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Video
Human brain stores tremendous amount of knowledge about this world, which is the foundation of object recognition, language, thought, and reasoning. What’s the neural codes of semantic knowledge representation? Is the knowledge “roses are red” simply the memory trace of perceiving the color of roses, stored in the brain circuits within color-sensitive neural systems? What about knowledge that is not directly perceived by senses, such as “freedom” or “rationality”? I will present a set of studies from my lab that addresses this issue, including object color (and other visual) knowledge in several populations (congenitally blind humans, color blind humans, and typically developed macaques), and semantic neural representation in individuals with early language experience deprivation. The findings point to the existence of two different types of knowledge coding in different regions of the human brain – one conservative, based on sensory experiences, and one based on language-derived machinery that support fully nonsensory information. The relationship between these two types of knowledge coding will be discussed.
Event date: 09/04/2025
Speaker: Professor Yanchao BI (Peking University)
Hosted by: Faculty of Humanities
- Subjects:
- Language and Languages
- Keywords:
- Neurobiology Semantics Brain
- Resource Type:
- Video
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Video
In this talk I examine the role of humanities research where nearly every aspect of human experience is turned into data and analysed, in many cases to model, predict and modify behaviour. As a result and through advances in computing technology, artificial intelligence systems have colonised traditional areas of humanities research, including linguistics and language studies. Today, large multimodal models (LMM) can process text, images, videos and sound, potentially leading to the development of algorithmic approaches to modelling society and culture. In this talk, I explore how humanities researchers can leverage the benefits and mitigate the risks of these latest technological developments and prepare scholars for the challenges which lie ahead. I provide some examples from the Digital Media and Society Institute (DMSI) at the University of Liverpool where communication and media researchers are working with data scientists to investigate how multimodal information is re-contextualised across online media platforms. This includes new methods for studying information distortions (e.g. misinformation, disinformation and memes) and public reactions to key events.
Event date: 31/03/2025
Speaker: Professor Kay O’HALLORAN (University of Liverpool)
Hosted by: Faculty of Humanities
- Keywords:
- Artificial intelligence Research Humanities -- Research
- Resource Type:
- Video
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Video
People are now regularly interacting with voice assistants (VAs), which are conversational agents that allow users to use spoken language to interface with a machine to complete tasks. The huge adoption and daily use of VAs by millions of people - and its increasing use for financial, healthcare, and educational applications - raises important questions about the linguistic and social factors that affect spoken language interactions with machines.
We are exploring issues of linguistic and social biases that impact speech communication in human-computer interaction - particularly during cross-language transfer, learning, or adaptation of some kind. In this talk, I will present two case studies illustrating some of our most recent work in this area. The first study looks at a case of cross-language ASR transfer. We find systematic linguistic and phonetic disparities in language transfer by machines trained on a source language to speech recognition of a novel target, low-resource language. The second study looks at a case of social bias in word learning by humans using voice-enabled apps. We find the word learning is inhibited when there are mismatching social cues presented by the voice and the linguistic information.
Together, along with highlights from other ongoing work in my lab, the aim of this talk is to underscore that human-computer linguistic communication is a rich testing ground for investigating issues in speech and language variation. Examining linguistic variation during HCI can enrich and elaborate linguistic theory, as well as present opportunities for linguists to provide insights for improving both the function and fairness of these technologies.
Event date: 25/03/2025
Speaker: Professor. Georgia ZELLOU (University of California, Davis)
Hosted by: Faculty of Humanities
- Subjects:
- Communication and Language and Languages
- Keywords:
- Linguistics English language -- Variation Speech processing systems English language -- Spoken English Human-computer interaction
- Resource Type:
- Video
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Video
In this talk, I will present the results of several studies examining qualitative and quantitative empirical research articles from applied linguistics. The studies use both corpus-based analyses and rhetorical genre analysis to describe similarities and differences across the two paradigms. Each of the studies draws on a corpus of published studies from journals that regularly publish both quantitative and qualitative articles on the topic of language learning and teaching.
I first describe the compilation of the corpus, which currently includes 863 studies from 2013 to 2023, and explain some of the challenges involved in using copyrighted materials in a time of calls for open science. Next, I explain the rationale for comparing qualitative and quantitative research in a subfield of applied linguistics. Specifically, I talk about the challenges of a field in which there appears to be a widening divide in the nature of research in the two paradigms along with unsubstantiated claims in research manuals characterizing the two paradigms.
The bulk of the talk will focus on my and my collaborators’ research agenda using our created corpus. Two of the studies focus on the role of theory in the empirical studies. The first study used a corpus-based analysis of the frequency and collocations of the lemma theor- while the second used rhetorical move analysis to show how theory was used in structuring literature reviews. Both studies revealed differences in the role of theory in the two paradigms that show how language choice and rhetorical moves reflect their epistemologies. The third study focused on citation use and revealed some differences, but more similarities. Finally, we have two studies in progress examining article structure and lexical bundles. Taken together, both studies show that quantitative research is more structured and predictable. I end by suggesting possible extensions of our research using qualitative methods.
The final part of this talk will explain the relevance of this research to both teaching academic writing and to the field of applied linguistics. With regard to teaching writing, I will give specific examples of how the various analyses used in the five studies can be transferred to heterogeneous writing classes to help students explore conventions in their own fields. Second, I explain how the studies suggest a widening gap between the two paradigms and how this gap presents problems for graduate programs, journals, and professional organizations, all of which, I argue, need to be more sensitive to acknowledging research in both paradigms.
Event date: 12/03/2025
Speaker: Professor Charlene POLIO (Michigan State University)
Hosted by: Faculty of Humanities
- Subjects:
- English Language
- Keywords:
- Applied linguistics -- Research Corpora (Linguistics) Academic writing
- Resource Type:
- Video
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Video
Prof. SO Kwok-fai, Director of GHM Institute of CNS Regeneration at Jinan University, Guangzhou, China, delivered the 37th PAIR Distinguished Lecture titled “Mental Health and Lifestyle Intervention” on 17 April 2025 on the PolyU campus. The lecture attracted about 100 participants to join in person and captivated an online audience of over 13,300 from different countries and regions who watched the live broadcast on multiple social media platforms, including Bilibili, WeChat, Weibo and YouTube.
The lecture commenced with a warm welcome by Prof. ZHANG Weixiong, Associate Director of PAIR, followed by an introduction of the speaker by Prof. WONG Kwok-yin, Vice President (Education). Prof. So kickstarted his presentation by emphasising the importance of disease prevention in safeguarding human health. He highlighted that rapid economic development, an increasingly fast-paced lifestyle, heightened social competition and other factors have contributed to a rise in mental health challenges, chronic conditions, sub-health syndromes and aging-related diseases.
Prof. So elaborated on several neuropathological mechanisms, such as monoamine neurotransmitters, neural circuits, and neuroglial cells. In addition to these central factors, he also discussed how circulating hormones, including glucocorticoids, profoundly influence mental functions, suggesting the interplay between peripheral tissues and central nervous system nuclei.
Additionally, he highlighted the antidepressant effects of light therapy, underscoring the role of the nucleus reuniens in mediating the spatial memory-enhancing outcomes of such treatment. Furthermore, Prof. So presented evidence that taking glucagon-like peptides can alleviate symptoms of depression and reduce the side effects of traditional treatments on the body.
Last but not least, Prof. So underscored the need for healthcare focus to shift from curative to preventive medicine, advocating lifestyle strategies such as regular exercise, light therapy and using supplements derived from goji glycopeptide as effective preventive measures.
The event concluded with a dynamic question-and-answer session moderated by Prof. Sylvia CHEN, Interim Director of Mental Health Research Centre (MHRC) and Associate Dean of Faculty of Health and Social Sciences (FHSS), where attendees engaged in in-depth discussions with Prof. So.
Event date: 17/04/2025
Speaker: Prof. SO Kwok-Fai
Hosted by: PolyU Academy for Interdisciplinary Research
- Subjects:
- Health Sciences
- Keywords:
- Medicine Preventive Health promotion Mental health
- Resource Type:
- Video
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Video
The Hong Kong Polytechnic University (PolyU) and the Hong Kong Alumni Association of Beijing Universities (HKAABJU) co-organised the “Together with Scientists” thematic event, as part of the key events of the second Hong Kong World Youth Science Conference 2025. Dr Elizabeth LEE, HKAABJU President, accompanied Prof. Andre GEIM, 2010 Nobel Prize in Physics and Prof. Harvey James ALTER, 2020 Nobel Prize in Physiology or Medicine to the PolyU campus, where the two Nobel laureates shared their outstanding research outcomes and unique insights in their respective fields of research during their keynote presentations. The event aimed to promote academic exchanges and inspire innovative thinking, attracting over 150 faculty members, students, scholars and researchers onsite, and more than 126,000 participants who joined online through various social media platforms to explore cutting-edge scientific issues.
Prof. Jin-Guang TENG, PolyU President expressed his gratitude to Prof. Geim and Prof. Alter for sharing their invaluable insights with the participants. He added, “As an innovative world-class university, PolyU is dedicated to advancing its research endeavours. The University has established numerous research institutes and research centres, including the PolyU Academy for Interdisciplinary Research and, more recently, the PolyU Academy for Artificial Intelligence. PolyU is also actively pursuing the opportunity to establish Hong Kong’s third medical school, with AI as a key enabler.”
Prof. Geim delivered a keynote presentation on “Wonder Materials”, sharing applications of graphene. Together with physicist Konstantin Novoselov, he was awarded the 2010 Nobel Prize in Physics for their groundbreaking contributions to the study of two-dimensional graphene materials. He is Director of the Manchester Centre for Mesoscience and Nanotechnology, Director of the Shenzhen Geim Graphene Center, Tsinghua–Berkeley Shenzhen Institute, Foreign Academician of the Chinese Academy of Sciences, Fellow of the Royal Society and Foreign Academician of the National Academy of Sciences, the United States. His research interests range from nanomaterials to buoyancy quantum states.
Prof. Alter shared his thoughts and experience on the theme “Roadmap to Success”. He was the co-recipient of the 2020 Nobel Prize in Physiology or Medicine, along with the virologists Michael Houghton and Charles M. Rice for their contribution to the discovery of the Hepatitis C virus. His research proved that Hepatitis C is a separate viral disease and enabled development of testing methods that help ensure blood safety. His work has paved the way for the diagnosis, treatment and prevention of Hepatitis C, saving the lives of millions.
During the subsequent panel discussion and Q&A session, the two speakers shared their insights on scientific research, encouraging the students and young researchers to continue to explore and advance in their academic pursuits.
Event date: 14/04/2025
Speaker: Prof. Andre GEIM, Prof. Harvey James ALTER
Hosted by: The Hong Kong Polytechnic University (PolyU) and the Hong Kong Alumni Association of Beijing Universities (HKAABJU)
- Keywords:
- Nobel Prizes Graphene Medical scientists Scientists
- Resource Type:
- Video
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Video
Prof. Jesse ZHU, Senior Advisor to the President, Eastern Institute of Technology, Ningbo, China, delivered the 36th PAIR Distinguished Lecture titled “Research Strategy and Planning: How to Prepare a Research Career?” on 12 March 2025 on the PolyU campus. The lecture attracted over 110 participants to join in person and captivated an online audience of over 13,300 from different countries and regions who watched the live broadcast on multiple social media platforms, including Bilibili, WeChat, Weibo and YouTube.
Prof. Zhu kickstarted his presentation by sharing his personal anecdotes from his journey through academia and industry, emphasising that innovation, curiosity and a commitment to societal impact have guided his research trajectory. He stressed the importance of identifying meaningful research themes to ensure both academic rigor and real-world relevance, noting, “True scientific breakthroughs emerge when we chase fundamental truths, not just external accolades.”
Prof. Zhu illustrated these principles with examples from his cross-disciplinary work, including (i) healthcare innovation, the development of a rotating fluidiser which is a device that enable uniform particle suspension to optimise drug delivery systems; (ii) sustainable manufacturing, the application of nanoparticles in paint production to enhance flow efficiency and reduce environmental waste; and (iii) urban sustainability, pioneering compact wastewater treatment technologies for space-constrained urban environments.
In conclusion, Prof. Zhu underscored the transformative role of research in advancing global well-being, advocating for a balance between theoretical exploration and applied solutions. He urged students to cultivate resilience, collaborate across disciplines, and align their work with societal needs, that is, “persistence and purpose are the bedrock of a fulfilling research career.”
The event concluded with a lively question-and-answer session moderated by Prof. Chen, where attendees explored topics ranging from funding strategies to various considerations in technology development with Prof. Zhu.
Event date: 12/03/2025
Speaker: Prof. Jesse ZHU
Hosted by: PolyU Academy for Interdisciplinary Research
- Keywords:
- Research -- Methodology Research -- Vocational guidance Science--Vocational guidance
- Resource Type:
- Video
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Video
The PolyU Academy for Interdisciplinary Research (PAIR) of The Hong Kong Polytechnic University (PolyU) today hosted its inaugural Public Forum for Research and Innovation. Titled “DeepSeek and Beyond”, the keynote speech was delivered by Prof. YANG Hongxia, Associate Dean (Global Engagement) of the PolyU Faculty of Computer and Mathematical Sciences and Professor of the Department of Computing, who highlighted the latest developments in artificial intelligence (AI). The event attracted over a thousand participants, including faculty members, students, alumni, and leaders from the innovation and technology sector, as well as academics and the public. Additionally, over 390,000 viewers tuned in through the live streaming platforms.
The Forum began with a welcoming speech delivered by Prof. CHEN Qingyan, Director of PAIR and Chair Professor of Building Thermal Science of the PolyU Department of Building Environment and Energy Engineering. This was followed by Prof. ZHANG Chenqi, Chair Professor of Artificial Intelligence of the PolyU Department of Data Science and Artificial Intelligence, and Director of the PolyU Shenzhen Research Institute introducing the speaker.
Prof. Zhang said, “The development of large models is at the core of competition in the AI wave. DeepSeek has demonstrated that high-performance AI models can be achieved using fewer and less advanced graphics processing units (GPUs), demonstrating that cutting-edge AI technology can be realised through the optimisation of algorithms.”
The large AI model developed by the mainland Chinese startup DeepSeek has garnered wide acclaim around the world for its low-cost, high-performance, and open-source framework, disrupting the traditional “computing power-first” logic of AI model training. At the Forum, Prof. Yang highlighted the potential of generative AI (GenAI), adding that it presents abundant opportunities for various sectors, including healthcare, finance, manufacturing, retail, media and fashion, and for applications in medical imaging analysis, fraud detection, predictive maintenance, retail inventory management, content creation, and design and marketing.
Prof. Yang also recounted the evolution of AI and shared her professional milestones with the audience, notably the development of the M6 large model, which trained a 10-trillion-parameters model using just 512 GPUs. Prof. Yang further elaborated on how her GenAI project, Co-GenAI, improves the accessibility of AI technology while minimising dependence on large-scale centralised computing resources, thereby transforming the trajectory of AI progress. This ground-breaking effort has positioned Hong Kong and the Mainland at the forefront of global advancement in GenAI.
Moderated by Prof. Zhang Chenqi, a panel discussion was also held, featuring esteemed panellists Prof. Yang Hongxia and Prof. LI Qing, Head and Chair Professor of Data Science of the PolyU Department of Computing, and Co-Director of the Research Centre for Digital Transformation of Tourism. The scholars discussed the opportunities and challenges that advancements in AI present for higher education and research. They also engaged in fruitful discussion with participants during the question-and-answer session. The topics included the application of AI in industry, the regulation of information, its impact on the employment environment and economic development, and the integration of AI technologies.
PolyU is committed to advancing AI education and research. In January 2025, the University established the Faculty of Computer and Mathematical Sciences with a vision to lead global advancements in digital transformation and AI through distinguished education, research, and knowledge transfer.
Event date: 11/03/2025
Speaker: Prof. YANG Hongxia
Hosted by: PolyU Academy for Interdisciplinary Research
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Video
Prof. John A. ROGERS from Northwestern University, United States, delivered the 35th PAIR Distinguished Lecture titled “Bioelectronics – Frontiers in the Integration of Technology with Biology” on 19 February 2025 on the PolyU campus. The lecture attracted over 130 participants to join in person and captivated an online audience of over 12,800 from different countries and regions who watched the live broadcast on multiple social media platforms, including Bilibili, WeChat, Weibo and YouTube.
The lecture began with a warm welcome and introduction of the speaker by Prof. CHEN Qingyan, Director of PAIR. Prof. Rogers kickstarted his presentation by providing an overview of the advanced electronic technologies designed for stable, intimate integration with living organisms. These technologies serve as the foundations for patient monitoring and disease treatment. Specifically, the ability to inject miniaturised, biocompatible electronic systems into soft tissues or laminate them onto vital organs opens unique opportunities in tracking and manipulating biological activity, with significant implications in human healthcare.
Prof. Rogers also discussed the core concepts in materials science, circuit design, and manufacturing that underpin these technologies, including bioresorbable or “transient” devices engineered to dissolve in the body in sync with natural processes. He also presented several joint interdisciplinary projects with long-time collaborator Prof. HUANG Yonggang, including skin-like wireless devices for tracking vital signs and bioelectronic “medicines” for neuroregeneration and temporary cardiac pacing.
Following the presentation was a question-and-answer session moderated by Prof. ZHENG Zijian, Associate Director of the Research Institute for Intelligent Wearable Systems (RI-IWEAR) and Chair Professor of Soft Materials and Devices in the Department of Applied Biology and Chemical Technology. The audience engaged in a productive discussion with Prof. Rogers.
Event date: 19/02/2025
Speaker: Prof. John A. ROGERS
Hosted by: PolyU Academy for Interdisciplinary Research
- Subjects:
- Biology
- Keywords:
- Drug delivery systems Biomedical engineering Bioelectronics Patient monitoring
- Resource Type:
- Video
-
Video
The lecture commenced with a warm welcome and introduction of the speaker by Prof. CHEN Qingyan, Director of PAIR. Prof. McCulloch kickstarted his presentation by giving a brief overview of the current molecular designs of organic semiconductor polymers for charge transport. He explained how they enable organic thin film transistors to achieve high charge carrier mobility and their applications in flexible screens and other electronic devices. He then elaborated on the molecular characteristics of the indacenodithiophene-co-benzothiadiazole copolymer, a semiconductor polymer that exhibits high carrier mobility and is commonly used in organic transistors.
Prof. McCulloch also emphasised the importance of “conformational coplanarity” and “side chain assisted self-assembly”. These features help enhance one-dimensional transport along the “conjugated polymer backbone” and form sterically free “crossing points”, allowing charges to hop between chains. He further highlighted that current research has shown that the molecular conformation and film microstructure are influenced by the design and processing conditions of organic semiconductor polymers, and these significant findings can help achieve optimal charge transport properties.
Following the presentation was a question-and-answer session moderated by Prof. YAN Feng, Associate Director of the Research Institute for Intelligent Wearable Systems (RI-IWEAR) and Chair Professor of Organic Electronics in the Department of Applied Physics. The audience engaged in a productive discussion with Prof. McCulloch.
Event date: 14/01/2025
Speaker: Prof. Iain McCULLOCH (Princeton University)
Hosted by: PolyU Academy for Interdisciplinary Research
- Subjects:
- Chemistry
- Keywords:
- Organic semiconductors Polymers Charge transfer
- Resource Type:
- Video