Confessions of a researchaholic

September 8, 2017

Expresii appy hour

Filed under: Real — liyiwei @ 5:03 pm

My friend Nelson Chu could not attend SIGGRAPH 2017 to demo his Expresii, so I stood in for him.

Thanks to the wonderful product from Nelson, this is a fantastic presentation experience. I can interact with and talk to many different people, focusing more on practical utility than technical details. I had no time to get bored for the entire 2-hour duration. People kept on visiting even after the session closing. And I had a great time practicing playing the app myself.

Publishing a SIGGRAPH paper is about proving how smart we are, while demoing a SIGGRAPH app is about demonstrating how useful it is for you.

August 22, 2017

ACM author rights

Filed under: Real — liyiwei @ 10:09 am

Among the 3 options for your glorious SIGGRAPH (or other ACM) paper, I usually choose the new licensing agreement (option 2) because it does not require shelling out a few grands for retaining all rights (option 3) and allows the authors to retain the theoretical copyright unlike the traditional copyright transfer (option 1).

By theoretical, I meant that options 1 and 2 probably make little to no practical differences for authors, since the license transfer is perpetual and exclusive for ACM, and authors can share their preprints anyway.

August 11, 2017

Servers down

Filed under: Real — liyiwei @ 10:45 am

Hmm do people start to submit so early for the next SIGGRAPH?

Server is unavailable

Please try back later…

The SIGGRAPH server is experiencing very heavy traffic right now, and cannot service your request. Please contact if you need immediate assistance. Otherwise, please try your request again shortly. Thank you.

[Later] And this:

July 28, 2017

SIGGRAPH 2017 parties

Filed under: Real — liyiwei @ 5:15 pm

9 to 11 pm, Sunday July 30 2017
L.A. Live Courtyard & Residence Inn, LA 2 & 3

6:30 – 9:30 pm, Monday July 31 2017
(Invitation only)

6 to 8 pm, Monday July 31 2017

Disney (?)
Dreamworks (?) (?)
GVU (?)

5:30 to 7:30 pm, Wed August 2 2017
4th floor (outside) Bonaventure Brewing Co. 404 S. Figueroa St

Canadian night
9 pm to midnight, Wed Aug 2 2017
Shoo Shoo, Baby, 717 West 7th Street, Los Angeles, CA 90017

August 18, 2016

Milestone of seniority

Filed under: Real — liyiwei @ 1:09 pm
Tags: ,

March 11, 2016

Conversation with collaborator X prior to a SIGGRAPH rebuttal

Filed under: Real — liyiwei @ 1:11 pm
Tags: , ,

X: I’m really eager to see what the SIGGRAPH reviewers have in store for us this time… The suspense is killing me. =o

Li-Yi: I just assume they will screw me, and I am never disappointed. 🙂

X: Yes, that’s what I do as well, but I’m always amazed about how they always find ways to complain about the stuff you don’t expect. 😮

Li-Yi: If I can expect what others will think, I will be like some sort of x-men or superman. 🙂

October 26, 2015

Autocomplete hand-drawn animations

Filed under: Real — liyiwei @ 9:00 pm
Tags: ,

[This post is for answering press inquiries about our SIGGRAPH Asia 2015 paper titled “autocomplete hand-drawn animations”.]

On August 2014, Koji Yatani (at the University of Tokyo) asked me (on Facebook!) to recommend students for a MSR Asia internship under Takaaki Shiratori with topics in animation and sketch UI. I recommended my HKU PhD student Jun Xing, who just got a paper in SIGGRAPH Asia 2014 titled “autocomplete painting repetitions”.
(Both Koji and I were with MSR. That is how we got to know each other even though we have no overlap.)

Our initial goal was to help users create animated emoji in instant messaging. I wanted to make sure the project is significant enough (e.g. for SIGGRAPH) while leveraging our collective expertise as much as possible. Thus, I proposed to extend the aforementioned SIGGRAPH Asia 2014 paper, which can autocomplete only single-frame drawings, for multi-frame animations. The main goal for both projects is to help ordinary users draw as easily and effectively as possible.
(My dad is an artist, but I have yet to learn how to draw. So as any decent computer scientist would do, I ask algorithms for help.)

Jun designed most of the user interface and algorithms, and implemented the entire system. He is definitely one of the best students I have worked with.

We plan to ship prototypes of the system to gather user opinions for further research and improvements, starting with mobile apps followed by desktop versions.

Contrary to what some press reported, this is NOT a Microsoft technology or product (at least not at this moment of writing). None of the authors were with Microsoft during the key stages of the project development. In particular, the core ideas were conceived before the start of the internship, and Jun had to come back to HKU to finish the project after Takaaki left Microsoft about 1 month before the paper deadline.

July 20, 2015


Filed under: Real — liyiwei @ 11:47 am

I have heard enough saying that SIGGRAPH Asia simply accepts papers rejected by SIGGRAPH, and thus is of lower quality.

This is not my business and in any case I do not care an iota what others think. But any scientifically questionable statement deserves to be rebuked.

Both SIGGRAPH and SIGGRAPH Asia have similar acceptance rates, and are hold at the same review standard in my personal experiences (as authors, reviewers, and committee members).
If you have ever reviewed a SIGGRAPH Asia submission you probably have received instructions from the paper chairs about holding the same quality bar as SIGGRAPH.

In my personal record (up until SIGGRAPH 2015), I have 4 papers rejected by SIGGRAPH Asia and accepted by the next SIGGRAPH, and 4 the other way around. So it is about the same.

The real difference lies not in the quality bar but the (geographic) venue.
As a presenter I do prefer SIGGRAPH due to the usually larger audience.
But I also know others who prefer SIGGRAPH Asia due to visa and travel issues.

December 11, 2014

Street credit

Filed under: Real — liyiwei @ 6:55 pm
Tags: , ,

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.)

October 13, 2014

How to make a SIGGRAPH paper

Filed under: Real — liyiwei @ 11:08 pm
Tags: , ,

There is a course in the upcoming SIGGRAPH Asia 2014 conference on how to make a SIGGRAPH paper.

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