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portfolio
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publications
Published in Preprint, 2024
We evaluated how well static embeddings and contextual models capture enduring meanings and subtle semantic shifts in political text over time.
Citation as: Ruiyu ZHANG, Lin Nie, Ce Zhao, and Qingyang Chen. (2024). "Achieving Semantic Consistency: Contextualized Word Representations for Political Text Analysis." Preprint. arXiv:2412.04505. https://arxiv.org/abs/2412.04505
Published in The China Quarterly, 2024
Our study explores how the double-hundred action programme is reshaping recruitment, performance evaluation, and remuneration practices in China state-owned enterprises.
Citation as: Ruiyu ZHANG and Chengpang Lee. (2024). "From Cadres to Managers: The Double-hundred Action Programme and China's State-owned Enterprise Reform." The China Quarterly. https://doi.org/10.1017/S0305741024000481. https://doi.org/10.1017/S0305741024000481
Published in Preprint, 2025
We explored the relationship between eco-efficiency and local governments engagement in collaborative environmental governance with citizens.
Citation as: Ruiyu ZHANG, Lin Nie, Ce Zhao, and Xin Zhao. (2025). "Eco-efficiency as a Catalyst for Citizen Co-production: Evidence from Chinese Cities." Preprint. arXiv:2504.13290. https://arxiv.org/abs/2504.13290
Published in Preprint, 2025
We developed HEAS as a framework to combine layered agent-based modeling with evolutionary optimization.
Citation as: Ruiyu ZHANG, Lin Nie, and Xin Zhao. (2025). "HEAS: Hierarchical Evolutionary Agent Simulation Framework for Cross-Scale Modeling and Multi-Objective Search." Preprint. arXiv:2508.15555. https://arxiv.org/abs/2508.15555
Published in Preprint, 2025
We designed SE-VAE to embed measurement structure directly into a variational autoencoder, separating construct-specific signals from global nuisance variation.
Citation as: Ruiyu ZHANG, Ce Zhao, Xin Zhao, Lin Nie, and Wai-Fung Lam. (2025). "Structural Equation-VAE: Disentangled Latent Representations for Tabular Data." Preprint. arXiv:2508.06347. https://arxiv.org/abs/2508.06347
Published in Corporate Social Responsibility and Environmental Management, 2025
Our study examines what drives small and medium-sized enterprises to adopt sustainability practices, and how social networks shape these dynamics.
Citation as: Ruiyu ZHANG, Lin Nie, and Wai-Fung Lam. (2025). "Sustainability of Small and Medium-Sized Enterprises in Hong Kong: Drivers and the Moderating Role of Social Network." Corporate Social Responsibility and Environmental Management. https://doi.org/10.1002/csr.3207. https://doi.org/10.1002/csr.3207
Published in Information Polity, 2026
Our study integrates critical AI scholarship with relational communication theories to explain how AI language modifications shape the quality of government-citizen communication.
Citation as: Ruiyu ZHANG and Lin Nie. (2026). "Enhancing Communication Quality between Government and Citizens: The Role of AI Modification." Information Polity. https://doi.org/10.1177/15701255261427986. https://doi.org/10.1177/15701255261427986
Published in Preprint, 2026
We propose PEARL, a label-efficient method that softly aligns embeddings toward class prototypes to improve local neighborhood structure without changing dimensionality or requiring heavy retraining.
Citation as: Ruiyu ZHANG, Lin Nie, Wai-Fung Lam, Qihao Wang, and Xin Zhao. (2026). "PEARL: Prototype-Enhanced Alignment for Label-Efficient Representation Learning with Deployment-Driven Insights from Digital Governance Communication Systems." Preprint. arXiv:2601.17495. https://arxiv.org/abs/2601.17495
talks
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teaching
Undergraduate course, University 1, Department, 2014
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Workshop, University 1, Department, 2015
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