Tootfinder

Stealing Accuracy: Predicting Day-ahead Electricity Prices with Temporal Hierarchy Forecasting (THieF)
Arkadiusz Lipiecki, Kaja Bilinska, Nicolaos Kourentzes, Rafal Weron
https://arxiv.org/abs/2508.11372

Stealing Accuracy: Predicting Day-ahead Electricity Prices with Temporal Hierarchy Forecasting (THieF)
We introduce the concept of temporal hierarchy forecasting (THieF) in predicting day-ahead electricity prices and show that reconciling forecasts for hourly products, 2- to 12-hour blocks, and baseload contracts significantly (up to 13%) improves accuracy at all levels. These results remain consistent throughout a challenging 4-year test period (2021-2024) in the German power market and across model architectures, including linear regression, a shallow neural network, gradient boosting, and a s…

Die letzte Kommunalwahl in NRW war 2020, damals stand das Thema Klima ganz oben auf der Agenda. Jetzt geht es um Wirtschaft, Sicherheit, Migration. Klimaschutz ist kaum ein Thema mehr. Und das in einem der Bundesländer der Flutkatastrophe im Ahrtal 2021. Ob der Klimawandel weiß, dass er sich jetzt mal zurückhalten soll, weil er kein Trendthema mehr ist?
#KommunalwahlNRW

Gravitational Recoil and Suppression of Super Massive Black Hole Seeds in the Early Universe
Bisweswar Sen
https://arxiv.org/abs/2509.10564 https://arxiv.o…

Gravitational Recoil and Suppression of Super Massive Black Hole Seeds in the Early Universe
We investigate the impact of gravitational-wave (GW) recoil on the growth of supermassive black holes (SMBHs) in the early Universe. Forming ~10^9 Msun SMBHs by z ~ 6 is challenging and may require hierarchical mergers of smaller seed black holes. We extend a semi-analytic seed model (Sassano et al. 2021) by explicitly incorporating GW recoil physics. Our model includes: (1) recoil velocity formulae calibrated to numerical relativity for spinning, unequal-mass BH binaries (Campanelli et al. 200…

Of Holidays and Puppy Love https://muz4now.com/2021/of-holidays-and-puppy-love/

Of Holidays and Puppy Love
Stan Stewart - @muz4now

Effective source for second-order self-force calculations: quasicircular orbits in Schwarzschild spacetime
Samuel D. Upton, Barry Wardell, Adam Pound, Niels Warburton, Leor Barack
https://arxiv.org/abs/2508.00087

Effective source for second-order self-force calculations: quasicircular orbits in Schwarzschild spacetime
Recent years have seen the first production of "post-adiabatic" gravitational-waveform models based on second-order gravitational self-force theory. These models rely on calculations of an effective source in the perturbative second-order Einstein equation. Here, for the first time, we detail the calculation of the effective source in a Schwarzschild background, which underlies the second-order self-force results in [Phys. Rev. Lett. 127, 151102 (2021); ibid. 128, 231101 (2022); ibid. 130, 2414…

CONCERTO: forward modeling of interferograms for calibration
A. Lundgren, A. Beelen, G. Lagache, F. -X. Desert, A. Fasano, J. Macias-Perez, A. Monfardini, P. Ade, M. Aravena, E. Barria, A. Benoit, M. Bethermin, J. Bounmy, O. Bourrion, G. Bres, C. De Breuck, M. Calvo, A. Catalano, C. Dubois, C. A Duran, T. Fenouillet, J. Garcia, G. Garde, J. Goupy, C. Hoarau, W. Hu, J. -C. Lambert, F. Levy-Bertrand, J. Marpaud, R. Parra, G. Pisano, N. Ponthieu, L. Prieur, D. Quinatoa, S. Roni, S. Roudie…

CONCERTO: forward modeling of interferograms for calibration
The CarbON [CII] line in post-rEionisation and ReionisaTiOn epoch (CONCERTO) instrument is a low-resolution mapping Fourier-transform spectrometer, based on lumped-element kinetic inductance detector (LEKID) technology, operating at 130- 310 GHz. It was installed on the 12-meter APEX telescope in Chile in April 2021 and operated until December 2022. CONCERTO's main science goal is to constrain the [CII] line fluctuations at high redshift. To reach that goal CONCERTO observed 1.4 deg2 in the COS…

En 2018, un verdict belge semblait enfin mettre fin Š une affaire vieille de 20 ans.
En 2025, certaines indemnisations sont toujours en suspens.
Pendant ce temps, en France, l’enquête OKC/Spatz — rouverte officiellement en 2021 — n’a toujours pas abouti.
Cela interroge :

EUV Wave and Coronal Seismology
Pooja Devi, Ramesh Chandra, Arun Kumar Awasthi, Brigitte Schmieder, Reetika Joshi
https://arxiv.org/abs/2507.01400 https://…

EUV Wave and Coronal Seismology
We present an investigation of the Extreme-Ultraviolet (EUV) wave linked to the flare that occurred on 28 October 2021, along with the associated coronal loop oscillation and type II radio burst. The EUV wave was observed by multi-viewpoint with Solar Dynamics Observatory and Solar Terrestrial Relations Observatory - A. The associated coronal mass ejection (CME) was observed by Large Angle and Spectrometric Coronagraph (LASCO) as well by COR1 coronagraph. From the multi-view observation, we fou…

Imagine buying hardware, which runs faster after 4 years than it did when you bought it. Meanwhile, in Windows land, Benchmarks often show that Windows 10 runs faster than Windows 11.
https://www.phoronix.com/review/linux-515-617-performance

One, Two, Three: One empirical evaluation of a two-copy shadow tomography scheme with triple efficiency
Viet T. Tran, Richard Kueng
https://arxiv.org/abs/2508.11744 https://

One, Two, Three: One empirical evaluation of a two-copy shadow tomography scheme with triple efficiency
Shadow tomography protocols have recently emerged as powerful tools for efficient quantum state learning, aiming to reconstruct expectation values of observables with fewer resources than traditional quantum state tomography. For the particular case of estimating Pauli observables, entangling two-copy measurement schemes can offer an exponential improvement in sample complexity over any single-copy strategy conceivable [1, Huang, Kueng, Preskill, PRL(2021)]. A recent refinement of these ideas b…

The role of preprints in open science: Accelerating knowledge transfer from science to technology
Zhiqi Wang, Yue Chen, Chun Yang
https://arxiv.org/abs/2506.20225

The role of preprints in open science: Accelerating knowledge transfer from science to technology
Preprints have become increasingly essential in the landscape of open science, facilitating not only the exchange of knowledge within the scientific community but also bridging the gap between science and technology. However, the impact of preprints on technological innovation, given their unreviewed nature, remains unclear. This study fills this gap by conducting a comprehensive scientometric analysis of patent citations to bioRxiv preprints submitted between 2013 and 2021, measuring and acces…

Strong Lens Discoveries in DESI Legacy Imaging Surveys DR10 with Two Deep Learning Architectures
Jose Carlos Inchausti, Christopher J. Storfer, Xiaosheng Huang, Yuan-Ming Hsu, Brandt Kaufmann, Chaitanya Pasupala, S. Banka, A. Dey, D. Lang, A. Meisner, J. Moustakas, A. D. Myers, E. F. Schlafly, D. J. Schlegel
https://arxiv.org/abs/2508.2008…

Strong Lens Discoveries in DESI Legacy Imaging Surveys DR10 with Two Deep Learning Architectures
We have conducted a search for strong gravitational lensing systems in the Dark Energy Spectroscopic Instrument (DESI) Legacy Imaging Surveys Data Release 10 (DR10). This paper is the fourth in a series of searches (following Huang et al. 2020; Huang et al. 2021; Storfer et al. 2024, Paper I, II, & III respectively). This is the first catalog of lens candidates covering nearly the entirety of the extragalactic sky south of declination $δ\approx +32$ deg, all of it observed by the DECam, coveri…

🇺🇦 #NowPlaying on #BBC6Music's #AmyLamé
Ego Ella May:
🎵 What's Happening Brother (6 Music Session, 22 May 2021)
#EgoEllaMay