February 21, 2015
December 20, 2014
You should be able to understand and implement an existing research paper (e.g. SIGGRAPH) or software system (e.g. a renderer/simulator) as well as reproduce the corresponding results.
Otherwise, you are not ready for a research or even a development position.
As a reference point, my current HKU PhD student, Jun Xing, once managed to reproduce 3 SIGGRAPH papers in a span of about 5 days.
December 11, 2014
Coauthors revealed a secret in a recent paper that gave us all street credits.
(It is in plain sight for anyone to see, so I won’t tell.)
November 9, 2014
If I need to produce a video or give a talk for a research project, here is my current workflow.
Write down the story/script in plain text and rough drawings. Do not use any specific media at this early stage as it can prematurely limit our creativity.
Commit the script into a storyboard via slides (e.g. PowerPoint).
I then gradually flesh out the storyboard into a video and talk using the same set of slide files. This might sound unusual, so let me explain.
Start with video. When I was in grad school I learned time-line based tools (e.g. Adobe Premiere) to author and edit videos. But recently I found it more natural to use slides instead of time-lines for research videos. The main reason is that a research video usually contains short video segments glued together by narration, which involves more storyboarding than time-line manipulation.
I first produce the individual video segments using specific tools (e.g. dumping individual frames from my renderer and convert them into a video via MovieMaker), and embed them into PowerPoint slides. PowerPoint provides a rich set of tools for annotation, animation, and transition, which I find handy (and harder to do via Adobe Premiere). I automate all object animations and slide transitions, and dump the entire project into a video file.
I submit the video along with the paper, and go screw around.
PowerPoint allows flexible manual control, but it can be tedious due to lack of automation/scripting tools. Thus, it is important to properly decompose the above process into (1) automatic creation of (video) components and (2) manual insertion/combination of these components into the slides. It is a trade-off among quality, control, and manual labor.
When the time comes to prepare the talk, I can simply start with my slide file, which already contains the script, the video segments, and associated effects. I just need to turn off those automatic animations and transitions that I wish to manual control, and add additional information for a talk, usually verbal stuff such as previous works, algorithm details, and future directions.
I find this much more efficient than starting new slides from scratch.
I also find that for those projects that I were too lazy/busy to make videos, the talk slides I ended up doing are often not too far from being videos.
It is almost always a good idea to have a video to present the gist of our project in 5 minutes, more appealing and efficient than absorbing the same amount of information from reading the paper.
July 29, 2014
TA is a great training for presentation, communication, management, and personal skills. You have to be able to describe course materials in a way that the students can understand, and you have to balance their learning and happiness. Naturally, students want to minimize workloads while maximizing grades. Dealing with a large class (hundreds of undergrad students) is not unlike managing a mob.
It is great if one can focus exclusively on research. That is what I prefer then as a grad student and now as a prof. But without sufficient communication and personal skills, one cannot succeed even with great research skills.
To start with, a great idea is of no value if it cannot be understood and appreciated by people.
Thus, I do not consider TA a waste of time. Quite on the contrary, it is an indispensable part of research training.
July 25, 2014
It is striking how much the advice on fiction writing applies to technical writing and conducting research in general, despite some important differences, e.g. scientific writings should be precise instead of leaving rooms for imagination.
May 20, 2014
Around year 2007 I collaborated with some guys on a project. After a while due to lack of progress, the project was shelved.
Earlier this year, the same group of guys contacted me about joining the project again. They found a way to rejuvenate the project just days before. It was less than 48 hours until the submission deadline, so I did not think I will be able to make enough contributions to be a co-author.
Today I am thrilled to find out that the paper has been accepted (by a top venue). This is the longest wait period among all projects I have been involved with.
Patience pays off. Good ideas often need time to mature, and might look like craps in the beginning. Store them in your mental jewel box, and they might shine in the future with the right circumstances. Avoid the temptation to publish the idea too early just because it might get scooped. An ill prepared idea, like an ill dressed person, will not get the deserved recognition and impact. And ideas easily discovered probably are not all that novel anyway.
Never give up until it is absolutely dead. Whatever considered impossible by ordinary people may be overcome by those who want to be extraordinary.
March 7, 2014
I found Bobby Fischer against the World a fascinating documentary about a particular kind of talent (chess) of a unique individual (Bobby Fischer, widely considered as the greatest chess player of all time who later self-destructed into an outcast) at a particular era (cold war, with chess being one of the competitions to showcase US/Soviet supremacy).
One interesting point pursued in the movie is about the specific type of brain that enables superior chess play may also cause certain psychological issues.
One can make a more general point in that unusual brains, as double-edged swords, can produce special talents as well as abnormal behaviors, as have been seen in geniuses across different disciplines such as musicians, artists, scientists, and mathematicians.
December 23, 2013
Not having to observe Western holidays is your competitive advantage. Don’t squander it.
November 8, 2013
I think the basic points are the same as with any rebuttal. The main difference between CHI/UIST and most other venues (e.g. SIGGRAPH) is the addition of meta reviews which might provide helpful summaries for rebuttal.