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Calibrating LLM Judges: Linear Probes for Fast and Reliable Uncertainty Estimation

arXiv:2512.22245v1 Announce Type: new Abstract: As LLM-based judges become integral to industry applications, obtaining well-calibrated uncertainty estimates efficiently has become critical for production deployment. However, existing techniques, such as verbalized confidence and multi-generation methods, are often either poorly calibrated or…

The Affine Divergence: Aligning Activation Updates Beyond Normalisation

arXiv:2512.22247v1 Announce Type: new Abstract: A systematic mismatch exists between mathematically ideal and effective activation updates during gradient descent. As intended, parameters update in their direction of steepest descent. However, activations are argued to constitute a more directly impactful quantity…

Interpretable Perturbation Modeling Through Biomedical Knowledge Graphs

arXiv:2512.22251v1 Announce Type: new Abstract: Understanding how small molecules perturb gene expression is essential for uncovering drug mechanisms, predicting off-target effects, and identifying repurposing opportunities. While prior deep learning frameworks have integrated multimodal embeddings into biomedical knowledge graphs (BKGs) and…