Log inSign up
Sean Welleck
1,429 posts
Image
user avatar
Sean Welleck
@wellecks
Assistant Professor at CMU. Marathoner, @thesisreview.
wellecks.com
Joined April 2011
239
Following
7,143
Followers
  • user avatar
    Sean Welleck
    @wellecks
    Jan 15, 2025
    Excited to teach Advanced NLP at CMU this semester! Slides are on the course page as the course proceeds: cmu-l3.github.io/anlp-spring202… Lectures will be uploaded to Youtube: youtube.com/playlist?list=…
    759K
  • user avatar
    Sean Welleck
    @wellecks
    Feb 19, 2025
    Lecture 11: Reinforcement Learning youtu.be/disWB7qwcOk - RL basics - Reward functions for NLP - Optimizing rewards (policy gradient) - Stabilizing learning (e.g., KL penalty, PPO)
    user avatar
    Sean Welleck
    @wellecks
    Jan 15, 2025
    Excited to teach Advanced NLP at CMU this semester! Slides are on the course page as the course proceeds: cmu-l3.github.io/anlp-spring202… Lectures will be uploaded to Youtube: youtube.com/playlist?list=…
    85K
  • user avatar
    Sean Welleck
    @wellecks
    Sep 25, 2024
    Slides for my recent talk on: "Reasoning with inference-time compute" wellecks.com/data/welleck20… Papers: - Lean-STaR: arxiv.org/abs/2407.10040 - Easy-to-hard: arxiv.org/abs/2403.09472 - Compute-optimal inference: arxiv.org/abs/2408.00724 - Meta-generation: arxiv.org/abs/2406.16838
    Image
    65K
  • user avatar
    Sean Welleck
    @wellecks
    Apr 4, 2025
    Lecture 20: Advanced Post-Training youtu.be/yuJUkR2vvJM - Supervised Fine-tuning - Reward Modeling - Reinforcement Learning - Direct Preference Optimization
    user avatar
    Sean Welleck
    @wellecks
    Jan 15, 2025
    Excited to teach Advanced NLP at CMU this semester! Slides are on the course page as the course proceeds: cmu-l3.github.io/anlp-spring202… Lectures will be uploaded to Youtube: youtube.com/playlist?list=…
    72K
  • user avatar
    Sean Welleck
    @wellecks
    Mar 21, 2025
    Lecture 16: Parallelism and Scaling youtu.be/Mpg1YJfAEH0 - Basics of training on one device - Parallelization on multiple devices (e.g., data, tensor, pipeline parallel) - Combining and comparing strategies
    user avatar
    Sean Welleck
    @wellecks
    Jan 15, 2025
    Excited to teach Advanced NLP at CMU this semester! Slides are on the course page as the course proceeds: cmu-l3.github.io/anlp-spring202… Lectures will be uploaded to Youtube: youtube.com/playlist?list=…
    68K
  • user avatar
    Sean Welleck
    @wellecks
    Jan 29, 2025
    Lecture 5: Transformers - Attention - Transformers - Improved transformers
    user avatar
    Sean Welleck
    @wellecks
    Jan 15, 2025
    Excited to teach Advanced NLP at CMU this semester! Slides are on the course page as the course proceeds: cmu-l3.github.io/anlp-spring202… Lectures will be uploaded to Youtube: youtube.com/playlist?list=…
    42K
  • user avatar
    Sean Welleck
    @wellecks
    Jun 27, 2024
    What do nucleus sampling, tree-of-thought, and PagedAttention have in common? They're all part of our new survey: "From Decoding to Meta-Generation: Inference-time Algorithms for Large Language Models" arxiv.org/abs/2406.16838
    Image
    70K
  • user avatar
    Sean Welleck
    @wellecks
    Nov 22, 2023
    Announcing the L3 Lab at CMU! cmu-l3.github.io We focus on Learning, Language, and Logic, including: - Principles of ML for language - ML in high-trust areas, such as verifying math and programs - ML systems that improve over time Recruiting PhD students for fall 2024!
    Image
    71K
  • user avatar
    Sean Welleck
    @wellecks
    Mar 31, 2025
    Lecture 19: Efficient Inference youtu.be/jbHgzU4r7yU - Basics of efficient LLM inference - Speeding up single-token and sequence generation - Speeding up meta-generation strategies
    user avatar
    Sean Welleck
    @wellecks
    Jan 15, 2025
    Excited to teach Advanced NLP at CMU this semester! Slides are on the course page as the course proceeds: cmu-l3.github.io/anlp-spring202… Lectures will be uploaded to Youtube: youtube.com/playlist?list=…
    43K
  • user avatar
    Sean Welleck
    @wellecks
    Mar 14, 2025
    Lecture 15: Quantization (Guest lecture by @Tim_Dettmers) youtu.be/YXZZaje76r4 - Quantization basics - Quantized foundation models: LLM.int8() - Finetuning foundation models: QLoRA - Quantization and users
    user avatar
    Sean Welleck
    @wellecks
    Jan 15, 2025
    Excited to teach Advanced NLP at CMU this semester! Slides are on the course page as the course proceeds: cmu-l3.github.io/anlp-spring202… Lectures will be uploaded to Youtube: youtube.com/playlist?list=…
    58K
  • user avatar
    Sean Welleck
    @wellecks
    Feb 12, 2025
    Lecture 9: Fine-tuning - Fine-tuning basics - Instruction tuning - Knowledge distillation - Efficient fine-tuning youtube.com/watch?v=3qW996…
    user avatar
    Sean Welleck
    @wellecks
    Jan 15, 2025
    Excited to teach Advanced NLP at CMU this semester! Slides are on the course page as the course proceeds: cmu-l3.github.io/anlp-spring202… Lectures will be uploaded to Youtube: youtube.com/playlist?list=…
    42K
  • user avatar
    Sean Welleck
    @wellecks
    Mar 26, 2025
    Lecture 18: Advanced Inference Strategies youtu.be/jNpeYvZtJkw - Parallel, tree search, refinement strategies - Long chain-of-thought - Inference scaling laws
    user avatar
    Sean Welleck
    @wellecks
    Jan 15, 2025
    Excited to teach Advanced NLP at CMU this semester! Slides are on the course page as the course proceeds: cmu-l3.github.io/anlp-spring202… Lectures will be uploaded to Youtube: youtube.com/playlist?list=…
    41K
  • user avatar
    Sean Welleck
    @wellecks
    Jul 29, 2024
    Interested in LLMs and Lean? Check out LLMLean, a tool for using LLMs to suggest proof steps and complete proofs in Lean: github.com/cmu-l3/llmlean Here's an example of using LLMLean with GPT-4o to solve problems from Mathematics in Lean:
    Image
    00:00
    29K
  • user avatar
    Sean Welleck
    @wellecks
    Jan 21, 2024
    Teaching a new course on Neural Code Generation with @dan_fried! cmu-codegen.github.io/s2024/ Here is the lecture on pretraining and scaling laws: cmu-codegen.github.io/s2024/static_f…
    Image
    38K

New to X?

Sign up now to get your own personalized timeline!

Create account

By signing up, you agree to the Terms of Service and Privacy Policy, including Cookie Use.

Terms·Privacy·Cookies·Accessibility·Ads Info·© 2026 X Corp.
Don't miss what's happening
People on X are the first to know.
Log inSign up
Advertisement
Advertisement