture, geopolitics, and communication.
  • Supervise PhD projects on corpus methods, interpretability, and cross-domain validation.

References

2025

  1. J. Soc. Issues
    hamamura2025geopolitics.jpg
    Geopolitics in language: A psychological view of Sino-Japanese relations over time
    T. Hamamura, T. Kobayashi, Zhicong Chen, and 2 more authors
    Journal of Social Issues, 2025

2024

  1. CJC
    sun2024globalization.jpg
    Globalization in International Tensions: The Impact of Military Conflicts on Cultural Orientations of Multinational Corporations’ Advertising in Modern China (1932–1937)
    Y. Sun, X. F. Yan, Y. Zhang, and 2 more authors
    Chinese Journal of Communication, 2024

2022

  1. Am. Psychol.
    hamamura2022reply.jpg
    Toward a better understanding of cultural change: Reply to Bao et al. (2022)
    T. Hamamura, C. S. Chan, S. X. Chen, and 3 more authors
    American Psychologist, 2022

2021

  1. Am. Psychol.
    hamamura2021individualism.jpg
    Individualism with Chinese characteristics? Discerning cultural shifts in China using 50 years of printed texts
    T. Hamamura, Zhicong Chen, C. S. Chan, and 2 more authors
    American Psychologist, 2021

2020

  1. arXiv
    The Geometry of Information Cocoon: Analyzing the Cultural Space with Word Embedding Models
    H. Xu, Zhicong Chen, R. Li, and 1 more author
    arXiv preprint arXiv:2007.10083, 2020