activity
20232025
most citedTOFU: A Task of Fictitious Unlearning for LLMs

5 citations · 6 across the 8 of their papers we have counts for

collaborators

10 papers

cs.LG2025

Existing Large Language Model Unlearning Evaluations Are Inconclusive

Zhili Feng, Yixuan Even Xu, Alexander Robey +5

Machine unlearning aims to remove sensitive or undesired data from large language models. However, recent studies suggest that unlearning is often shallow, claiming that removed kn…

cs.AI2025

Antidistillation Sampling

Yash Savani, Asher Trockman, Zhili Feng +5

Frontier models that generate extended reasoning traces inadvertently produce rich token sequences that can facilitate model distillation. Recognizing this vulnerability, model own…

cs.CL2025

Unnatural Languages Are Not Bugs but Features for LLMs

Keyu Duan, Yiran Zhao, Zhili Feng +9

Large Language Models (LLMs) have been observed to process non-human-readable text sequences, such as jailbreak prompts, often viewed as a bug for aligned LLMs. In this work, we pr…

cs.CL2024

Adapting Language Models via Token Translation

Zhili Feng, Tanya Marwah, Nicolo Fusi +2

Modern large language models use a fixed tokenizer to effectively compress text drawn from a source domain. However, applying the same tokenizer to a new target domain often leads…

cs.LG2024★ 1 cited

Adaptive Data Optimization: Dynamic Sample Selection with Scaling Laws

Yiding Jiang, Allan Zhou, Zhili Feng +2

The composition of pretraining data is a key determinant of foundation models' performance, but there is no standard guideline for allocating a limited computational budget across…

cs.LG2024

Rethinking LLM Memorization through the Lens of Adversarial Compression

Avi Schwarzschild, Zhili Feng, Pratyush Maini +2

Large language models (LLMs) trained on web-scale datasets raise substantial concerns regarding permissible data usage. One major question is whether these models "memorize" all th…

cs.CV2024

RankCLIP: Ranking-Consistent Language-Image Pretraining

Yiming Zhang, Zhuokai Zhao, Zhaorun Chen +3

Self-supervised contrastive learning models, such as CLIP, have set new benchmarks for vision-language models in many downstream tasks. However, their dependency on rigid one-to-on…

cs.LG2024

An Axiomatic Approach to Model-Agnostic Concept Explanations

Zhili Feng, Michal Moshkovitz, Dotan Di Castro +1

Concept explanation is a popular approach for examining how human-interpretable concepts impact the predictions of a model. However, most existing methods for concept explanations…

cs.LG2024★ 5 cited

TOFU: A Task of Fictitious Unlearning for LLMs

Pratyush Maini, Zhili Feng, Avi Schwarzschild +2

Large language models trained on massive corpora of data from the web can memorize and reproduce sensitive or private data raising both legal and ethical concerns. Unlearning, or t…

cs.LG2023

On the Neural Tangent Kernel of Equilibrium Models

Zhili Feng, J. Zico Kolter

This work studies the neural tangent kernel (NTK) of the deep equilibrium (DEQ) model, a practical ``infinite-depth'' architecture which directly computes the infinite-depth limit…