# Yuntian Deng

> Yuntian Deng is an Assistant Professor at Waterloo working on ProgramAsWeights, NeuralOS, implicit chain of thought, and real-world language-model use.

## Research directions

- [ProgramAsWeights (PAW)](https://yuntiandeng.com/#programasweights): A new programming paradigm that replaces symbolic code for fuzzy functions with compiled neural programs. Towards programming without code as an intermediary.
- [Neural World Models](https://yuntiandeng.com/#neuralos): Can generative models learn the behavior of interactive computing environments? We explore this through NeuralOS, which uses a neural generative model to simulate an operating system end to end.
- [Implicit Chain of Thought](https://yuntiandeng.com/#implicit-chain-of-thought): We internalize chain-of-thought reasoning into hidden computation. A 12-layer GPT-2 reaches 99.5% accuracy when multiplying two 20-digit numbers without emitting intermediate steps.
- [LLM Usage at Scale](https://yuntiandeng.com/#llm-usage): How do people actually use large language models? We collect and analyze millions of real-world conversations to understand usage patterns, safety, and emergent behaviors.

## Website and CV

- [Homepage](https://yuntiandeng.com/): Research overview, affiliations, media coverage, news, and professional service.
- [Full CV (PDF)](https://yuntiandeng.com/cv.pdf): Full academic curriculum vitae.
- [Publications](https://yuntiandeng.com/publications/): Publications and preprints by Yuntian Deng and collaborators on neural programs, neural world models, implicit chain of thought, and language models.
- [Group](https://yuntiandeng.com/group/): Meet the graduate students, visitors, and alumni of Yuntian Deng's research group at the University of Waterloo.
- [Demos](https://yuntiandeng.com/demos/): Explore open-source research demos from Yuntian Deng and collaborators, including ProgramAsWeights, NeuralOS, implicit chain of thought, and WildVis.
- [Talks](https://yuntiandeng.com/talks/): Research talks and seminars by Yuntian Deng on ProgramAsWeights, NeuralOS, implicit chain-of-thought reasoning, and natural language processing.
- [Teaching](https://yuntiandeng.com/teaching/): Courses taught by Yuntian Deng at the University of Waterloo, including CS 486/686 Introduction to Artificial Intelligence and CS 886 Topics in Language Models.