Tootfinder

efunc: An Efficient Function Representation without Neural Networks
Biao Zhang, Peter Wonka
https://arxiv.org/abs/2505.21319 https://…

efunc: An Efficient Function Representation without Neural Networks
Function fitting/approximation plays a fundamental role in computer graphics and other engineering applications. While recent advances have explored neural networks to address this task, these methods often rely on architectures with many parameters, limiting their practical applicability. In contrast, we pursue high-quality function approximation using parameter-efficient representations that eliminate the dependency on neural networks entirely. We first propose a novel framework for continuou…

We are truly living in a very dangerous idiocracy with insane, criminal, psychopathic assholes destroying our country.
#idiocracy #USPolitics
https://www.thenation.com/article/world/trump-evangelicals-christian-nationalists-iran-israel-end-times/

Communication-Aware Map Compression for Online Path-Planning: A Rate-Distortion Approach
Ali Reza Pedram, Evangelos Psomiadis, Dipankar Maity, Panagiotis Tsiotras
https://arxiv.org/abs/2506.20579

Communication-Aware Map Compression for Online Path-Planning: A Rate-Distortion Approach
This paper addresses the problem of collaborative navigation in an unknown environment, where two robots, referred to in the sequel as the Seeker and the Supporter, traverse the space simultaneously. The Supporter assists the Seeker by transmitting a compressed representation of its local map under bandwidth constraints to support the Seeker's path-planning task. We introduce a bit-rate metric based on the expected binary codeword length to quantify communication cost. Using this metric, we for…

On 3-periodic tangled networks and their untangling number
Toky Andriamanalina, Sonia Mahmoudi, Myfanwy E. Evans
https://arxiv.org/abs/2506.15252 https://

On 3-periodic tangled networks and their untangling number
Periodic networks serve as models for the structural organisation of biological and chemical crystalline systems. A single or multiple networks can have different configurations in space, where entanglement may arise due to the way the edges weave around each other. This entanglement influences the functional, physical, and chemical properties of the materials modelled by the networks, which highlights the need to quantify its complexity. In this paper, we describe a diagrammatic representation…

From AP religion news:
Southern Baptists target porn, sports betting, same-sex marriage and ‘willful childlessness’
https://apnews.com/article/southern-baptists-pornography-sports-betting-gay-marriage-aac48…

Southern Baptists to meet in Dallas for annual evangelical gathering
Southern Baptists meeting this week in Dallas will be asked to approve resolutions calling for a legal ban on pornography and reversing the U.S. Supreme Court’s approval of same-sex marriage. The proposed resolutions call for laws on gender, marriage and family based on what they say is biblical teaching. They also call for legislators to curtail sports betting and to support policies that promote childbearing. Delegates of the Southern Baptist Convention, the nation’s largest Protestant de…

Learning The Minimum Action Distance
Lorenzo Steccanella, Joshua B. Evans, \"Ozg\"ur \c{S}im\c{s}ek, Anders Jonsson
https://arxiv.org/abs/2506.09276

Learning The Minimum Action Distance
This paper presents a state representation framework for Markov decision processes (MDPs) that can be learned solely from state trajectories, requiring neither reward signals nor the actions executed by the agent. We propose learning the minimum action distance (MAD), defined as the minimum number of actions required to transition between states, as a fundamental metric that captures the underlying structure of an environment. MAD naturally enables critical downstream tasks such as goal-conditi…

Imaginary part of the conductivity using Kramers-Kronig relations
Jean-Christophe Pain, Mikael Tacu
https://arxiv.org/abs/2506.14941 https://

Imaginary part of the conductivity using Kramers-Kronig relations
In order to obtain the frequency-dependent photo-absorption in a plasma, both the real and imaginary parts of the AC conductivity are required. The real part can be deduced from the knowledge of the static conductivity (given by the Ziman-Evans formula for instance) and the Drude model. The imaginary part, required for the refraction index, can be obtained using the Kramers-Kronig relations. Usually, it is obtained by complex integration in the complex plane of the usual Kramers-Kronig relation…

Holography for QCD(Adj) and QCD(Adj) F
Anja Alfano, Nick Evans, Wanxiang Fan
https://arxiv.org/abs/2506.09456 https://arxiv.org/pdf/2…

Holography for QCD(Adj) and QCD(Adj)+F
We discuss confinement and chiral symmetry breaking in SU(Nc) gauge theories with fermions in the adjoint representation. There has been considerable work on studying these theories compactified on a small circle (with compactification scale 1/L large relative to the strong coupling scale of the theory). The weakly coupled IR theory of photons exhibits confinement through a density of magnetically charged instanton configurations. As the compactification scale 1/L approaches the strong coupling…

SiO and a super-stellar C/O ratio in the atmosphere of the giant exoplanet WASP-121b
Thomas M. Evans-Soma, David K. Sing, Joanna K. Barstow, Anjali A. A. Piette, Jake Taylor, Joshua D. Lothringer, Henrique Reggiani, Jayesh M. Goyal, Eva-Maria Ahrer, Nathan J. Mayne, Zafar Rustamkulov, Tiffany Kataria, Duncan A. Christie, Cyril Gapp, Jiayin Dong, Daniel Foreman-Mackey, Soichiro Hattori, Mark S. Marley

SiO and a super-stellar C/O ratio in the atmosphere of the giant exoplanet WASP-121b
Refractory elements such as iron, magnesium, and silicon can be detected in the atmospheres of ultrahot giant planets. This provides an opportunity to quantify the amount of refractory material accreted during formation, along with volatile gases and ices. However, simultaneous detections of refractories and volatiles have proved challenging, as the most prominent spectral features of associated atoms and molecules span a broad wavelength range. Here, using a single JWST observation of the ultr…