Confessions of a researchaholic

August 15, 2017

Napoleon height

Filed under: Real — liyiwei @ 2:49 pm

Napolean Bonaparte is said to be short.
I did not realize that he is about my height until today.

August 11, 2017

How to defeat an ideology

Filed under: Real — liyiwei @ 3:07 pm

The more we avoid or suppress an idea, the more powerful it becomes.

“The statements that make people mad are the ones they worry might be believed. I suspect the statements that make people maddest are those they worry might be true.” – What you can’t say by Paul Graham.

Engage and attack: attend-listen-embarass, rebut

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:

August 10, 2017

Leaving Hong Kong

Filed under: Real — liyiwei @ 3:32 pm

[Time for me to write this after the course/RPG requests start to flood in prior to the beginning of the next semester.]

I am joining Adobe Research in the bay area to increase the practical impacts of my research and reduce the excessive jet-lags I have to deal with.
This move is purely due to personal/geographical reasons; I love living in Hong Kong and being a professor.

I will remain affiliated with HKU for a while, without taking new PhD/MS/MPhil candidates or teaching classes. I will continue to help students through my open mentor program and internships with Adobe Research. Past course information is available under my homepage.

I would like to thank my family, friends, colleagues, collaborators, and students who have given me such a wonderful experience in Hong Kong. I will continue to explore this interesting world.

Hug <3

Specific thanks to:

Baining, Danny, Greg, Julie, and Marc for references;

Doug for all the advice and the book “a primer for university presidents”;

BH and dad for motivating and encouraging me to explore outside the bubble;

Pedro for relaying my application from HKUST to HKU which I was not aware of during that time;

Wenping and Yizhou for a vibrant graphics group;

CK and TT for advices on funding, service, and management;
Tomas, my last MSR intern, for joining me in Hong Kong;

Jun, my first official (no-shadow) student, for outstanding performance;
Qi, for bringing me into VR/display/perception research;
Mamba, my last HKU PhD student – I will do my best to help you succeed like your predecessors;

All my collaborators for the chance of learning from you and working on so many exciting projects;

DRPC members, especially Reynold, for all the fun in RPG recruiting;

DCDC members for their confidence in letting me teach 3 crucial courses: introductory programming, mobile computing, and machine learning;
Jolly for being the master TA for several classes;
HF for always kindly scheduling my classes in the afternoons;
KP for valuable experiences in teaching C1117;
Jack for leaving me C3314, which expelled teachers like the “defense against the dark arts” class in Hogwarts;

The general and technical office staff, especially Wandy, Priscilla, and Olive for all the paper works and Maria for dealing with my always incorrect/incomplete/delayed expense/trip/grant reports;

Francis, you still owe me a lesson in Cantonese foul words.

August 3, 2017


Filed under: Real — liyiwei @ 8:45 pm

My flight was delayed in the airport, which was too noisy and disturbing for me to focus on reading or coding. So I figured the best thing to do is to draw what I saw around me. This is my first attempt to capture either people or moving objects.

I am comfortable with digital pen sketching on a Microsoft surface pro, even though MS Word started to crash once I added enough strokes.

I drew the left/right side of the canvas with my left/right hand to minimize occlusion.

Download (DOCX, 1.08MB)

July 29, 2017


Filed under: Real — liyiwei @ 5:54 pm

After realizing that there was no wifi in a cafe I went to this afternoon, I decided to spend time drawing some stuff around instead of just leaving.

Download (DOCX, 411KB)

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

July 27, 2017

John Urschel

Filed under: Real — liyiwei @ 10:10 am

Retiring NFL player who is also a current MIT math PhD student and his latest paper is about CVT.


Filed under: Real — liyiwei @ 9:06 am
Tags: ,

Looking at the paper titles for HPG 2017, I wonder if it can be renamed to HPRT (similar to how CVPR can be renamed to CVML).

When we have real-time ray tracing on mobile devices (the day will come), all the legacy graphics algorithms (i.e. tricks) will become obsolete.
I believe real-time RT, instead of machine learning, will be the end of traditional rendering tricks.

July 24, 2017

OKR 2017

Filed under: Real — liyiwei @ 9:09 am

For OKR 2016, I rated myself 50 percent:

  • published only 2 top papers (with 2 student first authors)
  • shipped no product
  • graduated my first HKU PhD student who landed as a postdoc in USC
  • received slightly below 80 percent rating for the machine learning class
  • sketching level remains primitive
  • finished the art of war, got stuck in the beginning of the book of change
  • began the baroque cycle, but read a whole bunch of other books that I did not plan to
  • my heart rate remained above 40 beats per minute but I picked up something else

The default period is from July 2017 to June 2018 unless stated otherwise.

Publish top papers

Publish at least 4 papers in top graphics/HCI/vision/ML venues: ToG (including SIGGRAPH and SIGGRAPH Asia), CHI/UIST, NIPS/ICML, CVPR/ICCV.

Build top products

Ship at least one product with at least 1 million users, preferably one that can help content creation with workflows.

Develop top talents

Help at least 4 students publish in top graphics/HCI/vision/ML venues individually.

Graduate my second HKU PhD student.

Have fun, be awesome

Practice sketching to a professional level.

Finish the book of change, to renew my (now rusty) Chinese and crack the only Chinese classics that my grandfather did not during his life time.

Finish the baroque cycle, which I lost patience in the middle of the first volume (quicksilver).

Reduce my steady heart rate to the previous level – less than 40 beats per minute, and perfect all three core forms of the art I have started learning for about 1 year.

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