Comparative Perspectives on Biosecurity Legislation: A Topic Modeling Analysis of China and Australia

Yang  Liu

This thesis conducts an in-depth comparative analysis of biosecurity legislation in China and Australia, utilizing advanced text mining techniques, including Latent Dirichlet Allocation (LDA) for topic modeling and time-dependent linear models for dynamic theme evaluation. Biosecurity, defined as measures that protect the economy, environment, and public health from biological threats, has become increasingly significant in the context of globalization and rising incidences of biological hazards. While China and Australia have created solid legal frameworks to address biosecurity hazards, their legislative methods differ significantly. This study will examine these differences and similarities by meticulously analyzing legislative documents to extract and evaluate the evolution of significant subjects in each country's biosecurity legislation. Chapter One provides a general introduction and literature review. Chapter two details the topic modeling technique LDA and its application in analyzing Australia's biosecurity law. Chapter three compares the Australian Biosecurity Act 2015 with the literature published by Australian scholars in this area. This comparison focuses on the topic level. Trend analysis is also conducted to find out the research trends of scholars. This chapter provides a new perspective on analyzing the research on biosecurity law. Chapter four is a study of China's biosecurity law. The method design route of this chapter is the same as that of Chapter Three. This can better obtain comparable results. Chapter five presents a detailed comparative analysis, synthesizing the findings from the LDA and time-dependent models to draw broader conclusions about the legislative evolution in both countries. The final chapter summarizes the overall findings and provides a general discussion. The study highlights the need for continuous legislative adaptation to address evolving biosecurity threats and encourages enhanced international cooperation to address these challenges comprehensively. The study concludes that while the biosecurity landscapes in China and Australia differ, both recognize the need for proactive and flexible legal frameworks to guard against risks. The paper contributes to the broader field of biosecurity governance by providing a detailed comparative perspective, highlighting areas for legislative improvement, and suggesting ways to strengthen international cooperation. Overall, this thesis provides valuable insights into the legislative approaches of China and Australia in managing biosecurity risks, offering a detailed thematic analysis that underscores the complexities and nuances of biosecurity law. By bridging the gap between legal analysis and advanced topic modeling techniques, the study maps the current state of biosecurity legislation. It illuminates potential avenues for future research and policy development. The findings underscore the critical role of adaptive legal frameworks in addressing the dynamic nature of biosecurity threats in a globalized world, advocating for ongoing innovation and international dialogue in biosecurity governance.

Comparative Perspectives on Biosecurity Legislation: A Topic Modeling Analysis of China and Australia

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