Confessions of a researchaholic

2025-11-02

Hannah Cairo disproved the 40-year-old Mizohata-Takeuchi conjecture

Filed under: Real — liyiwei @ 11:16 am
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Most kids don’t like math, but this one managed to love it enough to self-teach advanced topics and eventually disprove a long-standing conjecture in harmonic analysis while still in high-school.
She treats math as art and it reflects on the way she designs her presentations and probably also approaches problems.



2025-11-01

Día de los Muertos at Davies Symphony Hall

Filed under: Real — liyiwei @ 5:03 pm
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I was aware of this unique event a few months back but didn’t get a chance to see the detailed program until the morning of the performance day. After sampling a few pieces and finding them engaging, I bought some of the last remaining seats. The performance was uniquely Latin American, with a mix of musical pieces and dance/costume movements.



2025-10-25

Gerrymandering and math

Filed under: Real — liyiwei @ 3:04 pm
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California’s proposition 50 turned out to be one of the most challenging voting issues that I have encountered, taking me a few days to think through. In the end it boiled down to this: if someone did a bad thing, should we do another bad thing to counter it?



During the process I also encountered some interesting related research, such as this podcast about math and redistricting (and social science more generally).

2025-10-19

Sharing unpublished research work

Filed under: Real — liyiwei @ 9:19 am
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Sharing a research work that is not yet published (not even a preprint on arXiv) can have several benefits, such as receiving early feedback, increasing visibility (especially for junior researchers), and attracting potential collaborators.

On the other hand it also has some risks, such as being scooped by others or jeopardizing anonymity during the review process or public disclosure for patent application.

To maximize the benefits and minimize the risks, I suggest sharing only with trusted colleagues who have the expertise to provide constructive feedback and ethics to maintain confidentiality. If the paper is still under review, check the conference/journal policies (e.g., this for SIGGRAPH). For patent application, any public disclosure will invalidate international filings but there is a one-year window for US filings.

2025-10-18

Diwali party vultures and scavengers

Filed under: Imaginary,Real — liyiwei @ 3:05 pm
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The line for the Diwali party was too crowded earlier in the afternoon, so he went there later around the closing time, when only a few vultures and scavengers remained, to get some food.
https://www.instagram.com/p/DP9-CfUksmA/

2025-09-26

Biomarker from a visitor

Filed under: Real — liyiwei @ 5:31 pm
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While picking up some fallen leaves in the back yard I spotted a segment of black, and judging by the softness/humidity, still fresh, coyote scat, which is a reminder that the wild animals can come in anytime regardless of the fence or other human-made boundaries.

https://www.instagram.com/p/DPHSAOYD_7L/
https://www.behance.net/gallery/190359367/ExteriorMotoGStylus/modules/1353022065

2025-09-25

Burmese chat

Filed under: Real — liyiwei @ 6:15 pm
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On the train table next to him sat two girls chatting in a language unfamiliar to him. It sounded south-east Asian, a bit like Thai but unlike Vietnamese, Tagalog, or Indonesian.
He was curious about the language and asked them about it, and they told him that it is Burmese.

2025-09-24

AI languages

Filed under: Real — liyiwei @ 8:52 am
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I often find the patent disclosures hard to read (to the point that they could be good sleep inducers when one has a hard time falling asleep), and seem to be generated by some automatic procedures instead of directly written by humans even before the emergence of large language models (LLMs).
(If you have knowledge about this, feel free to let me know. I am pretty sure that in the minimum the patent law firms must have some sorts of document-templates even if not software.)

Fortunately, nowadays we can also use LLMs to summarize such documents (e.g., built-in within Acrobat Reader), which hints to a potential future in which all documents are synthesized and analyzed by AI, through which humans communicate with each other and with their AI agents, while the AI agents may evolve to communicate via their own languages that are more efficient than human languages but incomprehensible to humans.

2025-09-21

Studio 8 Film Festival – Lawrence Jordan Tribute at SFMOMA

Filed under: Real — liyiwei @ 3:52 pm
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Attended this screening of Lawrence Jordan’s films which I really enjoyed due to the sound tracks and his unique cut-out animation style.

During the QA session, he shared how he chose from his large collection of materials for use in his works, and I was impressed by how sharp he still was over the age of 90.

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