Confessions of a researchaholic

October 15, 2017

Stand a chance

Filed under: Real — liyiwei @ 1:20 pm
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Someone asked me whether he/she stands a chance to apply for a position.

Just go ahead and do it. I never care whether I stand a chance or not. The only thing I know for sure is that the chance is zero if I do not even try.

October 7, 2017

Dream catcher

Filed under: Real — liyiwei @ 9:23 am
Tags: ,

Waking up in the middle of the night, sometimes I can remember ideas from my dreams.

October 3, 2017

Burden

Filed under: Real — liyiwei @ 9:32 am
Tags: ,


water color by my dad

September 17, 2017

Devil in the house

Filed under: Imaginary,Real — liyiwei @ 2:39 pm
Tags: ,

You brought a devil into the house
It wants to leave
And takes your flesh

So just let it go

Teach yourself and your offspring well
So that none would not be fooled by the devil

Exercise your discipline
To await the devil to destroy itself

If you want to lure it back
Better yourself is the only way

September 8, 2017

Expresii appy hour

Filed under: Real — liyiwei @ 5:03 pm
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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.

September 6, 2017

Co-managing research materials

Filed under: Real — liyiwei @ 5:14 pm
Tags:

Instead of hosting research materials on our own servers (as I did in the old days for both ongoing projects and published outcomes), it is more flexible to share on GitHub/Bitbucket public/private repos that need revision control, and store the compiled files in other services, such as papers on research gate or semantic scholar, videos via YouTube/Vimeo, etc.

With this setup, the co-authors can edit the research together, and I have less to worry about server management.

August 28, 2017

git obliterate

Filed under: Real — liyiwei @ 11:17 am
Tags:

At the end of trying out BFG to purge a large compiled file from a repo, the following message was displayed:
😀


You can rewrite history in Git – don’t let Trump do it for real!
Trump’s administration has lied consistently, to make people give up on ever
being told the truth. Don’t give up: https://github.com/bkeepers/stop-trump

So with git, one no longer needs to be a rhetor to change the past.

August 23, 2017

Revision control based on lines vs operations

Filed under: Real — liyiwei @ 10:52 am
Tags:

I cannot believe I have not (really) noticed this earlier, but the current git/svn revision controls are based on simple line differences, without taking into account the actual editing operations which we actually did in SIGGRAPH 2011 for image editing.

As a very simple example, say a file contains an original line like this:

I love you. Do you love me?

User 1 breaks the line into two:

I love you.
Do you love me?

User 2 adds one word the line:

I love you. Do you love me too?

A revision control tool that considers editing operations can automatically merge the two edits:

I love you.
Do you love me too?

While the current svn/git tools, based on line differences, will simply give up and ask users for manual intervention.

August 22, 2017

ACM author rights

Filed under: Real — liyiwei @ 10:09 am
Tags:

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 16, 2017

Publishing two papers out of one submission

Filed under: Real — liyiwei @ 12:09 pm
Tags:

Co-authors and I submitted a paper with two main parts to X, a top venue in our field.
The reviews said the first part is good contribution but the second part is basically nothing, and rejected our paper.

We then revised the paper and submitted to Y, another top venue in our field.
The reviews said the exact opposite from X, but accepted our paper conditional upon the removal the first part.

So we split the paper, with the second part to Y and the first part to (the next round of) X.

😀

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