Preparing for your Virtual Presentation


There are two options for authors of accepted papers and abstracts (with online registration) to present their 20 minute presentations in the conference virtually. 

Option 1: Submit a link of the pre-recorded presentation video file to EasyChair. This pre-recorded video ensures the presentation will then be played at the allotted time during the panel session. Authors should be present online to interact with participants in the Q&A. 

Option 2: Make a live presentation on zoom in the designated paper panel session.

The video of the presentation should mention the title of the paper, the author(s) and their affiliation so that it can be readily identified. The presentation must be recorded by the author or co-authors. It will be available for viewing during the conference period.


Duration of your recording: 20 minutes (max.)  
File size: 1GB (max.)  
Resolution: Full HD 1920 x 1080  
Video file format: MP4  

Here are some suggestions and links to instructions on recording a video on common platforms. You can show your face via the webcam (if you prefer) and display your presentation materials as you talk. You can use any meeting software as long as the recording is of appropriate quality and your final video file is in MP4 format. 

You could also record your presentation using Microsoft PowerPoint and convert it into MP4 format

Preparing and Uploading the URL of your video to EasyChair

  1. Go to EasyChair (
  2. Select “Submission” tab, under “Other Information and Files” section, insert the URL of your video file.


Deadline for Uploading Video

17 May 2021 (noon, HK time)


Tips for recording video

  1. Record your video in a small quiet room if possible. Hard-wired internet connection is recommended. If this is unavailable, make sure you have a strong Wi-Fi connection.
  2. Avoid using the default built-in microphone on computer for recording. Use a good headset with microphone but place the mic slightly away from the mouth where the air blast is less powerful to avoid pops. 
  3. Do a trial recording and review the sound and image quality before recording the entire presentation. 

If you have difficulties with uploading your presentation, please email us at

Please note that if the video links are not received by the deadline, we assume that the presenters will be making their presentations on zoom in real time.