Tootfinder

Japan's Nikkei index crossed the 40,000 threshold for the first time early Monday on robust technology issues following the advance of their U.S. counterparts late last week.
The Nikkei benchmark quickly topped the 40,000 line after the market opening. In the first 15 minutes of trading, the 225-issue #Nikkei #Stock

Nikkei tops 40,000 for 1st time after upbeat Wall St.
Japan's Nikkei index crosses the 40,000-point threshold for the first time on robust technology issues following the advance of their U.S. counterparts late last week.

Kitten breaking change: Route handlers, etc., now take parameter objects
Just pushed the API updates I’d posted about earlier to main and to the latest Kitten release.
This change affects:
- Route handlers (all types of routes)
- `onConnect()` handlers
- The default export on main.script.js files
I’ve updated all the examples, documentation, etc., on Kitten to use the new API but if you see anything I’ve missed, please let me know.

app
A web development kit that’s small, purrs, and loves you.

This https://arxiv.org/abs/2309.12683 has been replaced.
initial toot: https://mastoxiv.page/@a…

Accelerating the laser-induced phase transition in nanostructured FeRh via plasmonic absorption
By ultrafast x-ray diffraction we show that the laser-induced magnetostructural phase transition in FeRh nanoislands proceeds faster and more complete than in continuous films. We observe an intrinsic 8 ps timescale for nucleation of ferromagnetic (FM) domains in both types of samples. For the continuous film, the substrate-near regions, which are not directly exposed to light, are only slowly transformed to the FM state by domain wall motion following heat transport. In contrast, numerical mod…

Bird of the Day — Whooping Crane, Kansas, yesterday
Northbound
#Nature #NaturePhotography #Birds #Wildlife

This https://arxiv.org/abs/2306.16261 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csIR_…

SE-PQA: Personalized Community Question Answering
Personalization in Information Retrieval is a topic studied for a long time. Nevertheless, there is still a lack of high-quality, real-world datasets to conduct large-scale experiments and evaluate models for personalized search. This paper contributes to filling this gap by introducing SE-PQA (StackExchange - Personalized Question Answering), a new curated resource to design and evaluate personalized models related to the task of community Question Answering (cQA). The contributed dataset incl…

Disorder controlled sound speed and thermal conductivity of hybrid metalcone films
Md Shafkat Bin Hoque, Rachel A. Nye, Saman Zare, Stephanie Atkinson, Siyao Wang, Andrew H. Jones, John T. Gaskins, Gregory Parsons, Patrick E. Hopkins
https://arxiv.org/abs/2402.13215

Disorder controlled sound speed and thermal conductivity of hybrid metalcone films
The multifaceted applications of polymers are often limited by their thermal conductivity. Therefore, understanding the mechanisms of thermal transport in polymers is of vital interest. Here, we leverage molecular layer deposition to grow three types of hybrid metalcone (i.e., alucone, zincone, and tincone) films and study their thermal and acoustic properties. The thermal conductivity of the hybrid polymer films ranges from 0.43 to 1.14 W/mK. Using kinetic theory, we trace the origin of therma…

Couler: Unified Machine Learning Workflow Optimization in Cloud
Xiaoda Wang, Yuan Tang, Tengda Guo, Bo Sang, Jingji Wu, Jian Sha, Ke Zhang, Jiang Qian, Mingjie Tang
https://arxiv.org/abs/2403.07608

Couler: Unified Machine Learning Workflow Optimization in Cloud
Machine Learning (ML) has become ubiquitous, fueling data-driven applications across various organizations. Contrary to the traditional perception of ML in research, ML workflows can be complex, resource-intensive, and time-consuming. Expanding an ML workflow to encompass a wider range of data infrastructure and data types may lead to larger workloads and increased deployment costs. Currently, numerous workflow engines are available (with over ten being widely recognized). This variety poses a …

Humanoid Robots at work: where are we ?
Fabrice R. Noreils
https://arxiv.org/abs/2404.04249 https://arxiv.org/pdf/2404.04249

Humanoid Robots at work: where are we ?
Launched by Elon Musk and its Optimus, we are witnessing a new race in which many companies have already engaged. The objective it to put at work a new generation of humanoid robots in demanding industrial environments within 2 or 3 years. Is this objective realistic ? The aim of this document and its main contributions is to provide some hints by covering the following topics: First an analysis of 12 companies based on eight criteria that will help us to distinguish companies based on their ma…

This https://arxiv.org/abs/2306.14862 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_eco…

Marginal Effects for Probit and Tobit with Endogeneity
When evaluating partial effects, it is important to distinguish between structural endogeneity and measurement errors. In contrast to linear models, these two sources of endogeneity affect partial effects differently in nonlinear models. We study this issue focusing on the Instrumental Variable (IV) Probit and Tobit models. We show that even when a valid IV is available, failing to differentiate between the two types of endogeneity can lead to either under- or over-estimation of the partial eff…

Wrinkling instability of 3D auxetic bilayers in tension
Sairam Pamulaparthi Venkata, Yuxin Fu, Yibin Fu, Valentina Balbi, Michel Destrade
https://arxiv.org/abs/2404.12873

Wrinkling instability of 3D auxetic bilayers in tension
Bilayers (soft substrates coated with stiff films) are commonly found in nature with examples including skin tissue, vesicles, or organ membranes. They exhibit various types of instabilities when subjected to compression, depending on the contrast in material properties between the two components. We present wrinkling instabilities for 3D hyperelastic bilayer systems, including auxetics (materials with negative Poisson's ratio), under uni-axial tension. In tension, a soft bilayer can experience…