activity
20242026
most citedLarge language models can help boost food production, but be mindful of their risks

5 citations · 10 across the 12 of their papers we have counts for

collaborators

13 papers

cs.LG2026

Story Imprinting: AI Assistants Absorb Traits from Human Characters They Resemble

Jorio Cocola, Lev McKinney, Harry Mayne +2

Language models are trained to implement a helpful AI Assistant character (e.g., Claude). We explore how finetuning on synthetic stories affects this character. Does it change the…

cs.LG2026

Value Leakage: An LLM's Answers Are Silently Shaped by Its Own Values

Jan Betley, Johannes Treutlein, Jan Dubiński +5

People use language models for practical questions whose answers are difficult to verify. We show that models exhibit covert value leakage: the information they provide is influenc…

cs.AI2026

Think Fast: Estimating No-CoT Task-Completion Time Horizons of Frontier AI Models

Dewi Gould, Francis Rhys Ward, Anders Cairns Woodruff +18

Many efforts to ensure frontier AI models are safe rely on monitoring their chain-of-thought (CoT) reasoning. If models become able to perform sufficiently complex reasoning intern…

cs.CL2026

Negation Neglect: When models fail to learn negations in training

Harry Mayne, Lev McKinney, Jan Dubiński +3

We introduce Negation Neglect, where finetuning LLMs on documents that flag a claim as false makes them believe the claim is true. For example, models are finetuned on documents th…

cs.AI2026

A Positive Case for Faithfulness: LLM Self-Explanations Help Predict Model Behavior

Harry Mayne, Justin Singh Kang, Dewi Gould +3

LLM self-explanations are often presented as a promising tool for AI oversight, yet their faithfulness to the model's true reasoning process is poorly understood. Existing faithful…

cs.CL2025

Measuring what Matters: Construct Validity in Large Language Model Benchmarks

Andrew M. Bean, Ryan Othniel Kearns, Angelika Romanou +39

Evaluating large language models (LLMs) is crucial for both assessing their capabilities and identifying safety or robustness issues prior to deployment. Reliably measuring abstrac…

cs.LG2025

LLMs Don't Know Their Own Decision Boundaries: The Unreliability of Self-Generated Counterfactual Explanations

Harry Mayne, Ryan Othniel Kearns, Yushi Yang +4

To collaborate effectively with humans, language models must be able to explain their decisions in natural language. We study a specific type of self-explanation: self-generated co…

cs.CL2025

LINGOLY-TOO: Disentangling Reasoning from Knowledge with Templatised Orthographic Obfuscation

Jude Khouja, Lingyi Yang, Karolina Korgul +6

Frontier language models demonstrate increasing ability at solving reasoning problems, but their performance is often inflated by circumventing reasoning and instead relying on the…

cs.LG2024★ 1 cited

Can sparse autoencoders be used to decompose and interpret steering vectors?

Harry Mayne, Yushi Yang, Adam Mahdi

Steering vectors are a promising approach to control the behaviour of large language models. However, their underlying mechanisms remain poorly understood. While sparse autoencoder…

cs.LG2024★ 2 cited

How Does DPO Reduce Toxicity? A Mechanistic Neuron-Level Analysis

Yushi Yang, Filip Sondej, Harry Mayne +2

Safety fine-tuning algorithms reduce harmful outputs in language models, yet their mechanisms remain under-explored. Direct Preference Optimization (DPO) is a popular choice of alg…

cs.CL2024★ 1 cited

LINGOLY: A Benchmark of Olympiad-Level Linguistic Reasoning Puzzles in Low-Resource and Extinct Languages

Andrew M. Bean, Simi Hellsten, Harry Mayne +5

In this paper, we present the LingOly benchmark, a novel benchmark for advanced reasoning abilities in large language models. Using challenging Linguistic Olympiad puzzles, we eval…

cs.CY2024★ 5 cited

Large language models can help boost food production, but be mindful of their risks

Djavan De Clercq, Elias Nehring, Harry Mayne +1

Coverage of ChatGPT-style large language models (LLMs) in the media has focused on their eye-catching achievements, including solving advanced mathematical problems and reaching ex…

cs.LG2024★ 1 cited

Unsupervised Learning Approaches for Identifying ICU Patient Subgroups: Do Results Generalise?

Harry Mayne, Guy Parsons, Adam Mahdi

The use of unsupervised learning to identify patient subgroups has emerged as a potentially promising direction to improve the efficiency of Intensive Care Units (ICUs). By identif…