Jonathan Cheng

Jonathan Cheng

@jonathancheng.bsky.social

English Literature PhD turned ML Researcher. I convert cold brews into noisy experiments. Foundation Models @ Apple NYC 🏳️‍🌈

4.8K followers1.9K following1.3K posts

The manga exhibition at the Brooklyn museum, featuring a manga representation of Moby Dick — in a world where this came out while I was in undergrad, would I have studied 19th c American lit?!

Jonathan Cheng reposted

Replying to @kjhealy.co

Which all just reeks of what happens when a status order gets upended by some new technique. Basically everyone who is under threat runs around shouting “Never mind what I appeared to value before, what I *really* value is this incredibly intangible thing I possess that also preserves my status”.

Jonathan Cheng reposted

New from our lab! #COLM2026 When people generate stories, they don't just write one prompt. Instead, they explore narrative space via branching edits 🌱 We reconstruct 24k of these edit trees 🌳 from chat logs and map edit types, story formats, how they relate to tree depth, and more!

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This paper and its predecessor have just been a joy to read.

alphaXiv@alphaxiv.org

On-Policy Distillation is surprisingly data-efficient, with a single query recovering 72% of the full-data gain because rollouts already cover 71.5% of the relevant state space. So the bottleneck is how slowly the student absorbs dense token-level teacher supervision www.alphaxiv.org/abs/2609.04172

Someone asked me what my ideal work environment looks like. And all I can imagine is me swiveling my chair, with a valley girl accent, saying “you already tried to increase the batch size, don’t do it, girlfriend!🌸”

TIL that my dad, who wasn’t close with biological parents, was wrong about his genealogy. He always thought he was 1/2 Spanish, 1/2 Chinese. TIL I learned that I’m 1/4 Peruvian! And I have a bunch of cousins in Peru and *Wales* 😂

The passage describing the wall of contorted, angry statues was foreshadowing…of bsky’s displeasure towards someone not liking Piranesi. So it’s more like a Hall. In the southwest wing, in the year the albatrosses arrived.

Ryan Moulton@moultano.bsky.social

This is the way that Bluesky is a bubble. Everyone loves Piranesi. Everyone goes crazy when someone new reads Piranesi.

Got around to reading Piransei. Anyone who saw me on the subway, would’ve seen me *really* trying to get into it. My take: The Book is a Hall of great Beauty in which very little happens. I walked its length twice and found the same Statues, and the Tide, when it came, did not carry me anywhere.

I really wanted to love it. — Those whose judgement I trust have written of this Hall with great feeling, and I wished to feel it too. — The writing style is very fun to emulate but not very fun to read (for me).

About to pose the classic weeb dilemma to my partner, would you rather watch: * a deeply serious and beautifully animated film about an aging Japanese actress * or… an anime about an idiosyncratic teenager using his power to usurp an American empire — also, robot fights!

Jonathan Cheng reposted

if you think students will be routinely collaborating with LLMs after graduation, #1 priority is to study rhetoric because you need to recognize BS and critique the rigor of an argument that *looks* good. the elite users are going to be like, philosophy, classics, and english majors.

Just watched Six the musical, and I’ve discovered: 1) the closer a musical is to a concert, the more I prefer it 2) Kirstin Maldonado from Pentatonix is one of the cast members right now!!! I think my favorite musical experience I’ve ever had?

The confluence of surviving gargantuan deadlines, catching up on research I wanted to do, and bingeing the new Olivia Rodrigo album is really, really hitting the right way. Oh, what’s that? Sun is shining, iced coffee in hand, and all my training jobs are emitting healthy logs? *skips*

Wish I knew Persona 4 was going to feature so prominently!

Melanie Walsh@mellymeldubs.bsky.social

Excited to share this. @neel2112.bsky.social, @mariaa.bsky.social, and I analyzed 500K anonymous ChatGPT convos (shared w/ consent from WildChat) to see if people were generating fiction. We found tons of stories, fanfiction & erotica. Many users iterated on the same stories for days and weeks.

Whenever someone says “no one asked for this” wrt LLMs — I always wish I had papers on hand about natural language search behaviors. Across companies, pre LLMs, there’s always a bucket of queries your engine might fail to handle because…the query writer had high hopes of what could be handled

Jonathan Cheng reposted