Digital Society

Digital innovations are reshaping our society, economy, culture and lifestyle. The impact of the digital age and the potential use of new technological development to advance all aspects of our life is enormous, resulting in a need for vigorous interdisciplinary research, from the application of digital innovations to benefit our daily life to a thorough understanding of the relationship between digital advancement and society.

In response to the increasing demand for data scientists and engineers, CityU launched the School of Data Science (SDSC) and the Hong Kong Institute for Data Science. The first such freestanding academic unit focusing on data science in Hong Kong, SDSC serves as a campus-wide educational resource, fostering collaboration and training high-calibre students from data science-related industries.

 

New chips accelerate data transmission

 

 

The exciting discovery of a novel chip will help address the world’s increasing demand for faster internet connectivity, especially since the coronavirus outbreak. By deploying a powerful class of micro-comb named soliton crystals, Dr Chu Sai-tak, Associate Professor in the Department of Physics, has developed a new chip that plays a pivotal role in advancing the fastest data transmission speed on the internet. Such speed would allow 1,000 high-definition movies to be downloaded in less than a second.

Dr Chu’s accomplishments were recently published in Nature Communications and his research on chips has contributed to twelve high-impact papers published in the past nine years in prestigious journals such as Nature and Science.

 

First quantitative characterisation of the guarantee network’s evolution in a financial crisis

As Covid-19 continues to rage, the pandemic is not just a public health crisis. It has also severely affected the global economy and financial markets, which could trigger another financial crisis. In the face of acute challenges, researchers from SDSC and the Academy of Mathematics and Systems Science in the Chinese Academy of Sciences have examined the impact of the last global financial crisis and China's economic stimulus programme on the financial system. Using real-world data, they have modelled and characterised the evolution and dynamics of the whole guarantee network for the first time in order to better understand the potential systemic risks caused by firms’ failures. Their findings are particularly valuable for today’s situation.  

 

Pioneering most powerful computational platform among Hong Kong higher institutions

A new state-of-the-art High-Performance Computing (HPC) facility offering the most powerful computational platform ever assembled for a higher institution in Hong Kong has been launched at CityU. This HK$20 million facility named “CityU Burgundy” will dramatically increase computational power on campus and boost our researchers’ ability to make scientific breakthroughs. 

In comparison with the old HPC at CityU, the new HPC has increased computational power by almost 10 times with a combination of massive computation and graphical processing units, all of which are interconnected at high speed. The HPC capacity will support many computationally intensive research areas by cutting short the computational time from months to just hours. In fact, the theoretical maximum processing power is 1.1 petaflops, which is considered the most powerful among institutions in Hong Kong and Macau.

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