Tootfinder

Doeltreffendheid en doelmatigheid, woorden die niet altijd goed worden gebruikt. In dat kader is de handleiding doeltreffendheid en doelmatigheidsonderzoek van de Algemene Rekenkamer een aanrader, weliswaar een specifieke Rekenkamer insteek maar een goede behandeling van genoemde begrippen.

Lockheed Constellation sobre Santiago de Cuba https://archivo.kamasystems.nl/es/2023/07/31/lockheed-constellation-sobre-santiago-de-cuba/

from my link log —
Rewriting the Ruby parser.
https://railsatscale.com/2023-06-12-rewriting-the-ruby-parser/
saved 2024-12-26

Rewriting the Ruby parser
At Shopify, we have spent the last year writing a new Ruby parser, which we’ve called YARP (Yet Another Ruby Parser). As of the date of this post, YARP can parse a semantically equivalent syntax tree to Ruby 3.3 on every Ruby file in Shopify’s main codebase, GitHub’s main codebase, CRuby, and the 100 most popular gems downloaded from rubygems.org. We recently got approval to merge this work into CRuby, and are very excited to share our work with the community. This post will take you thro…

Tencent Music agrees to buy podcasting startup Ximalaya for $1.3B in cash, plus some stock, in a bid to become China's Spotify; Ximalaya had 303M MAUs in 2023 (Bloomberg)
https://www.bloomberg.com/news/articles/20

Tencent Music agrees to buy podcasting startup Ximalaya for $1.3B in cash, plus some stock, in a bid to become China's Spotify; Ximalaya had 303M MAUs in 2023 (Bloomberg)
https://www.bloomberg.com/news/articles/20

New tool lets artists ‘poison’ their artwork to deter AI companies from using it to train their models
https://www.cnbc.com/2023/10/27/new-tool-lets-artists-poison-their-artwork-to-deter-ai-companies.html

This new tool lets artists 'poison' their artwork to deter AI companies from using it to train their models—here’s how it works
If an artist doesn't want their pieces being used to train AI image generators, a new tool called Nightshade would let them "poison" their artwork.

Comprehensive Radio Monitoring of the Black Hole X-ray Binary Swift J1727.8$-$1613 during its 2023$-$2024 Outburst
Andrew K. Hughes, Francesco Carotenuto, Thomas D. Russell, Alexandra J. Tetarenko, James C. A. Miller-Jones, Arash Bahramian, Joe S. Bright, Fraser J. Cowie, Rob Fender, Mark A. Gurwell, Jasvinderjit K. Khaulsay, Anastasia Kirby, Serena Jones, Elodie Lescure, Michael McCollough, Richard M. Plotkin, Ramprasad Rao, Saeqa D. Vrtilek, David R. A. Williams-Baldwin, Callan M. Wo…

Comprehensive Radio Monitoring of the Black Hole X-ray Binary Swift J1727.8$-$1613 during its 2023$-$2024 Outburst
This work presents comprehensive multi-frequency radio monitoring of the black hole low-mass X-ray binary Swift J1727.8$-$1613, which underwent its first recorded outburst after its discovery in August 2023. Through a considerable community effort, we have coalesced the data from multiple, distinct observing programs; the light curves include ${\sim} 10$ months and 197 epochs of monitoring from 7 radio facilities with observing frequencies ranging from (approximately) 0.3$-$230GHz. The primary …

Mark your calendars for our upcoming events this Fall from the Love of Children program. You can read and register for these events at https://yaleyouthministryinstitute.org/upcoming-events/

TikTok's Research API: Problems Without Explanations
Carlos Entrena-Serrano, Martin Degeling, Salvatore Romano, Raziye Buse \c{C}etin
https://arxiv.org/abs/2506.09746

TikTok's Research API: Problems Without Explanations
Following the Digital Services Act of 2023, which requires Very Large Online Platforms (VLOPs) and Very Large Online Search Engines (VLOSEs) to facilitate data accessibility for independent research, TikTok augmented its Research API access within Europe in July 2023. This action was intended to ensure compliance with the DSA, bolster transparency, and address systemic risks. Nonetheless, research findings reveal that despite this expansion, notable limitations and inconsistencies persist withi…

Universal Jailbreak Suffixes Are Strong Attention Hijackers
Matan Ben-Tov, Mor Geva, Mahmood Sharif
https://arxiv.org/abs/2506.12880 https://

Universal Jailbreak Suffixes Are Strong Attention Hijackers
We study suffix-based jailbreaks$\unicode{x2013}$a powerful family of attacks against large language models (LLMs) that optimize adversarial suffixes to circumvent safety alignment. Focusing on the widely used foundational GCG attack (Zou et al., 2023), we observe that suffixes vary in efficacy: some markedly more universal$\unicode{x2013}$generalizing to many unseen harmful instructions$\unicode{x2013}$than others. We first show that GCG's effectiveness is driven by a shallow, critical mechani…

Ravens RB Keaton Mitchell: I feel like I'm better than before 2023 knee injury https://www.nfl.com/news/ravens-rb-keaton-mitchell-i-feel-like-i-m-better-than-before-2023-knee-injury

Advancing Exchange Rate Forecasting: Leveraging Machine Learning and AI for Enhanced Accuracy in Global Financial Markets
Md. Yeasin Rahat, Rajan Das Gupta, Nur Raisa Rahman, Sudipto Roy Pritom, Samiur Rahman Shakir, Md Imrul Hasan Showmick, Md. Jakir Hossen
https://arxiv.org/abs/2506.09851

Advancing Exchange Rate Forecasting: Leveraging Machine Learning and AI for Enhanced Accuracy in Global Financial Markets
The prediction of foreign exchange rates, such as the US Dollar (USD) to Bangladeshi Taka (BDT), plays a pivotal role in global financial markets, influencing trade, investments, and economic stability. This study leverages historical USD/BDT exchange rate data from 2018 to 2023, sourced from Yahoo Finance, to develop advanced machine learning models for accurate forecasting. A Long Short-Term Memory (LSTM) neural network is employed, achieving an exceptional accuracy of 99.449%, a Root Mean Sq…

Amendments to the Montana Consumer Data Privacy Act Bring Big Changes to Big Sky Country
https://fpf.org/blog/amendments-to-the-montana-consumer-data-privacy-act-bring-big-changes-to-big-sky-country/

Could Cowboys trade former 2nd-round pick before rookie deal done? https://cowboyswire.usatoday.com/story/sports/nfl/cowboys/2025/06/15/cowboys-trade-luke-schoonmaker-consideration/84204653007/

On the intervals for the non-existence of covering systems with distinct moduli
Jack Dalton, Nic Jones
https://arxiv.org/abs/2506.11359 https://

On the intervals for the non-existence of covering systems with distinct moduli
In a research seminar in $2006$, M. Filaseta, O. Trifonov, and G. Yu showed for each integer $n\geq3$ there is no distinct covering with all moduli in the interval $[n, 6n]$. In $2022$, this interval was subsequently improved to $[n, 8n]$ by the first author and O. Trifonov. The first author then improved this bound to $[n, 9n]$ in $2023$. Building off their method, we show that for each integer $n\geq 3$, there does not exist a distinct covering system with all moduli in the interval $[n, 10n]…

Density estimation via periodic scaled Korobov kernel method with exponential decay condition
Ziyang Ye, Haoyuan Tan, Xiaoqun Wang, Zhijian He
https://arxiv.org/abs/2506.15419

Density estimation via periodic scaled Korobov kernel method with exponential decay condition
We propose the periodic scaled Korobov kernel (PSKK) method for nonparametric density estimation on $\mathbb{R}^d$. By first wrapping the target density into a periodic version through modulo operation and subsequently applying kernel ridge regression in scaled Korobov spaces, we extend the kernel approach proposed by Kazashi and Nobile (SIAM J. Numer. Anal., 2023) and eliminate its requirement for inherent periodicity of the density function. This key modification enables effective estimation …

DreamState - Awakening
The final release in the DreamState series
- #DreamState #NowPlaying -
https://

DreamState - Awakening - #DreamState #NowPlaying
Stan Stewart - @muz4now

Capability demonstration of a JEDI-based system for TEMPO assimilation: system description and evaluation
Maryam Abdi-Oskouei, J\'er\^ome Barr\'e
https://arxiv.org/abs/2506.07321

Capability demonstration of a JEDI-based system for TEMPO assimilation: system description and evaluation
The launch of the Tropospheric Emissions: Monitoring of Pollution (TEMPO) mission in 2023 marked a new era in air quality monitoring by providing high-frequency, geostationary observations of column NO2 across North America. In this study, we present the first implementation of a TEMPO NO2 data assimilation system using the Joint Effort for Data assimilation Integration (JEDI) framework. Leveraging a four-dimensional ensemble variational (4DEnVar) approach and an Ensemble of Data Assimilations …

Bird of the Day — Ruby-throated Hummingbird, Kansas 2023
#Birds #NaturePhotography #Nature #Wildlife

Photos and partial footage of an FSD-enabled Tesla sideswiping a parked vehicle and hitting a woman in November 2023 shows FSD's limits; the NHTSA is probing it (Bloomberg)
https://www.bloomberg.com/features/2025-tesla-full-self-driving-crash/…

High-resolution Observations of a C9.3 White-light Flare and Its Impact on the Solar Photosphere
Zhe Xu, Xiaoli Yan, Zhentong Li, Liheng Yang, Zhike Xue, Jincheng Wang, Yian Zhou
https://arxiv.org/abs/2506.08411

High-resolution Observations of a C9.3 White-light Flare and Its Impact on the Solar Photosphere
We present a detailed analysis of a C9.3 white-light flare using high-resolution observations from the New Vacuum Solar Telescope (NVST). The flare occurred near the eastern solar limb on September 11, 2023, within NOAA AR 13431, and produced beam electrons with energies just below 50 keV as observed by the the Hard X-ray Imager (HXI) onboard the Advanced Space-based Solar Observatory (ASO-S). Two white-light flare kernels were detected in the TiO band, connected by filamentary brightenings ali…

Skyral, a London-based modeling and simulation startup developing AI-based digital twin tech for defense, healthcare, and other sectors, raised a $20M Series A (Lucy Adams/Tech.eu)
https://tech.eu/2025/06/04/uk-based-sk

UK-based Skyral raises $20M Series A to expand modelling and simulation tech globally
British modelling and simulation startup Skyral has secured $20 million in Series A funding, led by NOIA Capital in partnership with Accrete Capital, as it looks to expand the global reach of its AI-enabled digital twin technology across sectors including defence, national security, healthcare, and infrastructure. Founded in June 2023 and headquartered in the UK, Skyral is developing a next-generation platform that combines digital twin modelling with artificial intelligence to simulate comple…

X-ray Polarization Detection of the Pulsar Wind Nebula in G21.5-0.9 with IXPE
Niccol\`o Di Lalla, Nicola Omodei, Niccol\`o Bucciantini, Jack T. Dinsmore, Nicol\`o Cibrario, Stefano Silvestri, Josephine Wong, Patrick Slane, Tsunefumi Mizuno, Michela Negro, Roger W. Romani, Riccardo Ferrazzoli, Stephen Chi-Yung Ng, Miltiadis Michailidis, Yi-Jung Yang, Fei Xie, Martin C. Weisskopf, Philip Kaaret, Iv\'an Agudo, L. A. Antonelli, Matteo Bachetti, Luca Baldini, Wayne H. Baumgartner, Ronal…

X-ray Polarization Detection of the Pulsar Wind Nebula in G21.5-0.9 with IXPE
We present the X-ray polarization observation of G21.5-0.9, a young Galactic supernova remnant (SNR), conducted with the Imaging X-ray Polarimetry Explorer (IXPE) in October 2023, with a total livetime of approximately 837 ks. Using different analysis methods, such as a space-integrated study of the entire region of the PWN and a space-resolved polarization map, we detect significant polarization from the pulsar wind nebula (PWN) at the center of the SNR, with an average polarization degree of …

Bird of the Day — Black-and-white Warbler, Kansas 2023
#Birds #NaturePhotography #Nature #Wildlife

This https://arxiv.org/abs/2402.01942 has been replaced.
link: https://scholar.google.com/scholar?q=a

Pairwise Rearrangement is Fixed-Parameter Tractable in the Single Cut-and-Join Model
Genome rearrangement is a common model for molecular evolution. In this paper, we consider the Pairwise Rearrangement problem, which takes as input two genomes and asks for the number of minimum-length sequences of permissible operations transforming the first genome into the second. In the Single Cut-and-Join model (Bergeron, Medvedev, & Stoye, J. Comput. Biol. 2010), Pairwise Rearrangement is $\#\textsf{P}$-complete (Bailey, et. al., COCOON 2023), which implies that exact sampling is intracta…