Marek Rei
marekrei.bsky.social
Marek Rei
@marekrei.bsky.social
AI/ML/NLP researcher and Senior Lecturer at Imperial College London. Working on language models for planning, reasoning and interpretable decision making
Imperial College London is hiring 4 new Assistant/Associate Professors, in various areas of computing research. Application deadline 15 December.

www.imperial.ac.uk/jobs/search-...
Description
Please note that job descriptions are not exhaustive, and you may be asked to take on additional duties that align with the key responsibilities ment...
www.imperial.ac.uk
October 15, 2025 at 8:42 PM
Reposted by Marek Rei
To learn more:
Website: agentcoma.github.io
Preprint: arxiv.org/abs/2508.19988

A big thanks to my brilliant coauthors Lihu Chen, Ana Brassard, @joestacey.bsky.social, @rahmanidashti.bsky.social and @marekrei.bsky.social!

Note: We welcome submissions to the #AgentCoMa leaderboard from researchers 🚀
AgentCoMa
AgentCoMa is an Agentic Commonsense and Math benchmark where each compositional task requires both commonsense and mathematical reasoning to be solved. The tasks are set in real-world scenarios:…
agentcoma.github.io
August 28, 2025 at 2:01 PM
Reposted by Marek Rei
Excited to share our ICLR and NAACL papers! Please come and say hi, we're super friendly :)
April 22, 2025 at 6:42 PM
Reposted by Marek Rei
We are excited to celebrate the launch of the #GenAIHubLaunch today. The Hub's mission is to unlock the next generation of Generative AI technologies.

Congratulations to our Director, A. Aldo Faisal, for co-leading the Hub's Healthcare Working Group.

Find out more➡️ www.genai.ac.uk
gen ai
We will help to transform science, industry, the economy and society through developing the next generation of generative AI models.
www.genai.ac.uk
March 4, 2025 at 11:10 AM
Reposted by Marek Rei
Congratulations to our colleagues at @ai4healthcentre.bsky.social, including Aldo and Marek, for the launch of Nightingale AI. We are delighted you chose our event to announce this exciting initiative.
Today was the launch event of the @genaihub.bsky.social. We announced the development of Nightingale AI, a foundation world model for health. It was great to be on the panel for GenAI in Healthcare, among such amazing experts.
www.genai.ac.uk
March 5, 2025 at 9:54 AM
Today was the launch event of the @genaihub.bsky.social. We announced the development of Nightingale AI, a foundation world model for health. It was great to be on the panel for GenAI in Healthcare, among such amazing experts.
www.genai.ac.uk
March 4, 2025 at 6:37 PM
Reposted by Marek Rei
Do LLMs need rationales for learning from mistakes? 🤔
When LLMs learn from previous incorrect answers, they typically observe corrective feedback in the form of rationales explaining each mistake. In our new preprint, we find these rationales do not help, in fact they hurt performance!

🧵
February 13, 2025 at 3:38 PM
We have a funded PhD position available at @imperialcollegeldn.bsky.social to research LLMs for healthcare. Co-supervised by Aldo Faisal and myself. Applicable only for UK home students and would have to start already in Feb 2025. If interested, please contact me. @imperial-nlp.bsky.social
January 14, 2025 at 1:39 PM
Reposted by Marek Rei
We're hiring a lecturer or reader in embodied NLP at the University of Edinburgh!

Deadline: 31 Jan 2025
Call for applications: elxw.fa.em3.oraclecloud.com/hcmUI/Candid...
December 22, 2024 at 9:46 AM
We are hiring 6 lecturers at @imperialcollegeldn.bsky.social to work on AI, ML, graphics, vision, quantum and software engineering. This includes researchers working on LLMs, NLP, generative models and text applications. Deadline 6 Jan. @imperial-nlp.bsky.social www.imperial.ac.uk/jobs/search-...
Description
Please note that job descriptions are not exhaustive, and you may be asked to take on additional duties that align with the key responsibilities ment...
www.imperial.ac.uk
December 24, 2024 at 12:23 AM
Reposted by Marek Rei
Hi Bluesky, would like to introduce myself 🙂

I am PhD-ing at Imperial College under @marekrei.bsky.social’s supervision. I am broadly interested in LLM/LVLM reasoning & planning 🤖 (here’s our latest work arxiv.org/abs/2411.04535)

Do reach out if you are interested in these (or related) topics!
Meta-Reasoning Improves Tool Use in Large Language Models
External tools help large language models (LLMs) succeed at tasks where they would otherwise typically fail. In existing frameworks, LLMs learn tool use either by in-context demonstrations or via full...
arxiv.org
November 20, 2024 at 11:26 AM
Reposted by Marek Rei
Welcome to Bluesky to more of our NLP researchers at Imperial!! Looking forward to following everyone's work on here.

To follow us all click 'follow all' in the starter pack below

go.bsky.app/Bv5thAb
November 20, 2024 at 8:35 AM
Reposted by Marek Rei
Quick intro to myself.

I am a CS PhD in LLM Agents @imperial-nlp.bsky.social with @marekrei.bsky.social.

This is our latest work on LLM Agents:

StateAct: arxiv.org/abs/2410.02810 (outperforming ReAct by ~10%).

Feel free to reach out for collaboration.
StateAct: State Tracking and Reasoning for Acting and Planning with Large Language Models
Planning and acting to solve `real' tasks using large language models (LLMs) in interactive environments has become a new frontier for AI methods. While recent advances allowed LLMs to interact with o...
arxiv.org
November 20, 2024 at 10:35 AM
Extending pretrained LM-inspired architectures for genome modeling and releasing a tool for predicting epigenetic signals while being cell type-agnostic. Happy to be a co-author on this excellent paper by @Al_Murphy_ , now in Nature Communications. www.nature.com/articles/s41...
Predicting cell type-specific epigenomic profiles accounting for distal genetic effects - Nature Communications
Enformer Celltyping is a genomic deep learning model that predicts epigenetic signals in unseen cell types using distal DNA interactions and chromatin accessibility data. Here, authors show it general...
www.nature.com
November 18, 2024 at 8:54 AM
I recently wrote down 68 short summaries of ML and NLP papers. The aim is to give a quick overview of the core research contributions, without all the packaging. www.marekrei.com/blog/68-summ...
November 16, 2024 at 12:34 AM