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Video
Adaptive computation is of great importance in numerical simulations. The ideas for adaptive computations can be dated back to adaptive finite element methods in 1970s. In this talk, we shall first review some recent development for adaptive methods with some application. Then, we will propose a deep adaptive sampling method for solving PDEs where deep neural networks are utilized to approximate the solutions. In particular, we propose the failure informed PINNs (FI-PINNs), which can adaptively refine the training set with the goal of reducing the failure probability. Compared with the neural network approximation obtained with uniformly distributed collocation points, the proposed algorithms can significantly improve the accuracy, especially for low regularity and high-dimensional problems.
Event date: 18/10/2022
Speaker: Prof. Tao Tang (Beijing Normal University-Hong Kong Baptist University United International College)
Hosted by: Department of Applied Mathematics
- Subjects:
- Mathematics and Statistics
- Keywords:
- Sampling (Statistics) Differential equations Partial -- Numerical solutions Mathematical models Adaptive computing systems
- Resource Type:
- Video
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Video
We introduce a Dimension-Reduced Second-Order Method (DRSOM) for convex and nonconvex (unconstrained) optimization. Under a trust-region-like framework, our method preserves the convergence of the second-order method while using only Hessian-vector products in two directions. Moreover; the computational overhead remains comparable to the first-order such as the gradient descent method. We show that the method has a local super-linear convergence and a global convergence rate of 0(∈-3/2) to satisfy the first-order and second-order conditions under a commonly used approximated Hessian assumption. We further show that this assumption can be removed if we perform one step of the Krylov subspace method at the end of the algorithm, which makes DRSOM the first first-order-type algorithm to achieve this complexity bound. The applicability and performance of DRSOM are exhibited by various computational experiments in logistic regression, L2-Lp minimization, sensor network localization, neural network training, and policy optimization in reinforcement learning. For neural networks, our preliminary implementation seems to gain computational advantages in terms of training accuracy and iteration complexity over state-of-the-art first-order methods including SGD and ADAM. For policy optimization, our experiments show that DRSOM compares favorably with popular policy gradient methods in terms of the effectiveness and robustness.
Event date: 19/09/2022
Speaker: Prof. Yinyu Ye (Stanford University)
Hosted by: Department of Applied Mathematics
- Subjects:
- Mathematics and Statistics
- Keywords:
- Convex programming Nonconvex programming Mathematical optimization
- Resource Type:
- Video
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Video
Convex Matrix Optimization (MOP) arises in a wide variety of applications. The last three decades have seen dramatic advances in the theory and practice of matrix optimization because of its extremely powerful modeling capability. In particular, semidefinite programming (SP) and its generalizations have been widely used to model problems in applications such as combinatorial and polynomial optimization, covariance matrix estimation, matrix completion and sensor network localization. The first part of the talk will describe the primal-dual interior-point methods (IPMs) implemented in SDPT3 for solving medium scale SP, followed by inexact IPMs (with linear systems solved by iterative solvers) for large scale SDP and discussions on their inherent limitations. The second part will present algorithmic advances for solving large scale SDP based on the proximal-point or augmented Lagrangian framework In particular, we describe the design and implementation of an augmented Lagrangian based method (called SDPNAL+) for solving SDP problems with large number of linear constraints. The last part of the talk will focus on recent advances on using a combination of local search methods and convex lifting to solve low-rank factorization models of SP problems.
Event date: 11/10/2022
Speaker: Prof. Kim-Chuan Toh (National University of Singapore)
Hosted by: Department of Applied Mathematics
- Subjects:
- Mathematics and Statistics
- Keywords:
- Convex programming Semidefinite programming
- Resource Type:
- Video
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Video
The notion of expertise is integral to all forms of institutional and professional practice in many domains – in education, healthcare, social welfare, law, journalism, banking, information technology, marketing, translating and interpreting services etc. It is a concept addressed by scholars across many disciplines – cognitive science, sociology, anthropology, psychology, language/communication studies, among others. There are, however, enduring problems of definition, description and measurement of expertise. Some scholars draw attention to the ongoing ‘crisis in expertise’ and others pronounce the ‘death of expertise’ in contemporary society.
More humbly, I begin with a characterisation of professional expertise very broadly to include scientific, experiential, technological, organisational, legal, ethical and communicative knowledge. This then leads me to the notion of ‘distributed expertise’, which extends beyond the individual remit and the conventional lay-expert divide. For instance, in the healthcare domain, a significant development afforded by internet-based technology is the increased level of patients’ e-health literacy and, consequently, democratisation of expertise. This amounts not only to accessing health information digitally, but also the phenomenon of patients ‘doctoring’ themselves in ‘the now of its presence’, i.e., ‘expert patients’ becoming instrumental in self-diagnosis and even self-treatment.
Additionally, ‘distributed expertise’ is also constitutive of ‘expert systems’, e.g., diagnostic and interventionist technologies as well as decision aids mediated by algorithms and templates. This is what I refer to as the technologization of expertise. I suggest that there is overreliance on ‘expert systems’ by both experts and lay persons in everyday decision making. Access to and use of ‘expert systems’ in optimal ways inevitably necessitates a reconfiguration of the very conditions and consequences of professional expertise.
Event Date: 25/11/2022
Speaker: Prof. Srikant Sarangi (Hong Kong Polytechnic University)
Hosted by: Faculty of Humanities
- Keywords:
- Information technology -- Social aspects Democratization Expertise
- Resource Type:
- Video
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Others
A summary of a stroke patient case provided by the attending physician, which described the case situation during the hospital stay, including assessments and interventions, and follow-ups with various healthcare professionals for rehabilitation.
- Subjects:
- Health Sciences
- Keywords:
- Cerebrovascular disease Cerebrovascular disease -- Rehabilitation
- Resource Type:
- Others
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Video
Professor Yigong Shi will reflect on the challenges in global higher education, based on his 37 years of learning, scientific research, and teaching experience in academia. He will present Westlake University's educational reforms in university operations, governance, talent recruitment, student development, research and academic evaluation, and interdisciplinary studies, which altogether provide new opportunities for future-oriented higher education.
Even date: 6/12/2022
Speaker: Prof. Yigong Shi
Moderator: Prof. Qingyan Chen (Hong Kong Polytechnic University)
Hosted by: PolyU Academy for Interdisciplinary Research
- Keywords:
- Educational change China Education Higher
- Resource Type:
- Video
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Video
Geospatial information science is a discipline that focuses on using geospatial information technology to understand people, places, nature and processes of the earth. IoT refers to Internet of things, the combination of sensors, software and other technologies to connect and exchange data with other devices and systems over the Internet. The era of IoT brings us opportunities and challenges for geospatial information science. In the keynote, five characteristics and three scientific issues of geo-spatial information science in the era of IoT are summarised.
Even date: 6/9/2022
Speaker: Prof. Daren Li
Moderator: Prof. Christopher Chao (Hong Kong Polytechnic University)
Panel members: Prof. Qingyan Chen, Prof. Qinhao Chen (Hong Kong Polytechnic University)
Hosted by: PolyU Academy for Interdisciplinary Research
- Subjects:
- Land Surveying and Geo-Informatics
- Keywords:
- Internet of things Geospatial data Spatial data mining
- Resource Type:
- Video
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Video
This presentation will discuss the future of global universities within the evolving context of current international education systems. It will begin with an overview of the challenges posed to modern day universities by the breadth and diversity of international further education curricular between the ages of 16 and 18 and the accessibility of world leading universities to international students, in general. Having established potential global trends in further education, the implications for global universities and higher education will be discussed within the context of both teaching and research
Event Date: 17/05/2022
Speaker: Prof. David Cardwell (University of Cambridge)
Moderator: Prof. Christoper Chao (Hong Kong Polytechnic University)
Panel members: Prof. Wong Kwok-yin (Hong Kong Polytechnic University), Prof. Andrew Cohen (Hong Kong University of Science and Technology)
Hosted by: PolyU Academy for Interdisciplinary Research
- Keywords:
- International education Universities colleges -- Administration Education Higher
- Resource Type:
- Video
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Video
Using UC Berkeley as an exemplar, Prof. Koshland gave us a distinguished lecture on ‘Lighting the Way with Interdisciplinary Research since 1868’. One of the hallmarks of UC Berkeley has always been engagement of its faculty and students in research and education that expand in cross disciplines, joining on multiple approaches to address major challenges facing the world today, which is also what we are seeking to do at PAIR of PolyU. Moreover, Prof. Koshland shared with us the ways in which individuals and institutions can engage in interdisciplinary and multi-disciplinary research and education and how they can be creatively intertwined.
Event Date: 22/4/2022
Speaker: Prof. Catherine P. Koshland (University of California, Berkeley)
Moderator: Prof. Christopher Chao (Hong Kong Polytechnic University)
Panel members: Prof. Xiang-dong Li, Prof. Yuguo Li (Hong Kong Polytechnic University)
Hosted by: PolyU Academy for Interdisciplinary Research
- Keywords:
- Interdisciplinary research Interdisciplinary approach in education
- Resource Type:
- Video
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Video
An overview of the spinal cord offering an illustration of how it works in controlling body locomotion and mediate reflexes.
- Subjects:
- Health Sciences
- Keywords:
- Human physiology Human anatomy Spinal cord Spinal cord -- Anatomy
- Resource Type:
- Video
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Others
This case discusses the Overseas Chinese Town Holdings Company (OCT) Cultural Tourism Festival, which aims to integrate culture and tourism. Through marketing strategies such as resource integration across regions and industries and employee participation in the promotion, the festival launches discounted products and moves and have achieved good results. At the same time, it also needs to explore local culture and continuously promote cultural inheritance through tourism.
- Subjects:
- Hotel, Travel and Tourism and Marketing
- Keywords:
- Social media Internet marketing Amusement parks -- Marketing
- Resource Type:
- Others
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Others
A summary of a stroke patient case provided by the attending physician, which described the case situation during the hospital stay, including assessments and interventions, and follow-ups with various healthcare professionals for rehabilitation.
- Subjects:
- Health Sciences
- Keywords:
- Human physiology Human anatomy
- Resource Type:
- Others
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Video
In this video, you can see how our human body is built from the tiny atom to the human being.
- Subjects:
- Health Sciences
- Keywords:
- Human physiology Human anatomy
- Resource Type:
- Video
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Video
In this lecture, we further study business process management in particular about how organizational structure or different types of organizational structure can support business process management.
- Subjects:
- Management
- Keywords:
- Industrial management Workflow -- Management
- Resource Type:
- Video
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MOOC
Operations management deals with operational planning and control issues, and is needed in all sectors of the society. One of the challenges to operations manager is how to make use of the available resources in the best way for meeting a certain objective. Quantitative approaches are inevitably needed in tackling many of such problems. Operations Research (OR) deals with problem formulation and application of analytical methods to assist in decision-making of operational problems in planning and control. The techniques of OR are useful quantitative tools to assist operations managers, and has a wide applicability in engineering, manufacturing, construction, financial and various service sectors. Operations Research is an applied mathematics subject and is also a course in many engineering and management programmes. This course is designed for both students learning OR and learners who are practitioners in their respective professionals. The mathematical procedures for the OR techniques are introduced in details in the examples provided in the course. This helps learners to master the methodology and the techniques and apply them to achieve their goals through active learning. This course introduces two prominent OR techniques and their extended topics. The Simplex Method for Linear Programming (LP) has been considered one of the top 10 algorithms of the 20th century. LP is an optimization technique for solving problems such as finding the optimal product mix, production plan, and shipment allocation, in order to maximize the profir or minimize the cost. The Critical Path Method (CPM) is a popular technique employed by project managers in scheduling project activities. Some extended topics of CPM are also introduced to deal with certain special situations in project management. In reality, many systems operate under stochastic environment and the operational problems cannot be solved by the known analytical methods. To this end, the simulation approach is introduced in the last chapter of this course. Simulation is a powerful technique for tackling OR problems under such situations.
- Subjects:
- Statistics and Research Methods
- Keywords:
- Operations research
- Resource Type:
- MOOC
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Video
The seminar defines as Open Science practices and processes in all scientific disciplines that foster participation and collaboration, accessibility and reuse, transparency and verifiability in science. This is linked to the use and promotion of an open web and the provision of infrastructures for scholarly research, teaching and learning. Open Science also promotes sustainable impact, both transdisciplinary in the science system as well as in politics, business, culture, and public life. Open Science is rooted in the tradition of established principles of good scientific practice. The goal is to critically reflect traditional scientific culture and to transfer it into the present era of linked-up research. Based upon experiences made in the EduArc project, the talk will place the emphasis on open educational resources and challenges to fully integrate them into teaching practices at universities.
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Others
Introduce useful online tools that may help to prepare your assignment.
- Keywords:
- Bibliographical citations Report writing Hbooks manuals Research
- Resource Type:
- Others
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Video
You will learn the basic structure of neuron.
- Subjects:
- Health Sciences
- Keywords:
- Human physiology Human anatomy Nervous system Neurons
- Resource Type:
- Video
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Others
In this slide, it introduces different type of resource was created with a particular kind of purpose: to transmit facts, to interpret the findings, to put forward a viewpoint, to let fellow workers know some important idea, and so on.
- Keywords:
- Information resources Research -- Methodology
- Resource Type:
- Others
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Video
A more indepth on conventional and theoretical treatment about Business Process Management
- Subjects:
- Management
- Keywords:
- Industrial management Workflow -- Management
- Resource Type:
- Video
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Others
In this matching game, learners are required to match various scientific content types, for example, books, literature review articles, encyclopedia entry, conference proceedings, scholarly journal articles, government documents, reference books, technical reports, with their intended purpose.
- Subjects:
- Statistics and Research Methods
- Keywords:
- Research Information literacy Information resources
- Resource Type:
- Others
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Others
In this exercise, you will learn various engineering content types. For example, journal articles & conference papers, e-books, patents, standards, thesis & dissertations.
- Subjects:
- Statistics and Research Methods
- Keywords:
- Information resources Engineering -- Research Information literacy
- Resource Type:
- Others
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Others
This case study discusses the "Marriott Bonvoy" loyalty program, which offers members unique travel experiences. It has become the world's most famous hotel loyalty program, with over 133 million members, and has transitioned from a loyalty program focused on enhancing member loyalty to a travel platform.
- Subjects:
- Hotel, Travel and Tourism and Marketing
- Keywords:
- Hospitality industry -- Marketing Customer relations -- Management Hotels -- Marketing Customer loyalty
- Resource Type:
- Others
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Others
This study discussed Marriott BONVOY Wedding marketing progress and explained how to raise potential clients' enthusiasm on Chinese Valentine's Day. By providing one-stop wedding services, Marriott successfully inspires customers to influence, recommend and develop other users around them, thus better breaking through the market barriers.
- Subjects:
- Hotel, Travel and Tourism
- Keywords:
- Weddings Hospitality industry -- Marketing Special events -- Management Target marketing Hotels -- Marketing
- Resource Type:
- Others
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Video
In this video, a group of students comes to a librarian’s office to enquire about how to manage their references.They scheduled an appointment with Ms. Janet Lee, a Research Support Librarian to learn about citation management.
- Subjects:
- Statistics and Research Methods
- Keywords:
- Report writing Citation of electronic information resources Bibliographical citations -- Computer programs Technical writing
- Resource Type:
- Video
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MOOC
Learn the latest principles and theories in marketing and how to apply them to the hospitality and tourism industry.
- Subjects:
- Hotel, Travel and Tourism
- Keywords:
- Hospitality industry Tourism Marketing Bring (Marketing)
- Resource Type:
- MOOC
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MOOC
Understand essential human resources concepts and theories and analyze contemporary issues in the management of human capital.
- Subjects:
- Hotel, Travel and Tourism
- Keywords:
- Hospitality industry Corporate culture Tourism Personnel management
- Resource Type:
- MOOC
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Others
It introduces the characteristics, locations and actions of major muscles of the upper limbs, particularly the Biceps brachii and the Deltoid.
- Subjects:
- Health Sciences
- Keywords:
- Arm Human anatomy Muscles
- Resource Type:
- Others
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Video
In this video, we use the biceps brachii and the deltoid muscles as an example to illustrate the important structures of a skeletal muscle.
- Subjects:
- Health Sciences
- Keywords:
- Human physiology Human anatomy Muscles Musculoskeletal system
- Resource Type:
- Video
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MOOC
Understand the power of a luxury brand and gain the business skills needed to provide premium goods and services within the hotel and tourism industry
- Subjects:
- Hotel, Travel and Tourism
- Keywords:
- Luxury goods industry Hospitality industry Luxuries Bring (Marketing)
- Resource Type:
- MOOC
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Others
This session presents the position and orientation of the heart in the thorax.
- Subjects:
- Health Sciences
- Keywords:
- Human physiology Human anatomy Heart -- Anatomy Heart
- Resource Type:
- Others
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Video
The video illustrates the position and orientation of the heart in the thorax.
- Subjects:
- Health Sciences
- Keywords:
- Human physiology Human anatomy Heart -- Anatomy Heart
- Resource Type:
- Video
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Others
In this exercise, learners are required to match the legal publication with its contents.
- Keywords:
- Information resources Legal research
- Resource Type:
- Others
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Video
Besides case law, legislation is also important for Jacob's legal research! The law librarian suggests he refreshes his understanding about what legislation is, and how to develop skills in researching legislation.This video will help you develop your skills in researching legislation.
- Keywords:
- China -- Hong Kong Legal research -- Databases Legislation Legal research
- Resource Type:
- Video
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Video
In this video, it explains what case law is, how and why to use it for legal research.
- Keywords:
- Information resources Judge-made law Legal research
- Resource Type:
- Video
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Others
This study focuses on tourism destination development. It takes the example of TikTok KOL and explains why local governments should consider and address how to promote tourism destinations' development further.
- Subjects:
- Hotel, Travel and Tourism
- Keywords:
- China--Sichuan Sheng Tourism -- Marketing Internet marketing Social media
- Resource Type:
- Others
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Others
From the perspective of the 7 Ps as the marketing strategy, this study indicates how 'LinaBell,' the new Disney Ip, benefited from the branding effect, which leads to significant attention from loyal customers before the sale.
- Subjects:
- Hotel, Travel and Tourism
- Keywords:
- China -- Shanghai Bring (Marketing) Amusement parks -- Marketing Internet marketing Social media
- Resource Type:
- Others
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MOOC
Unravel the mysteries and meanings of life and death by exploring the journey from birth through ageing and illnesses to death.
- Subjects:
- Philosophy
- Keywords:
- Philosophy Death Life
- Resource Type:
- MOOC
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Others
This case study discusses how Li Ziqi's brand successfully built a personal brand and transformed from short video content production to e-commerce marketing by choosing the direction of ancient-style food production and Chinese traditional craftsmanship for personalized products, precisely targeted marketing, and signing with MCN agencies. Li Ziqi has become an Eastern food and lifestyle expert and a promoter of traditional culture.
- Subjects:
- Hotel, Travel and Tourism and Marketing
- Keywords:
- Bring (Marketing) Noodles -- China
- Resource Type:
- Others
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MOOC
With rapid globalization and proliferation of social media, businesses and organizations are in face of enormous communication challenges. How to communicate effectively on social media, how to manage social media data analysis as well as handling fake news are definitely at the top of the list.
By seeing challenge as opportunity, this course aims to unfold the communication challenges induced by the rise of social media in business corporations and most importantly, offer solutions to overcome these challenges. In addition, the course serves presents a vantage point to forge an interface of synergy between academics and practitioners to discuss and address global communication challenges. Participants can benefit from meaningful synergy between academics and practitioners as well as learning materials and meaningful multilateral discussions surrounding authentic communication cases and industrial practices engaging both instructors and participants. In sum, this course provides insights for business leaders, senior managerial members, and communication professionals by discussing the major communication challenges encountered by businesses around the world which in turn, helps the participants to advance their career in the ever-changing communication environment.
- Subjects:
- Communication
- Keywords:
- Social media Information technology -- Management
- Resource Type:
- MOOC
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MOOC
This self-paced online course will help students to improve their language skills, find out how they can be an independent learner and become a life-long learner, increase their knowledge of effective study skills, and balance their study and life by highlighting efficient uses of time and healthy study practices. Created by the English Language Centre of The Hong Kong Polytechnic University.
- Keywords:
- Study skills English language -- Study teaching
- Resource Type:
- MOOC
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MOOC
This course aims to introduce you to the concept of Service-Learning, and to equip you with the basic knowledge, attitudes and skills required for planning and implementing a Service-Learning project effectively. It consists of an Introduction, 4 instructional units, and an End-of-Course Test. You will be awarded a Certificate of Completion upon successfully completing all the requirements of the course.
- Course related:
- APSS2S09 Service Leadership through Serving Children and Families with Special Needs
- Keywords:
- Service learning
- Resource Type:
- MOOC
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Others
This case study analyzes how Hotel Maurice France succeeded in the competitive luxury hotel market by partnering with the high-end skincare brand Valmont to provide personalized services. At the same time, the case also highlights the trend of expansion strategies and strong alliances in the luxury hotel industry.
- Subjects:
- Hotel, Travel and Tourism and Marketing
- Keywords:
- Hospitality industry -- Marketing Hotels -- Marketing Strategic alliances (Business)
- Resource Type:
- Others
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Others
In this presentation, it explain three areas: (1) Law journals submission and ranking, (2) Information for submitting articles to law review & journal, and (3) Submission of law student articles for publication.
- Keywords:
- Law -- Periodicals Scholarly publishing Authorship Scholarly periodicals -- Ratings rankings
- Resource Type:
- Others
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Others
One may try to publish in the best law review or journal as much as possible for various reasons, such as getting a teaching job. Journals are normally ranked by rates of citation, prominence of authors,reputation, etc. In this presentation, there are various law review and journal lists, some provide ranking information. The ranking is based on the mechanism adopted by the respective system.
- Keywords:
- Law -- Periodicals Scholarly periodicals -- Ratings rankings
- Resource Type:
- Others
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MOOC
Learn about the integrative power of knowledge management, Big Data and Cloud Computing, and how they impact the new business era.
- Subjects:
- Business Information Technology, Management, Computing, and Industrial and Systems Engineering
- Keywords:
- Big data Knowledge management
- Resource Type:
- MOOC
-
Video
This study takes Klook, a Hong Kong-based technological online travel company, as a successful example of how to use a Mobile-first strategy and Celebrity Charm Strategy to provide customers with a unique and comprehensive travel products and services platform.
- Subjects:
- Marketing and Hotel, Travel and Tourism
- Keywords:
- Travel -- Computer network resources Tourism -- Marketing Marketing
- Resource Type:
- Video
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Others
By offering family guest activities that blend the Rabbit King theme with the "Shangri-La Happy Growth Program," this study works on how Jinan Shangri-La hotel integrates local cultural emblems to give families a unique hotel stay.
- Subjects:
- Hotel, Travel and Tourism
- Keywords:
- Hospitality industry -- Marketing Hotels -- Marketing Family vacations Target marketing
- Resource Type:
- Others
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Others
This case study discusses how JW Marriott Hotel Shenzhen attracted more high-quality customers to purchase gym memberships through integrated marketing communication, resulting in a total revenue of approximately 120,000 RMB, accounting for 32% of the total income of the fitness center that year.
- Subjects:
- Hotel, Travel and Tourism and Marketing
- Keywords:
- Hospitality industry -- Marketing Hotels -- Marketing Physical fitness centers
- Resource Type:
- Others
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Video
In this video, a team of students are working on their engineering innovation project. They used various search tools to find various information. However, they have difficulties to decide what to look at first, and how to choose in a strategic and clever way.
- Subjects:
- Statistics and Research Methods
- Keywords:
- Engineering -- Research
- Resource Type:
- Video