Confessions of a researchaholic

December 14, 2021

How to draw a f****** owl

Filed under: Real — liyiwei @ 10:39 am
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This LinkedIn post reminded me of the talk I gave in SIGGRAPH Asia 2014 about how to make a SIGGRAPH paper.

That owl image came from here, resonating with my earlier phase of learning how to draw around that time, in addition for being a funny point of analogy for writing research papers.

Retrospect can sometimes feel like a time travel to reconnect with my past self.
My passion for SIGGRAPH peaked around 2011 to 2014, and I have been looking beyond that for interesting or important problems to work on.



November 15, 2021

Follow your passion only if you know what it is

Filed under: Real — liyiwei @ 11:54 am
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I have been using ray tracing as a default introductory exercise for my open mentor program. Probably as a consequence, several recent students decided to focus on rendering when applying for graduate research programs.

When I applied for grad schools 20+ years ago, I only knew that I wanted to program stuff.
I decided to focus on computer graphics after the first year during which I took courses in different topics and attended different research group meetings (not least for the free food).
I figured out my research topic after the third year, after trying out at least 20 different projects which not only greatly helped me figure out my thesis topic but also have a glimpse of what is going on in other potentially related research fields (which in turn helped me expand and transition my research topics many years later).

I guess this relates to the more general discussion about the danger of following your passion (too early); if you only do what you like, you might not try what you might like even more.

November 13, 2021

SIGGRAPH/ToG conference/journal papers

Filed under: Real — liyiwei @ 10:16 am
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When I was a PhD student around the turn of the millennium, SIGGRAPH, despite being the top venue in visual computing, is considered as a conference and thus the published technical papers received a lower count/weight than journal papers in traditional academic rating.
To remedy this problem, starting from 2002 SIGGRAPH technical papers were published as special issues of ToG (ACM Transactions on Graphics), which is a journal.

Now, about 20 years later, people were concerned about the author workload and review speed for ToG, compared to some machine learning and computer vision conferences which tend to have lower requirement for evaluation and faster review/publication cycles.
To remedy this problem, starting from 2022 SIGGRAPH will start accepting a conference-track of papers.

This is one example of the general phenomena where people repeat cycles of identifying problems, devising solutions, causing other (sometimes previous) problems, ad infinitum.

Update: Aaron Hertzmann (the main architect for the conference track) has a recent post about expectation creep that is worth taking a look.

November 11, 2021

Award nomination

Filed under: Real — liyiwei @ 5:13 pm
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A few years back, someone asked me to nominate him/her for the SIGGRAPH significant new researcher award. At that time I found the conduct questionable, so I consulted with my PhD adviser, who told me that I should not incur any potential benefits or conflict-of-interests from the nomination. For example, an advisee receiving an award could potentially enhance the reputation of the adviser. A corollary is that the nomination should be anonymous, for which the nominee shouldn’t even be aware of being nominated (not to mention soliciting) as otherwise it is a form of doing favor.
In the end, I still did the nomination due to institutional pressure, but in retrospect I found the entire experience lame, and that person did not win the award anyway.

Today another individual asked me to nominate him/her for a research award, with whom I shared the above story.
I believe someone who deserves an award would not care about it.
I am not following baseball, but the most memorable event in MLB is when Ichiro Suzuki turned down a prestigious award, multiple times.

Research is a fun job if you can handle it

Filed under: Real — liyiwei @ 4:29 pm
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After a company training today a fellow employee from another division pinged me: Are you in the research group? That sounds fun!

Me: Research is a fun job as long as you are comfortable failing 90% of the time. 🙂

November 3, 2021

Unrealized submission

Filed under: Real — liyiwei @ 11:29 am
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Yesterday I received some automatic notification about an accepted demo to SIGGRAPH Asia Real-Time Live without realizing that I have a submission there (a co-author of a previous UIST paper made the submission without telling others).

https://twitter.com/liyiwei/status/1455674543930953728

I mentioned this in a group meeting today, and a colleague told me that he has a previous intern who submitted their project without including his name and he found out by a review request for that submission.
🙂
So my case is quite benign in comparison.

November 1, 2021

Patents are more like swords than shields

Filed under: Real — liyiwei @ 10:32 am
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Patents are commonly thought as some kind of protection that can shield the inventors from lawsuits, but this is not the top reason as others can file patents for similar inventions.
Instead, patents are best used as potential weapons for counter-suits; the best defense is a good offense.

September 7, 2021

Good results

Filed under: Real — liyiwei @ 4:56 pm
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I remember (20+ years ago while I was still in school) during a faculty seminar, Mark Horowitz couldn’t attend, and Bill Dally presented his research by skipping all results slides by simply saying “good results!” and called it a day.

As someone coming from the SIGGRAPH-side of research, I always wish that all CHI user study sections can contain just one sentence: happy users and good results! (instead of pages of descriptions and statistics which, honestly, I never read).

https://twitter.com/liyiwei/status/1434981016800690180

July 24, 2021

AR face/body filters

Filed under: Imaginary,Real — liyiwei @ 6:02 pm
Tags: , ,

When one day AR glasses become as ubiquitous as smart phones under shared platforms like Android/iOS, AR face/cloth filters could supplement or even replace our physical makeup and attire, as already happening with virtual cameras during virtual meetings that I have been experimenting with recently.

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