arXiv Machine Learning

The Computational Value of Sensory-Aligned Receptive Fields Depends on Neuronal Expressivity

The study investigates whether sensory-aligned receptive fields provide computational benefits beyond mere resource efficiency in recurrent networks of Expressive Leaky Memory neurons. Across auditory and event-based visual classification tasks, receptive fields aligned with task-relevant sensory coordinates improve test accuracy compared to budget-matched random fields, but this advantage disappears when coordinates are scrambled or irrelevant. The benefit diminishes as neuronal expressivity increases, and generic synaptic sparsity regularization only partially recovers performance, indicating that structured receptive fields act as a computational prior beyond sparsity alone.

arXiv Machine Learning
Aug 20

Beyond receptive fields: sequence-pooled normalization can supply most of a sequence labeler's context

The paper argues that a convolutional sequence labeler’s receptive field is not the sole source of context. When a normalization layer computes statistics across the entire sequence at inference, it creates a sequence‑spanning path that supplies global context, effectively replacing the need for a larger receptive field. Experiments on synthetic labeling tasks, simulated genomes, and real 1000 Genomes haplotypes show that this global summary can match or exceed the performance of larger receptive fields, and that ablating receptive‑field‑enlarging blocks overestimates their importance.

By Qing Tian
Hugging Face Trending Papers
Aug 19

Beyond receptive fields: sequence-pooled normalization can supply most of a sequence labeler's context

The paper argues that a convolutional sequence labeler’s receptive field is not the sole source of context; a normalization layer that computes statistics across the entire sequence at inference creates a global context path that bypasses the receptive field. By analyzing the Jacobian of the normalization layer, the authors show that this path provides almost all the benefit of a larger receptive field, especially when labels appear in long runs. Experiments on synthetic data, simulated genomes, and real 1000 Genomes haplotypes demonstrate that closing this path can multiply the value of enlarging the receptive field by up to an order of magnitude, and that ablating receptive‑field‑enlarging blocks overestimates their contribution due to this hidden path.

arXiv AI
Jun 2

Rare Events, Real Signals: Functional Ensembles as Units of Computation in Deep Spiking Networks

arXiv:2606. 00073v1 Announce Type: cross Abstract: We investigate how internal representations emerge across hierarchical processing systems by introducing a neuroscience-inspired framework for analyzing deep spiking neural networks (SNN) through the lens of functional connectivity.

By Aditi Aravind, Konstantinos Ladakis, Mario Alexios Savaglio, Stelios M. Smirnakis, Maria Papadopouli
arXiv AI
Jul 21

Emergent Hierarchical Monosemantic Neurons from the Group-Contrastive Forward-Forward Algorithm

arXiv:2607. 16295v1 Announce Type: cross Abstract: Mechanistic interpretability has made significant strides in understanding neural network representations, with sparse dictionary learning (SDL) methods, most prominently sparse autoencoders, as a central paradigm.

By Yiming Tang, Qinglin Qi, Zhaoqian Yao, Harshvardhan Saini, Dianbo Liu