Tootfinder

Data distribution impacts the performance and generalisability of contrastive learning-based foundation models of electrocardiograms
Gul Rukh Khattak, Konstantinos Patlatzoglou, Joseph Barker, Libor Pastika, Boroumand Zeidaabadi, Ahmed El-Medany, Hesham Aggour, Yixiu Liang, Antonio H. Ribeiro, Jeffrey Annis, Antonio Luiz Pinho Ribeiro, Junbo Ge, Daniel B. Kramer, Jonathan W. Waks, Evan Brittain, Nicholas Peters, Fu Siong Ng, Arunashis Sau

Data distribution impacts the performance and generalisability of contrastive learning-based foundation models of electrocardiograms
Contrastive learning is a widely adopted self-supervised pretraining strategy, yet its dependence on cohort composition remains underexplored. We present Contrasting by Patient Augmented Electrocardiograms (CAPE) foundation model and pretrain on four cohorts (n = 5,203,352), from diverse populations across three continents (North America, South America, Asia). We systematically assess how cohort demographics, health status, and population diversity influence the downstream performance for predi…

🇺🇦 #NowPlaying on BBCRadio3's #Breakfast
Joseph Bologne, Chevalier de Saint-Georges, Yury Revich, Libor Ježek, Czech Chamber Philharmonic Orchestra Pardubice & Michael Halšsz:
🎵 Symphonie concertante in A major Op.9`2 (2nd mvt)
https://open.spotify.com/track/0vxDqjHHacetJeaI9rmYFu

Quantization of spin circular photogalvanic effect in altermagnetic Weyl semimetals
Hiroki Yoshida, Jan Priessnitz, Libor \v{S}mejkal, Shuichi Murakami
https://arxiv.org/abs/2509.05620

Quantization of spin circular photogalvanic effect in altermagnetic Weyl semimetals
We theoretically predict a spin-current analog of the quantized circular photogalvanic effect in Weyl semimetals. This phenomenon is forbidden in antiferromagnets by symmetry but uniquely allowed in altermagnets, highlighting a novel and intrinsic characteristic of altermagnetism. To systematically explore second-order spin current responses, we classify all symmetry-allowed responses based on spin point groups. Furthermore, we provide a comprehensive classification of altermagnetic Weyl semime…

Symmetry, microscopy and spectroscopy signatures of altermagnetism
Tomas Jungwirth, Jairo Sinova, Rafael M. Fernandes, Qihang Liu, Hikaru Watanabe, Shuichi Murakami, Satoru Nakatsuji, Libor Smejkal
https://arxiv.org/abs/2506.22860

Symmetry, microscopy and spectroscopy signatures of altermagnetism
Altermagnetism is a collinear compensated magnetically-ordered phase with a d, g or i-wave anisotropy and alternating spin polarization of the electronic structure in the position and momentum space. Its recent discovery was in part motivated by the research of compensated magnets towards highly scalable spintronic technologies. Simultaneously, altermagnetism shares the anisotropic higher-partial-wave nature of ordering with unconventional superfluid phases which have been at the forefront of r…

Developers Insight On Manifest v3 Privacy and Security Webextensions
Libor Pol\v{c}\'ak, Giorgio Maone, Michael McMahon, Martin Bedn\'a\v{r}
https://arxiv.org/abs/2507.13926

Developers Insight On Manifest v3 Privacy and Security Webextensions
Webextensions can improve web browser privacy, security, and user experience. The APIs offered by the browser to webextensions affect possible functionality. Currently, Chrome transitions to a modified set of APIs called Manifest v3. This paper studies the challenges and opportunities of Manifest v3 with an in-depth structured qualitative research. Even though some projects observed positive effects, a majority expresses concerns over limited benefits to users, removal of crucial APIs, or the n…

A Case for AXI
Viktor Tsyrennikov
https://arxiv.org/abs/2509.03035 https://arxiv.org/pdf/2509.03035

A Case for AXI
In the LIBOR era, banks routinely tied revolving credit facilities to credit-sensitive benchmarks. This study assesses the Across-the-Curve Credit Spread Index (AXI) -- a transparent, transaction-based measure of wholesale bank funding costs -- as a complement to SOFR, summarizing its behavior, construction, and loan-pricing implications. AXI aggregates observable unsecured funding transactions across short- and long-term maturities to produce a daily credit spread that is IOSCO-aligned and ope…

The non-contact assessment of the bridge expansion joint
Pavel Ryj\'a\v{c}ek, Kirill Golubiatnikov, Ond\v{r}ej Simon, Libor L\'ady\v{s}, Martin L\'ady\v{s}, Ond\v{r}ej \v{C}ervenka, Petr Kloko\v{c}n\'ik
https://arxiv.org/abs/2508.17109

The non-contact assessment of the bridge expansion joint
The aim of the paper is to provide information on a newly developed design methodology for the evaluation of bridge expansion joints with respect to their noise emission and overall technical condition. The methodology also gives recommendations for operational non-destructive measurements of the condition of bridge gates using a crossing laser sensors, CPX sensors or the necessary technical equipment and the method of collecting, processing and evaluating the measured data. The method can easi…

🇺🇦 #NowPlaying on BBCRadio3's #Breakfast
Charles Gounod, Royal Liverpool Philharmonic Orchestra & Libor Pešek:
🎵 Mors et Vita (Judex)
#CharlesGounod #RoyalLiverpoolPhilharmonicOrchestra #LiborPešek

🇺🇦 #NowPlaying on BBCRadio3's #InTune
Charles Gounod, Royal Liverpool Philharmonic Orchestra & Libor Pešek:
🎵 Mors et Vita (Judex)
#CharlesGounod #RoyalLiverpoolPhilharmonicOrchestra #LiborPešek

🇺🇦 #NowPlaying on BBCRadio3's #Breakfast
Charles Gounod, Royal Liverpool Philharmonic Orchestra & Libor Pešek:
🎵 Mors et Vita (Judex)
#CharlesGounod #RoyalLiverpoolPhilharmonicOrchestra #LiborPešek