arXiv Machine Learning

FourierQK: Spectral Preprocessing of Query-Key Projections Improves Transformer Attention

arXiv:2607. 07478v1 Announce Type: new Abstract: FFT-based spectral preprocessing of learned query-key (Q/K) projections substantially improves transformer attention on character-level language modelling.

arXiv Computer Vision
Aug 31

Spectral Query-Key Product Weight Steering for Training-Free VLM Hallucination Mitigation

The paper introduces QK Product Steering, a data‑free, training‑free method that edits the query‑key product in vision‑language models to reduce object hallucination. By suppressing a few dominant singular modes in selected middle layers and mapping the edited product back to query weights, the approach lowers hallucination rates without affecting inference cost. Experiments on three GQA‑based VLMs show a 4.0% average reduction in CHAIR$_s$, with the effect localized to symmetric mutual‑attention channels.

By Karn Tiwari, Varnith Chordia, Prathosh A P
arXiv AI
Aug 18

Wiola 13M, a Gated Spiral Attention Architecture for Parameter Efficient Small Language Models

arXiv:2608. 14604v1 Announce Type: cross Abstract: Small language models in the ten to one hundred million parameter range are attractive for on device inference, rapid experimentation, and controlled scientific study, yet most of them reuse the standard transformer block without adaptation to the small scale regime.

By Aryuemaan Kumar Chowdhury, Praveen Oosa, Vineesha Reddy