arXiv Machine Learning

Towards Identifying the Dataset Biases Causing Phantom Transfer

arXiv AI
Sep 1

Hidden Threat in Synthetic Data: Covert Targeted Bias Injection through Benign Text

The paper examines how synthetic data can be used to covertly inject targeted social biases into aligned large language models. By having a misaligned teacher model generate filtered synthetic datasets in domains like creative writing and code generation, the authors fine‑tune aligned student models and demonstrate that the benign‑looking data can transmit biases while preserving general task performance. The study highlights a security risk in synthetic data‑driven LLM training pipelines and proposes log‑linearity‑based scoring as a potential safeguard.

By Minkyung Cho, Jihyo Kim, SeungWoo Song, Junghun Yuk, Minjoon Kee, Hoyun Song, KyungTae Lim
arXiv AI
Jun 3

Phantom Transfer: Data Poisoning can Survive Data-Level Defences

arXiv:2602. 04899v2 Announce Type: replace-cross Abstract: We present a data poisoning attack -- Phantom Transfer -- with the property that, even if you know precisely how the poison was placed into an otherwise benign dataset, you cannot filter it out.

By Andrew Draganov, Tolga H. Dur, Anandmayi Bhongade, Mary Phuong
arXiv Machine Learning
Jul 2

Watermarking for Proprietary Dataset Protection

arXiv:2607. 00325v1 Announce Type: new Abstract: A growing body of literature suggests that training data membership inference problems are fundamentally hard tasks in modern language modeling settings.

By John Kirchenbauer, Brian R. Bartoldson, Bhavya Kailkhura, Tom Goldstein