- Biography
- Teaching Philosophy
- Teaching
- Publications
- Presentations
- Awards
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Pauli Lai
Teaching Fellow
Biography
Dr Pauli P.Y. Lai received the BEng(Hons) degree in Systems Engineering and Engineering Management from The Chinese University of Hong Kong and both the MSc and PhD degrees in Computer Science from The University of Hong Kong. She joined the Department of Electronic and Information Engineering at The Hong Kong Polytechnic University in 2007. Prior to joining The Hong Kong Polytechnic University, she had served as Software Engineer in a listed IT company in Hong Kong and Lecturer in a non-profit-making self-financed institution in Hong Kong. In 2011, she was awarded both the Champion of the Postgraduate Section and the Overall Champion at the Young Members Exhibition and Conference (YMEC) 2011, organized by the Institution of Engineering and Technology Hong Kong (IET(HK)). In the same year, she was also awarded the Best Presentation Award (Web Intelligence and Social Computing) at the 6th Beijing-Hong Kong International Doctoral Forum 2011, organized by the Chinese University of Hong Kong and the Graduate School at Shenzhen, Tsinghua University. In recent years, she received the Faculty Merit Award for Outstanding Achievement in Teaching (Team) 2018/2019 as a Team Leader and the Faculty Merit Award for Outstanding Achievement in Teaching (Individual) 2022 from the Faculty of Engineering of The Hong Kong Polytechnic University. She has been teaching at the university for more than ten years and is keen on exploring new pedagogies, especially learning technologies. Her research interests include interactive pedagogies, e-learning technologies, application of AI in education, and service-learning.
Teaching Philosophy by Pauli Lai
- Introduction
- Category #1
- Category #2
- Category #3
- Conclusion
I believe that education can be dynamic and diversified. As an educator in the Department of Electronic and Information Engineering (EIE), it is essential to guide and motivate students to fully understand the fundamental concepts in EIE, help students develop their critical think skills, and nurture their learn-to-learn ability to become lifelong learners. In addition to transmitting technical knowledge to students through technical subjects, it is also important to prepare students to become civic-minded professionals with leadership skills, cross-cultural capability, global perspective and a heart to serve through service-learning. Finally, I believe that equipping Engineering students with English communication skills is not only the responsibility of the English teachers but also the teachers in the discipline. In this connection, my teaching philosophy is summarized as the following three categories:
- Incorporating the use of technology in class and out of class to enhance students’ learning experience and motivation for learning the technical knowledge
- Leading students to serve the underprivileged community via service-learning
- Attempt to improve the English communication skills of Engineering students
“Incorporating the use of technology in class and out of class to enhance students’ learning experience and motivation for learning the technical knowledge”
I adopted a blended learning approach to enhance students’ learning experience and motivation for learning in class. The rationale behind my Learning Innovation is to provide a fun class through a number of interactive activities. Instead of giving a lengthy lecture, I would break the lecture into mini-lectures with interactive activities interleaving to engage students actively and avoid getting them bored due to a long passive-learning lecture.
Rationales behind the chosen activities:
- Pre-Quiz using uReply: To understand students’ expectations and how much they know before attending the class. uReply is useful in getting students’ responses instantly and showing results immediately afterwards.
- Youtube video: Some concepts can be explained more easily by demonstration through animation or video.
- Breakout group in Blackboard Collaborate or small group discussion in class: To foster the culture of student-student interactions and let them practise social skills and communication skills.
- Kahoot! Game or Polling: To give a pause and check students’ understanding from time to time.
- Chatbox: To allow students to ask questions or answer questions raised by teachers.
- Peer instruction via Post-Quiz using uReply: The Post-Quiz is used to assess to what extent the students have achieved the Intended Learning Outcomes. The Peer instruction approach is conducted by giving students opportunities to think individually first and then giving them chances to discuss what they believe. Students may learn from their peers better sometimes.
Disengagement is an issue in the educational arena where students have difficulty paying effort to study out of class. Most students simply have no interest nor motivation to study at home. To sustain their learning span after class, I adopted some interactive out‐of-class activities to engage students in learning. These activities include an online challenge game platform, flipped classroom and video assignment. Hence, teaching and learning have been enriched by new elements of fun by the online game, streamlined by the flipped classroom’s flexibility, and rejuvenated by the brainstorming of the video assignment activities.
“Leading students to serve the underprivileged community via service-learning”
Apart from learning technical knowledge, it is also important to prepare students to become civic-minded professionals with leadership skills, cross-cultural capability, global perspective and a heart to serve. As an educator, I make an impact on student learning academically. And it is equally vital to make an impact on student personal development. Through service-learning, students’ leadership skills, confidence, and sense of social responsibility can be developed. They can also develop global citizenship in their personal attributes. Extracted from the students’ reflection report in the previous service-learning trip, they have gained a sense of fulfilment and become more patient after the service. The service-learning trip made them grow mentally and inspired them to help more people. Also, they have improved their communication skills as they understood the importance of facial expression that affects the audience attitude. The cultural visits also enriched their life experience and triggered their reflection on their lives.
“Attempt to improve the English communication skills of Engineering students”
Engineering students often give people the impression of good rationality but weak presentation. Though I am not in the language department, I make an effort to improve the Engineering students’ English presentation by promoting Toastmasters Club and designing a video assignment in a technical subject. I am also proposing a teaching and learning project to develop an AI assistant to guide and evaluate students’ presentation skills. It is crucial if the English presentation skills of the Engineering students could be improved. In the long term, this increases their confidence in public speaking and benefits their communication with clients or colleagues in the workplace after graduation.
Having led service-learning trips to Cambodia and Vietnam, enhanced Engineering students’ spoken English through Toastmasters Club, and promoted peer interactions between students by implementing challenge games, I believe education can be dynamic and diversified. As an educator, I find teaching and learning a reciprocal process that takes two to tango. Interactions amongst teachers and students are thus of significance. I will spend my whole teaching life exploring and fulfiling the mission of education!
Pauli Lai and Chi-Ho Chan, “Combating Challenges of Overseas Service-Learning in the Pandemic,” Proceedings, the 4th International Conference on Service-Learning (ICSL2022), Dec 2022, Hong Kong.
Pauli P.Y. Lai, “Engaging Students Through Technology-Enhanced Interactive Activities Outside the Classroom,” in Applied Degree Education and the Future of Learning, Christina Hong and Will W.K. Ma, Ed. Singapore: Springer Singapore, 2022, pp. 395-420, doi: https://doi.org/10.1007/978-981-16-9812-5.
ABSTRACT:
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The future of I.T. relies on the next generation and the knowledge of the next generation is built up today. However, the current I.T. education in Cambodia is often based on not properly trained teachers. There are also very few well-trained I.T. people working in the education field or I.T. industry in Cambodia. This will form an adverse cycle and the situation will never improve if no revolution is brought to I.T. education in this country. In this regard, it is proposed to offer a servicelearning subject that helps reduce the gap of I.T. education between Cambodia and the developed countries. The objectives are to train the students, teachers and technical staff in Cambodia with proper I.T. knowledge. It is aimed to produce more well-trained I.T. people in Cambodian workforce so that Cambodian can help themselves for sustainable I.T. education in future.
ABSTRACT
The use of mobile devices to access the World Wide Web is becoming more prevalent. When browsing webpages on small-screen devices, it is difficult to locate information of interest since the limited screen space can be fully packed with information. Also, browsing Web tables on small-screen devices is a non-trivial problem. To fit a large table in a small-screen device, the association between data values and their corresponding headers may be disrupted. It is difficult to locate information accurately if the data meanings are lost. For visually impaired users, the problem is even more challenging. Sequential presentation of the webpage by a screen reader is too time-consuming if the information of interest is placed at or near the end of the webpage. Therefore, there is a need to re-organize useful information in webpages in order to enhance information finding on small-screen devices. In this thesis, various adaptations are proposed by exploring and exploiting relationships between Web elements in the webpage. In the current literature, some proposed heuristics are based on specific HTML elements, which cannot be generalized. Some other algorithms assume a correct DOM structure, which would fail if the webpage is not properly marked up. Many algorithms extract blocks without assigning them the proper titles. A gap needs to be filled, such that extracted blocks will be given a proper title through exploring the relationships between semantic elements. In this thesis, I propose to integrate relationship analysis and DOM-tree structure traversal for identifying logical sections together with their section headings. By extracting all the section headings, a table of content can be constructed to provide direct access to interested sections in an efficient way. Relationship analysis is a critical complement to the DOM structure for identifying the semantic content hierarchy when a webpage is not properly marked up. By exploring relationships between table cells, the structure of an unstructured Web table can be extracted. The semantic meanings of the data values are retained by preserving the data values and their corresponding headers. A novel way of accessing a webpage, which converts the page itself and its Web table into menu-based presentation, is then proposed. Converting the webpage into an Interactive Voice Response System introduces yet another mode of access which can enhance the accessibility of the webpage. In addition to improving mobile accessibility, the proposed adaptations can also benefit the visually impaired users. Experiments show that the average effectiveness and efficiency of adaptation with direct access are improved by 18% and 15% respectively, which are clearly better than the case without adaptation. Also, by adapting the Web table into a series of menu pages, the effectiveness and efficiency are improved by 61% and 37% respectively. For the evaluations with visually impaired users, the adaptation with direct access can greatly improve efficiency by 85%. Some complicated Web tables in fact could not be properly interpreted by visually impaired users; the Web table adaptation makes them accessible. Information finding indeed becomes more efficient and effective when using the adapted versions.
ABSTRACT
The use of handheld devices to access the World Wide Web has been increased significantly in recent years. It is time consuming to seek information when desktop-oriented webpages that contain tons of information are squeezed to be displayed on a handheld device. Therefore, presenting useful information in an efficient and effective way on pocket-sized mobile devices is very significant especially in the coming outbreak of mobile Internet era. We propose a content model to represent the relationships between semantic elements on webpages. From the model we generate different adaptations for people with different needs. Our objective is to discover author’s intention of webpages by analyzing the relationships of semantic elements on webpages and to provide various adaptations for efficient and effective Web browsing and information seeking on pocket-sized mobile devices. Experiments show that the adapted versions improve efficiency and effectiveness for information seeking on pocket-sized mobile devices in general.
ABSTRACT
Web table understanding is challenging for people with visual disability. They depend on screen readers to convey the table information. Screen readers present content linearly to users, but if the table is large, the user may have long forgotten the heading before the last row is read. Even in table navigation mode, it can still be confusing if the table is not marked up properly. Though there are guidelines for web developers to create accessible web tables, some authors may still not properly mark up the web tables. There are also lots of legacy web tables that are not designed with accessibility in mind. These unstructured web tables arouse a need for web accessibility improvements. Existing solutions mainly focus on interpreting tables by screen readers and providing guidelines to create accessible web table, so there is a research gap on how to adapt unstructured table to improve web accessibility. In this regard, we propose a method to extract the structure from these tables and re-organize them into multiple levels of abstractions so that the visually impaired users can access the tables level by level by selecting the corresponding option number. This has enhanced the table content understanding for people without visual perception and has greatly improved web accessibility of unstructured web table for both PC users and mobile users with visual disabilities.
ABSTRACT
Web table understanding is usually difficult for blind people. They depend on screen readers to convey the table information. However, if the table is large, the user may have long forgotten the heading before the last row is read. On the other hand, it is also difficult for users to view a large web table on a small-screen device. It usually requires extensive scrolling to view a large table with small-screen display. When the last row or last column is reached, the associated headers are probably out of screen and thus the meaning of data values is lost. These unstructured web tables arises a need for mobile and web accessibility improvements. In this regard, we propose a method to extract the structure from these tables and perform adaptation so that the mobile and blind users can perceive and retrieve information from the web table more easily and conveniently.
ABSTRACT
The International Cross-Disciplinary Conference on Web Accessibility (W4A) was started in 2004 with the aim of accelerating research activities towards an accessible World WideWeb. Through previous conferences, a growing number of participants from academia, industry, government and non-profit organisations around the world have gathered to exchange their latest research results, widen their perspectives through discussions with their peers, and establish future research agendas across disciplines and sectors. Each year, we choose a theme to encourage a focus on the emerging challenges in a particular area of accessibility, and for W4A 2011 we posed the question: “Crowdsourcing the Cloud: An Inclusive Web by All and For All?” Cloud-computing and the applications deployed on the cloud facilitate collective intelligence and crowdsourcing phenomena, where millions of users can contribute to a common goal. Following these approaches, a number of successful projects that focus on web accessibility have been released in recent years. These developments range from platforms to collectively removing accessibility barriers to making assistive technologies widespread and available for all. These preliminary approaches such as online screen-readers and accessibility repairing applications have yielded promising results towards an inclusive web by removing both economical and accessibility barriers. In order to develop the cloud to its full potential as far as accessibility is concerned, there are still several research questions that should address the weak points and challenges in a timely manner in order to create an inclusive Web: will crowdsourcing the cloud lead us to an inclusive Web by all and for all? Will crowdsourcing the cloud remove accessibility barriers for all? Will crowdsourcing the cloud make the Web accessible or inaccessible? This year, we a had a record of submissions, 6 technical papers and 16 communication papers were selected from 34 submissions through peer review process. As usual, we received submissions from researchers worldwide, spanning Asia, Europe, North America, Oceania and South America. The coverage of submissions was comprehensive across Web accessibility research fields: evaluation and repair, user modeling and adaptive interfaces, access to rich and dynamic content and accessibility engineering, amongst others. Acceptance rate of technical papers was 33%. In addition, we received 9 submissions to The Web Accessibility Challenge event. The acceptance rate as well as the thorough review process led to a high quality number of papers that ensures the excellence of the W4A conference. As of March 2011, each W4A paper has been downloaded 452 times on average and has 2.87 citations according to the ACM Digital Library. These data confirm that W4A does not only provide excellent visibility to papers but also enables strong scientific impact.
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- Award: Champion of the Postgraduate Section
- Award: Overall Champion
ABSTRACT
For the blind people to browse the Web, they could only perceive webpage by alternative sensory channels such as auditory channel or through tactile devices. The most common way for them to access the Internet is to use a Web browser and text-to-speech software. But the problem of using screen reader is that it usually starts reading from the top and traverse the whole webpage sequentially. Even if some screen readers allow tabbing through links or headings, it is still quite time consuming for users to reach their interested section of content. In this regard, it is proposed to adapt a webpage into different logical sections. A number and a descriptive heading would then be assigned to each logical section so that the user is able to explore each section by just pressing the corresponding number. The whole idea is like converting the webpage into an IVRS (Interactive Voice Response Systems) so that the blind people can access the webpage using mobile phone by listening to the list of menu headings and getting into details of the interested section by entering the corresponding number on the keypad.
Pauli P.Y. Lai, Ivan Lau and Chi-Ho Chan, “Video Presentation in English for Technical Subject”, the 3rd International Conference on English Across the Curriculum (EAC 2021), 20-22 May 2021, Hong Kong.
Pauli P.Y. Lai and Chi-Ho Chan, “Enhancing English presentation of Engineering students by Toastmasters Club”, HKCPD Virtual International Conference: Innovative teaching and research in English Language Education, 8-10 January 2021, Hong Kong.
Pauli P.Y. Lai, “Cooking Up a Fun Blended Learning Class with a Key Ingredient—Blackboard Collaborate,” Lecture at BbWorld 2018, July 2018, Orlando, USA.
Pauli P.Y. Lai, “Learning without Barriers: Creating an inclusive learning environment using Blackboard Collaborate,” Lightning Talk session at BbWorld 2018, July 2018, Orlando, USA
We are honored and thrilled to announce that our project, Empowering Engineering Students with Essential Skills through EdTech Tools, has been shortlisted for the E-Learning Award by QS Reimagine Education 2023!
To learn more about the impact of this global competition and to join the conference, visit
#QSReimagine #EdTech #Innovation
@QS Quacquarelli Symonds
Faculty Merit Award for Outstanding Achievement in Teaching (Individual) 2022
Shortlisted as one of the five finalists for eLearning Forum Asia 2020 Awards – Community Outreach Award.
Received the Best Presentation Award (Web Intelligence and Social Computing) at the 6th Beijing-Hong Kong International Doctoral Forum 2011 organized by the Chinese University of Hong Kong and the Graduate School at Shenzhen, Tsinghua University for the paper “Application of Content Adaptation in Web Accessibility for the Blind” in 2011.
- Amazon Cloud