arXiv Machine Learning

Influence Dynamics and Stagewise Data Attribution

arXiv:2510. 12071v2 Announce Type: replace Abstract: Current training data attribution (TDA) methods treat the influence one sample has on another as static, but neural networks learn in distinct stages that exhibit changing patterns of influence.

arXiv Machine Learning
2d ago

Where's the Indirect Evidence? Investigating Grammatical Generalization with Influence Functions

The paper investigates indirect evidence in language models by applying influence functions to identify training sentences that affect predictions on 15 grammatical phenomena from BLiMP. After filtering out direct evidence, the authors select the 60,000 most influential remaining sentences and show that removing them significantly degrades held‑out accuracy, more so than random removal. They further analyze the characteristics of this indirect evidence and demonstrate that clustering phenomena based on shared indirect evidence recovers known linguistic categories.

By William Dai, Zhenghao Herbert Zhou, Maya Viswanathan, Robert Frank
arXiv AI
Sep 18

Can Data Attribution Filter Out Subliminal Learning? Not Reliably

The paper investigates whether gradient‑based data attribution methods can filter out subliminal learning in language models. Three attribution techniques—GradCos, a contrastive variant, and EK‑FAC—are evaluated on three models and compared to divergence tokens, a strong baseline that requires counterfactual teacher models. Results show that EK‑FAC can mitigate some subliminal effects at the token level, but overall the methods are inconsistent and generally less effective than divergence tokens, especially when filtering entire samples.

By Moritz Weckbecker, Sweta Jena, Jonas M\"uller, Ponnurangam Kumaraguru, Sebastian Lapuschkin, Wojciech Samek, Louis Jaburi, Gon\c{c}alo Paulo