3 papers
astro-ph.IM2026
Photon-Ring Retarded- Time Tomography: The Mahakal Phenomenon
Hina Dixit, Abhinav Chauhan
Near-critical null geodesics generate image-order channels with distinct mappings, delays, and weights, so one observer-time data set samples multiple source epochs. We organize th…
cs.LG2026
BF1: A Causal Dyadic Sparse-Attention Retrofit for Efficient Long-Context Transformers
Hina Dixit
Dense causal attention remains expensive at long context even when implemented with highly optimized exact kernels. We study BF1, a deterministic block-aligned dyadic sparse-attent…
cs.CR2026
Echelon: Auditable Aggregate-Only Language-Model Adaptation Across Privacy Boundaries
Hina Dixit, Punit Kumar, Irene Tenison +1
Cross-organization language-model adaptation increasingly faces hard governance constraints: in many deployments, device-level model state-parameters, activations, optimizer state,…