Tootfinder

Clustering-based aggregate value regression
Kei Hirose, Hidetoshi Matsui, Hiroki Masuda
https://arxiv.org/abs/2508.15567 https://arxiv.org/pdf/2508.15567…

Clustering-based aggregate value regression
In various practical situations, forecasting of aggregate values rather than individual ones is often our main focus. For instance, electricity companies are interested in forecasting the total electricity demand in a specific region to ensure reliable grid operation and resource allocation. However, to our knowledge, statistical learning specifically for forecasting aggregate values has not yet been well-established. In particular, the relationship between forecast error and the number of clus…

Interessanter Beitrag dazu, dass in unserer Welt vieles auf Männer ausgerichtet ist. Diesmal: Fußball
Da Frauen im Schnitt 15 % kleiner sind als Männer u. weniger Muskelmasse haben, müssten Spielfeld und Tor um 15 % verkleinert und die Spielzeit entsprechend verkürzt werden.
Das Experiment wurde tatsächlich gemacht, allerdings anders rum: Alles wurde vergrößert u. verlängert (der Ball wurde zudem schwerer) und dann haben die Männer unter diesen Bedingungen gespielt 🧵

Fast OTSU Thresholding Using Bisection Method
Sai Varun Kodathala
https://arxiv.org/abs/2509.16179 https://arxiv.org/pdf/2509.16179

Fast OTSU Thresholding Using Bisection Method
The Otsu thresholding algorithm represents a fundamental technique in image segmentation, yet its computational efficiency is severely limited by exhaustive search requirements across all possible threshold values. This work presents an optimized implementation that leverages the bisection method to exploit the unimodal characteristics of the between-class variance function. Our approach reduces the computational complexity from O(L) to O(log L) evaluations while preserving segmentation accurac…

heise | macOS 26 Tahoe auszreizen: 20 Tipps für Apples neues System
Der Mac bekommt einen integrierten Clipboard-Manager, Spotlight wird deutlich mächtiger, das Kontrollzentrum lässt sich individualisieren – und vieles mehr.

An Open Dataset for Temperature Modelling in Machine Tools
C. Coelho, D. Fern\'andez, M. Hohmann, L. Penter, S. Ihlenfeldt, O. Niggemann
https://arxiv.org/abs/2509.16222 htt…

An Open Dataset for Temperature Modelling in Machine Tools
This data set descriptor introduces a structured, high-resolution dataset of transient thermal simulations for a vertical axis of a machine tool test rig. The data set includes temperature and heat flux values recorded at 29 probe locations at 1800 time steps, sampled every second over a 30-minute range, across 17 simulation runs derived from a fractional factorial design. First, a computer-aided design model was de-featured, segmented, and optimized, followed by finite element (FE) modelling. …

Do LLMs Align Human Values Regarding Social Biases? Judging and Explaining Social Biases with LLMs
Yang Liu, Chenhui Chu
https://arxiv.org/abs/2509.13869 https://

Do LLMs Align Human Values Regarding Social Biases? Judging and Explaining Social Biases with LLMs
Large language models (LLMs) can lead to undesired consequences when misaligned with human values, especially in scenarios involving complex and sensitive social biases. Previous studies have revealed the misalignment of LLMs with human values using expert-designed or agent-based emulated bias scenarios. However, it remains unclear whether the alignment of LLMs with human values differs across different types of scenarios (e.g., scenarios containing negative vs. non-negative questions). In this…

Exploring the relation between mathematical values and achievement among girls: A comparative analysis in single-sex vs. coeducational settings using TIMSS 2019 NZ data
Huayu Gao, Tanya Evans, Gavin T. L. Brown
https://arxiv.org/abs/2508.13528

Exploring the relation between mathematical values and achievement among girls: A comparative analysis in single-sex vs. coeducational settings using TIMSS 2019 NZ data
Grounded in the social cognitive career theory, this study investigates the influence of values on girls' mathematics achievement across socio-economic status (SES) settings, contrasting single-sex and coeducational schools. An analysis of variance (ANOVA) on 2019 TIMSS New Zealand data (N = 2,898) revealed that single-sex education was associated with enhanced girls' mathematical values in high-SES settings. However, its effect on translating these values into improved mathematics performance …

Building Earth with pebbles made of chondritic components
Susmita Garai, Peter L. Olson, Zachary D. Sharp
https://arxiv.org/abs/2507.16057 https://

Building Earth with pebbles made of chondritic components
Pebble accretion provides new insights into Earth's building blocks and early protoplanetary disk conditions. Here, we show that mixtures of chondritic components: metal grains, chondrules, calcium-aluminum-rich inclusions (CAIs), and amoeboid olivine aggregates (AOAs) match Earth's major element composition (Fe, Ni, Si, Mg, Ca, Al, O) within uncertainties, whereas no combination of chondrites and iron meteorites does. Our best fits also match the $ε^{54}$Cr and $ε^{50}$Ti values of Earth pre…

Discrete Optimization of Min-Max Violation and its Applications Across Computational Sciences
Cheikh Ahmed, Mahdi Mostajabdaveh, Samin Aref, Zirui Zhou
https://arxiv.org/abs/2508.13437

Discrete Optimization of Min-Max Violation and its Applications Across Computational Sciences
We introduce the Discrete Min-Max Violation (DMMV) as a general optimization problem which seeks an assignment of discrete values to variables that minimizes the largest constraint violation. This context-free mathematical formulation is applicable to a wide range of use cases that have worst-case performance requirements. After defining the DMMV problem mathematically, we explore its properties to establish a foundational understanding. To tackle DMMV instance sizes of practical relevance, we …

Accenture plans to acquire Australian cybersecurity company CyberCX from private equity firm BGH Capital; the deal reportedly values CyberCX at more than AU$1B (Mark Anderson/Bloomberg Law)
https://news.bloomberglaw.com/tech-and-tel…

Accenture Acquires Australian Cybersecurity Firm CyberCX
Accenture Plc is buying Australian cybersecurity firm CyberCX, its largest acquisition to date in the sector that will boost operations in the Asia-Pacific region.