Rohit Vashisht
@rohitv.bsky.social
140 followers 140 following 63 posts
Evolutionary Biology | Healthcare Analytics | Carnatic Music @UCSF | past @Stanford https://rohit43.github.io/
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rohitv.bsky.social
I remember (pre-COVID) great debates usually in conferences about the value of providing un-adjusted estimates to illustrate likely Simpson paradox (among other bias) and hence the need for adjustments in observational studies. Those discussion never really went anywhere in practice.
Reposted by Rohit Vashisht
mariaglymour.bsky.social
One of the fun things about launching @timead.bsky.social is the amazing early career folks. We started a "scientist spotlight" website section. The 3 posted are just our first few - really gratifying to see the work of Master's & PhD students, and post-docs -more spotlights coming!

bit.ly/3VCa84g
rohitv.bsky.social
Love writing math? Tex is the only way :-)

Try @typst.app if you haven’t allready.
Reposted by Rohit Vashisht
mariaglymour.bsky.social
I wrote a LinkedIn post on advice for incoming Master's students in public health and epidemiology. tl;dr: do hard things, get help when needed, make friends and thank people, and have fun - it's amazing. #EpiSky #DataSciSky #PublicHealth #GradSchool
Full article: bit.ly/4neVYlE
Picture of feet on the edge of a diving board about to jump off backwards, with blue-painted toenails and a tattoo just above the ankle.
rohitv.bsky.social
Tired: Global interpreter lock for data heavy parallel processing in Python

Wired: Reading data in 1GB chunks and processing sequentially
rohitv.bsky.social
Data fog is a new one!

@caltrain.com station, SF.
Reposted by Rohit Vashisht
jchi-ucsd.bsky.social
We love to see JCHI's @kdpsingh.bsky.social, @ucsdhealth.bsky.social named one of 24 new ACMI Fellows!

His leadership in health AI, model governance & informatics policy is reshaping how AI is used responsibly in care.

Read more⤵️
amia.org/news-publica...
rohitv.bsky.social
Late night LLM training thoughts:

I’m increasingly appreciating APEs over other position embedding. Their simplicity makes them easy to implement and efficient in distributed training setups. APEs could also provide a stable foundation for enhancing the consistency of LLMs.
rohitv.bsky.social
qwen is good, like really good!
Reposted by Rohit Vashisht
kdpsingh.bsky.social
Statistician: What is zero-shot learning?

ML researcher: It’s when you don’t train your model, you just use it.

Stats: So you just take a shot?

ML: Exactly.

Stats: One shot…

ML: Exactly.

Stats: …

ML: Makes sense tho. Think of it like Python list indexing, where the first shot is the zeroeth.
rohitv.bsky.social
Tired: Zero shot learning

Wired: No shot learning
rohitv.bsky.social
Manuscript review requests are like poking one bee and getting the whole dang hive buzzing after you!

Say yes to one, and suddenly you’re swarmed with a zillion more “review this, please!” emails.
Reposted by Rohit Vashisht
kdpsingh.bsky.social
Mother: I have twins.

Doctor: Oh, so they were born on the same day?

Mother: No, they were born with the same propensity score.
rohitv.bsky.social
This is deep, very very deep!
rohitv.bsky.social
When I started post doc it was ‘patient like me’ then it was ‘patient like mine’ now ‘digital twin’ next ‘Artificial patient’ next to next ‘patient like my AP patient’ … circle of life
Reposted by Rohit Vashisht
kdpsingh.bsky.social
Tired: Adjusting for covariates

Wired: “Building a digital twin”
rohitv.bsky.social
If you understand the nullspace, you understand the matrix!

— Gilbert Strang
Reposted by Rohit Vashisht
kdpsingh.bsky.social
“Our model is probably in our view the best model for this task and the fastest and second cheapest but not the best performing but the benchmarks don’t reflect the nuances of real-world use” is a whole lot of words to say that it’s not SOTA.
rohitv.bsky.social
Looks like they took inspiration from Bilbo Baggins:

"I don't know half of you half as well as I should like, and I like less than half of you half as well as you deserve”
rohitv.bsky.social
Tired: Long context length

Wired: No context length