Tootfinder

Uncertainty in Machine Learning
Hans Weytjens, Wouter Verbeke
https://arxiv.org/abs/2510.06007 https://arxiv.org/pdf/2510.06007

Uncertainty in Machine Learning
This book chapter introduces the principles and practical applications of uncertainty quantification in machine learning. It explains how to identify and distinguish between different types of uncertainty and presents methods for quantifying uncertainty in predictive models, including linear regression, random forests, and neural networks. The chapter also covers conformal prediction as a framework for generating predictions with predefined confidence intervals. Finally, it explores how uncerta…

It was almost the witching hour, so most people in this beach community are home and in bed. I was out #running and came across two big packs of teenagers, both of whom had someone with the stones to give me the “good evening, sir” treatment. Full on Eddie Haskell delivery. 😂
They are, of course, way too young to know about Eddie Haskell. What is their generational equivalent?
Anyway, t…

Big sad that I just found that #fireship got bought by a private equity firm in 2023. That explains why it recently became a slop machine just constantly publishing about AI.
Good for him getting the money he deserves, but the content isn't worth watching anymore in my opinion it's just the same "AI is going to take your job, buy this AI tool".

In 1873, a choir of formerly enslaved African American students from the newly established Fisk University, Tennessee, embarked on a fundraising tour of the UK https://www.nationalarchives.gov.uk/explore-the-collection/stories/photograph-of-the…

Evidence of violation of Case B recombination in Little Red Dots
G. P. Nikopoulos, D. Watson, A. Sneppen, V. Rusakov, K. E. Heintz, J. Witstok, G. Brammer
https://arxiv.org/abs/2510.06362

Evidence of violation of Case B recombination in Little Red Dots
Little Red Dots (LRDs) are a new class of compact extragalactic objects, with a v-shaped optical spectral energy distribution breaking close to the Balmer break wavelength, and broad, typically exponentially-shaped lines. They are believed to be supermassive black holes surrounded by very dense, ionized gas, leading us to explore for any departures from Case B recombination by examining the ratios of multiple hydrogen Balmer lines: $Hα$, $Hβ$, $Hγ$, and $Hδ$. We analyze a dozen high-S/N LRD…

It is frustrating when you're watching a bunch of coworkers set themselves up for failure, despite your literal pleading (as the subject matter expert).. begging.. not to. What they propose isn't going to work. For reasons you have explained several times. You say "you're about to shoot yourself in the foot guys." they smile and nod and continue loading rounds. "Its worth a shot" they say... No.. it isnt. Except afterwards it _still_ won't work and it'…

Goddammit
with the wind-down of the CPB and the ongoing proliferation of slop
I feel like I'm watching the information ecosystem's equivalent of the Antarctic glaciers bellyflopping into the sea

Testing Magnetic Field Configurations in Spider Pulsar PSR J1723-2837 with IXPE
Michela Negro, Haocheng Zhang, Niccol\`o Di Lalla, Slavko Bogdanov, Zorawar Wadiasingh, Noel Klingler, Jeremy Hare
https://arxiv.org/abs/2509.05240

Testing Magnetic Field Configurations in Spider Pulsar PSR J1723-2837 with IXPE
We present the first X-ray polarimetry observations of a redback millisecond pulsar binary, \src, with the Imaging X-ray Polarimetry Explorer (IXPE). Redbacks are compact binaries in which a rotation-powered millisecond pulsar interacts with a non-degenerate companion via an intrabinary shock, forming ideal laboratories for probing pulsar winds and relativistic shock physics, where ordered magnetic fields and particle acceleration shape the observed radiation. We conduct a spectro-polarimetric …

Folding lattice proteins confined on minimal grids using a quantum-inspired encoding
Anders Irb\"ack, Lucas Knuthson, Sandipan Mohanty
https://arxiv.org/abs/2510.01890 http…

Folding lattice proteins confined on minimal grids using a quantum-inspired encoding
Steric clashes pose a challenge when exploring dense protein systems using conventional explicit-chain methods. A minimal example is a single lattice protein confined on a minimal grid, with no free sites. Finding its minimum energy is a hard optimization problem, withsimilarities to scheduling problems. It can be recast as a quadratic unconstrained binary optimization (QUBO) problem amenable to classical and quantum approaches. We show that this problem in its QUBO form can be swiftly and cons…

Granulation on a quiet K dwarf: HD 166620 I. Spectral signatures as a function of line-formation temperature
Ancy Anna John, Khaled Al Moulla, Niamh K. O Sullivan, Jay Fitzpatrick, Andrew Collier Cameron, Ben S. Lakeland, Michael Cretignier, Annelies Mortier, Tim Naylor, Joe Llama, Suzanne Aigrain, Christian Hartogh, Shweta Dalal, Heather M. Cegla, Christopher A. Watson, Xavier Dumusque, Aldo F. Martinez Fiorenzano

Granulation on a quiet K dwarf: HD 166620 I. Spectral signatures as a function of line-formation temperature
As Radial velocity (RV) spectrographs reach unprecedented precision and stability below 1 m/s, the challenge of granulation in the context of exoplanet detection has intensified. Despite promising advancements in post-processing tools, granulation remains a significant concern for the EPRV community. We present a pilot study to detect and characterise granulation using the High-Accuracy Radial-velocity Planet Searcher for the Northern hemisphere (HARPS-N) spectrograph. We observed HD166620, a K…