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Fabrizio Frasca

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#machine learning Preprint Oct 2026

Learning Cross-Model Activation Alignments with Explicit Many-to-Many Layer Maps

LLMs are released at a rapid pace, raising a natural question: how do two independently trained models relate, both in which layers correspond and in how features transform between them? We study this by learning an activation alignment, a map from a source model's layerwise activations to a target's. Our method, MATCH...

А. Ю. Судаков, Guy Bar-Shalom, Fabrizio Frasca et al. · 0 citations
#machine learning Preprint Sep 2026

Permutation-Equivariant Flow Matching for Alignment-Free Neural Weight Generation

This work parameterize a flow-matching velocity field with a permutation-equivariant Graph Meta Network, enabling direct learning from independently trained networks without alignment, and shows how permutation equivariance enables learning from diverse collections of independently trained networks without permutation...

Arkadi Piven, Yam Eitan, Guy Bar-Shalom et al. · 0 citations
Preprint Aug 2026

UniProbe: A Learnable Token-Level Hallucination Detector for Large VLMs using Multi-Structural Internal Representations

UniProbe is introduced, a lightweight, unified, learnable detector that models a frozen LVLM's heterogeneous computational trace from a single forward pass and achieves state-of-the-art token-level and object-hallucination detection.

Dvir Samuel, Guy Bar-Shalom, Fabrizio Frasca et al. · 0 citations

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