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Daniel Khashabi ๐Ÿ•Š๏ธ

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@DanielKhashabi

I play with intuitions and data.

Now: @jhuclsp @jhucompsci
Past: @allen_ai @uwnlp @Penn @cogcomp, @Illinois_Alma, @MSFTResearch

He/Him
cs.jhu.edu/~danielk/ Joined October 2012
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Daniel Khashabi ๐Ÿ•Š๏ธ Verified account @DanielKhashabi
For years since the GPT-2 paper, emergent in-context learning (ICL) from 'next-token' training has been treated as something deeply tied to ๐ก๐ฎ๐ฆ๐š๐ง ๐ฅ๐š๐ง๐ ๐ฎ๐š๐ ๐ž. But โ€ฆ is it?

Thrilled to share our latest result: ๐—š๐—ฒ๐—ป๐—ผ๐—บ๐—ถ๐—ฐ๐Ÿงฌ ๐—บ๐—ผ๐—ฑ๐—ฒ๐—น๐˜€ ๐˜๐—ฟ๐—ฎ๐—ถ๐—ป๐—ฒ๐—ฑ ๐™ค๐™ฃ๐™ก๐™ฎ ๐—ผ๐—ป '๐—ป๐—ฒ๐˜…๐˜-๐—ป๐˜‚๐—ฐ๐—น๐—ฒ๐—ผ๐˜๐—ถ๐—ฑ๐—ฒ ๐—ฝ๐—ฟ๐—ฒ๐—ฑ๐—ถ๐—ฐ๐˜๐—ถ๐—ผ๐—ป' ๐—ฒ๐˜…๐—ต๐—ถ๐—ฏ๐—ถ๐˜ ๐—œ๐—–๐—Ÿ!

What's remarkable is that their overall pattern closely mirrors LLMs:
โ†’ similar few-shot pattern induction
โ†’ similar log-linear gains with more shots
โ†’ similar improvement with model scale
... all learned purely from DNA (nucleotide) sequences.

๐—›๐—ผ๐˜„ ๐—ฑ๐—ถ๐—ฑ ๐˜„๐—ฒ ๐—ฐ๐—ผ๐—บ๐—ฝ๐—ฎ๐—ฟ๐—ฒ ๐—ด๐—ฒ๐—ป๐—ผ๐—บ๐—ถ๐—ฐ ๐˜ƒ๐˜€ ๐—น๐—ฎ๐—ป๐—ด๐˜‚๐—ฎ๐—ด๐—ฒ ๐—บ๐—ผ๐—ฑ๐—ฒ๐—น๐˜€? We built a suite of symbolic bitstring-reasoning tasks and encoded them two ways: (1) genomic alphabet (A/T/C/G) and (2) linguistic alphabet (digits). This lets us compare Evo2 (genomic) vs Qwen3 (language) under matched few-shot prompts.

๐—ช๐—ต๐˜† ๐—ถ๐˜ ๐—บ๐—ฎ๐˜๐˜๐—ฒ๐—ฟ๐˜€: To our knowledge, this is the first evidence of emergent ICL in non-[human]language symbolic sequences. It suggests that ICL is modality-agnostic, and a general consequence of large-scale autoregressive training on rich data distributions.

๐——๐—ผ๐—ฒ๐˜€ ๐—œ๐—–๐—Ÿ ๐—ถ๐—ป ๐—ด๐—ฒ๐—ป๐—ผ๐—บ๐—ถ๐—ฐ ๐˜ƒ๐˜€ ๐—น๐—ฎ๐—ป๐—ด๐˜‚๐—ฎ๐—ด๐—ฒ ๐—บ๐—ผ๐—ฑ๐—ฒ๐—น๐˜€ ๐—ฎ๐—ฐ๐˜ ๐—ถ๐—ฑ๐—ฒ๐—ป๐˜๐—ถ๐—ฐ๐—ฎ๐—น๐—น๐˜†? No! While share macro-level ICL trends, each shows domain-specific inductive biases traceable to properties of DNA vs human language.

๐——๐—ผ๐—ฒ๐˜€ ๐˜๐—ต๐—ถ๐˜€ ๐—บ๐—ฒ๐—ฎ๐—ป ๐—ต๐˜‚๐—บ๐—ฎ๐—ป ๐—น๐—ฎ๐—ป๐—ด๐˜‚๐—ฎ๐—ด๐—ฒ ๐˜€๐˜๐—ฟ๐˜‚๐—ฐ๐˜๐˜‚๐—ฟ๐—ฒ ๐—ถ๐˜€ ๐—ถ๐—ฟ๐—ฟ๐—ฒ๐—น๐—ฒ๐˜ƒ๐—ฎ๐—ป๐˜? No! But it suggests there may be universal distributional properties across different languages (human, DNA, etc.) that yield ICL. It remains an open question what these properties are.

Draft: huggingface.co/papers/2511.12โ€ฆ

Huge thanks to @N8Programs for leading the work, and to collaborators @anqi_liu33 @aamixsh @mrevsine @mike_schatz.

We're extremely thankful to the Evo2 team ( @BrianHie @pdhsu @garykbrixi @mgdurrant @MichaelPoli6 etc.). Not only these models help advance biomed research, now we see that they can help AI community better understand the fundamentals of pre-training.
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Daniel Khashabi ๐Ÿ•Š๏ธ Verified account @DanielKhashabi
Congratulations to my wonderful student Brian for winning this prestigious fellowship!
JHU Computer Science @JHUCompSci Oct 22
Congratulations to @BafnaNiyati, @stolenpyjak, and @zheyuanzhang99 on being named @amazon Doctoral Fellows! ๐ŸŽ‰ They were selected based on their outstanding publication records, research proposals, and mentor support. cs.jhu.edu/news/three-cs-โ€ฆ
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Daniel Khashabi ๐Ÿ•Š๏ธ Verified account @DanielKhashabi
Congrats to Sophia and the team on their NeurIPS acceptance! ๐ŸŽ‰

Actonomy taxonomy gives us a shared vocabulary for describing agent behavior!
Jie (Sophia) Gao Verified account @jiegaosophia Jul 15
Here is the story motivating our IAB workshop: Several months ago I was reading the agent literature. The basic agent architecture is now roughly settled, and papers describe a few primary behaviors, mostly planning and reasoning. But what are other behaviors?
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