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SoccerNet 2026 Player-Centric Ball-Action Spotting:Retraining and Post-Processing Extensions to the FOOTPASS Baselines
arXiv:2606.09679v1 Announce Type: new Abstract: We describe our system for the SoccerNet 2026 Player-Centric Ball-Action Spotting Challenge, which requires predicting who performs which action and when, across eight classes in broadcast soccer. Building on the three FOOTPASS baselines [1] (TAAD, TAAD+GNN, and TAAD+DST), we contribute four extensions: (1) gradient check pointing to enable full-backbone fine-tuning on a single GPU; (2) fusion of GNN logits into the DST encoder, combining...
Non-periodic Fourier propagation algorithms for partial differential equations
arXiv:2507.21757v2 Announce Type: replace Abstract: Spectral methods for partial differential equations (PDEs) with non-periodic boundary conditions arising in computational physics often use polynomial expansions on non-uniform grids. Here, we implement a Fourier method that employs fast trigonometric expansions on a uniform grid with non-periodic boundaries using fast discrete sine transforms (DST) or/and discrete cosine transforms (DCT) to solve parabolic PDEs. We implement this method in...
A century of sun records reveals clues to its 11-year rhythm
More than a century of observations from India’s historic Kodaikanal Solar Observatory, operated by the Indian Institute of Astrophysics (IIA), Bengaluru, has helped scientists uncover new clues about how the Sun’s surface responds to its 11-year activity cycle. The findings, based on an analysis of 34,000 images collected since 1907, could improve understanding of the processes that drive solar activity and eventually aid efforts to predict changes that affect the space environment around...
Openrsync: An implementation of rsync, by the OpenBSD team
This system has been merged into OpenBSD base. If you'd like to contribute to openrsync, please mail your patches to [email protected]. This repository is simply the OpenBSD version plus some glue for portability.
Catalyst that changes itself could make green hydrogen cheaper
Scientists in Bengaluru have discovered that a catalyst used to produce green hydrogen does something unexpected while on the job: it changes itself. The finding by researchers at the Centre for Nano and Soft Matter Sciences (CeNS), led by Neena S John and PhD scholar Palash Jyoti Gogoi, could help in designing more efficient and durable systems for producing hydrogen, a fuel widely seen as an important part of the transition away from fossil fuels. Hydrogen can be produced by splitting...
JA-SIREN: Deterministic Initialization for Sinusoidal Networks via Spectral Matching
Announce Type: new Abstract: Existing implicit neural representation (INR) approaches suffer from stochastic initialization that does not guarantee consistent or high-quality performance across runs, with variations reaching more than 2.5 dB (78%) in image regression. This variation is problematic for scientific computing and simulation, where result reproducibility is crucial. To address this problem, we present Jacobi-Anger Sinusoidal Representation Network (JA-SIREN), a deterministic...