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Rylan Schaeffer

21 accepted papers

2026

Item Response Scaling Laws: A Measurement Theory Approach for Efficient and Generalizable Neural Scaling Estimation

ICML 2026poster

Scaling laws provide a fundamental framework for understanding the performance of Large Language Models (LLMs), yet deriving them requires prohibitively expensive evaluations across thousands of checkpoints or millions of inference samples. To address this, we introduce Item Response Scaling Laws (I…

Cited by 0SourceScholar
2026

No, of Course I Can! Deeper Fine-Tuning Attacks That Bypass Token-Level Safety Mechanisms

ICLR 2026poster

Leading language model (LM) providers like OpenAI and Anthopic allow customers to fine-tune frontier LMs for specific use cases. To prevent abuse, these providers apply filters to block fine-tuning on overtly harmful data. In this setting, we make three contributions: First, while past work has show…

Cited by 0SourceScholar
2026

Position: Multiple Definitions & Unrealistic Assumptions of Model Collapse Distract from Real World Threats

ICML 2026poster

The proliferation of AI-generated content online has fueled concerns over \textit{model collapse}, a degradation in future generative models' performance when trained on synthetic data generated by earlier models. Industry leaders, premier research journals and popular science publications alike hav…

Cited by 0SourceScholar
2026

Pretraining Scaling Laws for Generative Evaluations of Language Models

ICLR 2026poster

Neural scaling laws have driven the field's ever-expanding exponential growth in parameters, data and compute. While scaling behaviors for pretraining losses and discriminative benchmarks are well established, generative benchmarks such as mathematical problem-solving or software engineering remain…

Cited by 0SourceScholar
2026

Truthfulness Does Not Scale Like Reasoning: Why Polling Fails as a Proxy Verifier

ICML 2026poster

Pass@$k$ and other methods of scaling inference compute can improve language model performance in domains with external verifiers, including mathematics and code, where incorrect candidates can be filtered reliably. This raises a natural question: can we similarly scale compute to elicit gains in tr…

Cited by 0SourceScholar
2025

Collapse or Thrive: Perils and Promises of Synthetic Data in a Self-Generating World

ICML 2025poster

What happens when generative machine learning models are pretrained on web-scale datasets containing data generated by earlier models? Some prior work warns of “model collapse” as the web is overwhelmed by synthetic data; other work suggests the problem can be contained (i.e. collapse can be avoided…

Cited by 8SourcePDFScholar
2025

Failures to Find Transferable Image Jailbreaks Between Vision-Language Models

ICLR 2025poster

The integration of new modalities into frontier AI systems offers exciting capabilities, but also increases the possibility such systems can be adversarially manipulated in undesirable ways. In this work, we focus on a popular class of vision-language models (VLMs) that generate text outputs conditi…

Cited by 3SourcePDFScholar
2025

How Do Large Language Monkeys Get Their Power (Laws)?

ICML 2025oral

Recent research across mathematical problem solving, proof assistant programming and multimodal jailbreaking documents a striking finding: when (multimodal) language model tackle a suite of tasks with multiple attempts per task -- succeeding if any attempt is correct -- then the negative log of the…

Cited by 0SourcePDFScholar
2025

Position: Machine Learning Conferences Should Establish a "Refutations and Critiques" Track

NeurIPS 2025oral

Science progresses by iteratively advancing and correcting humanity's understanding of the world. In machine learning (ML) research, rapid advancements have led to an explosion of publications, but have also led to misleading, incorrect, flawed or perhaps even fraudulent studies being accepted and s…

Cited by 0SourceScholar
2025

Uncovering Latent Memories in Large Language Models

ICLR 2025poster

Frontier AI systems are making transformative impacts across society, but such benefits are not without costs: models trained on web-scale datasets containing personal and private data raise profound concerns about data privacy and security. Language models are trained on extensive corpora including…

Cited by 0SourcePDFScholar
2025

Why Has Predicting Downstream Capabilities of Frontier AI Models with Scale Remained Elusive?

ICML 2025poster

Predictable behavior from scaling advanced AI systems is an extremely desirable property for engineers, companies, economists and governments alike, and while a well-established literature exists on how pretraining performance scales, predictable scaling behavior on downstream capabilities remains e…

Cited by 14SourcePDFScholar
2023

DecodingTrust: A Comprehensive Assessment of Trustworthiness in GPT Models

NeurIPS 2023oral

Generative Pre-trained Transformer (GPT) models have exhibited exciting progress in capabilities, capturing the interest of practitioners and the public alike. Yet, while the literature on the trustworthiness of GPT models remains limited, practitioners have proposed employing capable GPT models for…

2023

Emergence of Sparse Representations from Noise

ICML 2023poster

A hallmark of biological neural networks, which distinguishes them from their artificial counterparts, is the high degree of sparsity in their activations. This discrepancy raises three questions our work helps to answer: (i) Why are biological networks so sparse? (ii) What are the benefits of this…

Cited by 16SourcePDFScholar
2023

Self-Supervised Learning of Representations for Space Generates Multi-Modular Grid Cells

NeurIPS 2023poster

To solve the spatial problems of mapping, localization and navigation, the mammalian lineage has developed striking spatial representations. One important spatial representation is the Nobel-prize winning grid cells: neurons that represent self-location, a local and aperiodic quantity, with seemingl…

Cited by 22SourcePDFScholar
2022

No Free Lunch from Deep Learning in Neuroscience: A Case Study through Models of the Entorhinal-Hippocampal Circuit

NeurIPS 2022accept

Research in Neuroscience, as in many scientific disciplines, is undergoing a renaissance based on deep learning. Unique to Neuroscience, deep learning models can be used not only as a tool but interpreted as models of the brain. The central claims of recent deep learning-based models of brain circui…

Cited by 73SourcePDFScholar
2021

Efficient online inference for nonparametric mixture models

UAI 2021poster

Natural data are often well-described as belonging to latent clusters. When the number of clusters is unknown, Bayesian nonparametric (BNP) models can provide a flexible and powerful technique to model the data. However, algorithms for inference in nonparametric mixture models fail to meet two criti…

2020

Reverse-engineering recurrent neural network solutions to a hierarchical inference task for mice

NeurIPS 2020poster

We study how recurrent neural networks (RNNs) solve a hierarchical inference task involving two latent variables and disparate timescales separated by 1-2 orders of magnitude. The task is of interest to the International Brain Laboratory, a global collaboration of experimental and theoretical neuros…

Cited by 41SourcePDFScholar