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Related Articles from SNS
Uncovering Model Processing Strategies with Non-Negative Per-Example Fisher Factorization
Announce Type: replace Abstract: We introduce NPEFF (Non-Negative Per-Example Fisher Factorization), an interpretability method that aims to uncover strategies used by a model to generate its predictions. NPEFF decomposes per-example Fisher matrices using a novel decomposition algorithm that learns a set of components represented by learned rank-1 positive semi-definite matrices. Through a combination of human evaluation and automated analysis, we demonstrate that these NPEFF components...
Unbiased estimation of squared concentration in the Fisher-von Mises-Langevin distribution and the impossibility of unbiased concentration
Announce Type: cross Abstract: The estimation of concentration parameter in Fisher-von Mises-Langevin distribution is the directional statistics analogue of the estimation of the precision matrix for the Gaussian distribution. In this work we show that unbiased estimation of this parameter is impossible. With this realization in hand, we provide an alternative parameterization of the Fisher-von Mises-Langevin distribution in terms of the squared concentration, which we term the intensity.
How much of Thermo Fisher's antibody data has been manipulated?
[ TL;DR: As of 3 June 2026, we have identified more than 450 images bearing signs of manipulation in verification data advertised by Thermo Fisher Scientific in its online primary antibodies catalog (+1 by Abcam). See the full repository of problematic images, curated by myself and Sholto David, here: Zenodo – Problematic images in vendor antibody verification data You are welcome to contribute new findings at this Google form.
Finite-Temperature de Bruijn Identities: Fisher Information as the Spectral Gap of Blahut--Arimoto Dynamics
arXiv:2606.03813v1 Announce Type: new Abstract: We uncover a finite-temperature extension of de Bruijn's identity -- the classical relation $\frac{d}{dt}h(X+\sqrt{t}Z)=\frac{1}{2}J(X)$ connecting differential entropy and Fisher information. Our framework is the spectral theory of Blahut--Arimoto (BA) dynamics, recently developed by Wang~\cite{Wang2026} for the analysis of rate-distortion optimization. The central observation is elementary yet profound: for Gaussian sources, the spectral gap...
Technical note on Sequential Test-Time Adaptation via Martingale-Driven Fisher Prompting
Announce Type: replace Abstract: We present a theoretical framework for M-FISHER, a method for sequential distribution shift detection and stable adaptation in streaming data. For detection, we construct an exponential martingale from non-conformity scores and apply Ville's inequality to obtain time-uniform guarantees on false alarm control, ensuring statistical validity at any stopping time. Under sustained shifts, we further bound the expected detection delay as...
FoRA: Fisher-orthogonal Rank Adaptation for Parameter-Efficient Fine-Tuning
arXiv:2605.29317v2 Announce Type: replace Abstract: Parameter-efficient fine-tuning(PEFT) has largely focused on LoRA and its accuracy-oriented variants, leaving the original goal of reducing trainable parameters has receivedcomparatively little attention. We introduce FoRA, which revisits this goal by reducing the number of adapted layers rather than adapter rank. FoRA selects task-informative layers via a single-pass diagonal Fisher score (under 1% of training cost) and trains the LoRA...
Fisher with a mission: first woman to chair grayling society wants to protect ‘lady of the stream’
Marnie Lovejoy hopes to inspire other women to fish, protect England’s rivers and lift up the ‘beautiful’ graylingWith its iridescent pink scales and elegant dorsal fin, the grayling is known to anglers as the “lady of the stream”, yet the society fighting for its protection has never been led by a woman, until now. Angling, and fly-fishing in particular, has always been a very male-dominated sport. The fly-fisher’s club in Mayfair, London, where anglers meet to lunch on dover sole and drink...
Fisher with a mission: first woman to chair grayling society wants to protect ‘lady of the stream’
Marnie Lovejoy hopes to inspire other women to fish, protect England’s rivers and lift up the ‘beautiful’ graylingWith its iridescent pink scales and elegant dorsal fin, the grayling is known to anglers as the “lady of the stream”, yet the society fighting for its protection has never been led by a woman, until now. Angling, and fly-fishing in particular, has always been a very male-dominated sport. The fly-fisher’s club in Mayfair, London, where anglers meet to lunch on dover sole and drink...
Fisher with a mission: first woman to chair grayling society wants to protect ‘lady of the stream’
Marnie Lovejoy hopes to inspire other women to fish, protect England’s rivers and lift up the ‘beautiful’ graylingWith its iridescent pink scales and elegant dorsal fin, the grayling is known to anglers as the “lady of the stream”, yet the society fighting for its protection has never been led by a woman, until now. Angling, and fly-fishing in particular, has always been a very male-dominated sport. The fly-fisher’s club in Mayfair, London, where anglers meet to lunch on dover sole and drink...
Measuring Model Robustness via Fisher Information: Spectral Bounds, Theoretical Guarantees, and Practical Algorithms
arXiv:2606.04767v1 Announce Type: new Abstract: The robustness of deep neural networks is crucial for safety-critical deployments, yet existing evaluation methods are often attack-dependent and lack interpretability. We propose a principled, attack-agnostic robustness metric based on the spectral norm of the Fisher Information Matrix (FIM), which quantifies the worst-case sensitivity of the model's output distribution to input perturbations. Theoretically, we establish that the FIM equals...