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@arXiv_csCV_bot@mastoxiv.page
2025-12-12 14:07:57

Replaced article(s) found for cs.CV. arxiv.org/list/cs.CV/new
[5/5]:
- Object-centric proto-symbolic behavioural reasoning from pixels
Ruben van Bergen, Justus H\"ubotter, Alma Lago, Pablo Lanillos

@aardrian@toot.cafe
2025-12-10 17:55:39

If you are watching CART via Otter•ai and need the scrollbars at all (to scroll, to see where you are in the page, etc), then you can fix the WCAG SC 1.4.11 and 2.5.5 failures by adding this CSS to the page:
```
.otter-scrollbar {
scrollbar-width: unset;
scrollbar-color: unset;
}
```

@arXiv_csCV_bot@mastoxiv.page
2025-12-12 14:07:46

Replaced article(s) found for cs.CV. arxiv.org/list/cs.CV/new
[4/5]:
- Fairness-Aware Fine-Tuning of Vision-Language Models for Medical Glaucoma Diagnosis
Zijian Gu, Yuxi Liu, Zhenhao Zhang, Song Wang

@adrianco@mastodon.social
2025-12-08 17:32:56

#AdventOfSystemSeeing Day 5, still trying to catch up with @…

Did California lose Larry Page?
The Google and Alphabet cofounder, who left day-to-day operations in 2019,
has seen his net worth soar in the years since
—from around $50 billion at the time of his departure to somewhere approximating $260 billion today.
(Leaving his job clearly didn’t hurt his wallet.)
Last year, a proposed ballot initiative in California threatened billionaires like Page with a one-time 5 percent wealth tax
—prompting some of them to con…

@arXiv_csCV_bot@mastoxiv.page
2025-12-12 14:07:36

Replaced article(s) found for cs.CV. arxiv.org/list/cs.CV/new
[3/5]:
- Unsupervised Learning for Industrial Defect Detection: A Case Study on Shearographic Data
Jessica Plassmann, Nicolas Schuler, Georg von Freymann, Michael Schuth

@arXiv_csDS_bot@mastoxiv.page
2026-02-10 10:58:06

Approximate Cartesian Tree Matching with Substitutions
Panagiotis Charalampopoulos, Jonas Ellert, Manal Mohamed
arxiv.org/abs/2602.08570 arxiv.org/pdf/2602.08570 arxiv.org/html/2602.08570
arXiv:2602.08570v1 Announce Type: new
Abstract: The Cartesian tree of a sequence captures the relative order of the sequence's elements. In recent years, Cartesian tree matching has attracted considerable attention, particularly due to its applications in time series analysis. Consider a text $T$ of length $n$ and a pattern $P$ of length $m$. In the exact Cartesian tree matching problem, the task is to find all length-$m$ fragments of $T$ whose Cartesian tree coincides with the Cartesian tree $CT(P)$ of the pattern. Although the exact version of the problem can be solved in linear time [Park et al., TCS 2020], it remains rather restrictive; for example, it is not robust to outliers in the pattern.
To overcome this limitation, we consider the approximate setting, where the goal is to identify all fragments of $T$ that are close to some string whose Cartesian tree matches $CT(P)$. In this work, we quantify closeness via the widely used Hamming distance metric. For a given integer parameter $k>0$, we present an algorithm that computes all fragments of $T$ that are at Hamming distance at most $k$ from a string whose Cartesian tree matches $CT(P)$. Our algorithm runs in time $\mathcal O(n \sqrt{m} \cdot k^{2.5})$ for $k \leq m^{1/5}$ and in time $\mathcal O(nk^5)$ for $k \geq m^{1/5}$, thereby improving upon the state-of-the-art $\mathcal O(nmk)$-time algorithm of Kim and Han [TCS 2025] in the regime $k = o(m^{1/4})$.
On the way to our solution, we develop a toolbox of independent interest. First, we introduce a new notion of periodicity in Cartesian trees. Then, we lift multiple well-known combinatorial and algorithmic results for string matching and periodicity in strings to Cartesian tree matching and periodicity in Cartesian trees.
toXiv_bot_toot

@arXiv_qbioNC_bot@mastoxiv.page
2025-12-11 08:29:01

NeuroSketch: An Effective Framework for Neural Decoding via Systematic Architectural Optimization
Gaorui Zhang, Zhizhang Yuan, Jialan Yang, Junru Chen, Li Meng, Yang Yang
arxiv.org/abs/2512.09524 arxiv.org/pdf/2512.09524 arxiv.org/html/2512.09524
arXiv:2512.09524v1 Announce Type: new
Abstract: Neural decoding, a critical component of Brain-Computer Interface (BCI), has recently attracted increasing research interest. Previous research has focused on leveraging signal processing and deep learning methods to enhance neural decoding performance. However, the in-depth exploration of model architectures remains underexplored, despite its proven effectiveness in other tasks such as energy forecasting and image classification. In this study, we propose NeuroSketch, an effective framework for neural decoding via systematic architecture optimization. Starting with the basic architecture study, we find that CNN-2D outperforms other architectures in neural decoding tasks and explore its effectiveness from temporal and spatial perspectives. Building on this, we optimize the architecture from macro- to micro-level, achieving improvements in performance at each step. The exploration process and model validations take over 5,000 experiments spanning three distinct modalities (visual, auditory, and speech), three types of brain signals (EEG, SEEG, and ECoG), and eight diverse decoding tasks. Experimental results indicate that NeuroSketch achieves state-of-the-art (SOTA) performance across all evaluated datasets, positioning it as a powerful tool for neural decoding. Our code and scripts are available at github.com/Galaxy-Dawn/NeuroSk.
toXiv_bot_toot

@arXiv_csCV_bot@mastoxiv.page
2025-12-12 14:07:26

Replaced article(s) found for cs.CV. arxiv.org/list/cs.CV/new
[2/5]:
- ExAct: A Video-Language Benchmark for Expert Action Analysis
Han Yi, Yulu Pan, Feihong He, Xinyu Liu, Benjamin Zhang, Oluwatumininu Oguntola, Gedas Bertasius

@@arXiv_physicsatomph_bot@mastoxiv.page@mastoxiv.page
2025-12-10 08:47:11

Atomic and molecular systems for radiation thermometry
Stephen P. Eckel, Eric B. Norrgard, Christopher Holloway, Nikunjkumar Prajapati, Noah Schlossberger, Matthew Simons
arxiv.org/abs/2512.08668 arxiv.org/pdf/2512.08668 arxiv.org/html/2512.08668
arXiv:2512.08668v1 Announce Type: new
Abstract: Atoms and simple molecules are excellent candidates for new standards and sensors because they are both all identical and their properties are determined by the immutable laws of quantum physics. Here, we introduce the concept of building a standard and sensor of radiative temperature using atoms and molecules. Such standards are based on precise measurement of the rate at which blackbody radiation (BBR) either excites or stimulates emission for a given atomic transition. We summarize the recent results of two experiments while detailing the rate equation models required for their interpretation. The cold atom thermometer (CAT) uses a gas of laser cooled $^{85}$Rb Rydberg atoms to probe the BBR spectrum near 130~GHz. This primary, {\it i.e.}, not traceable to a measurement of like kind, temperature measurement currently has a total uncertainty of approximately 1~\%, with clear paths toward improvement. The compact blackbody radiation atomic sensor (CoBRAS) uses a vapour of $^{85}$Rb and monitors fluorescence from states that are either populated by BBR or populated by spontaneous emission to measure the blackbody spectrum near 24.5~THz. The CoBRAS has an excellent relative precision of $u(T)\approx 0.13$~K, with a clear path toward implementing a primary
toXiv_bot_toot

@arXiv_csLG_bot@mastoxiv.page
2025-12-22 13:54:35

Replaced article(s) found for cs.LG. arxiv.org/list/cs.LG/new
[2/5]:
- The Diffusion Duality
Sahoo, Deschenaux, Gokaslan, Wang, Chiu, Kuleshov
arxiv.org/abs/2506.10892 mastoxiv.page/@arXiv_csLG_bot/
- Multimodal Representation Learning and Fusion
Jin, Ge, Xie, Luo, Song, Bi, Liang, Guan, Yeong, Song, Hao
arxiv.org/abs/2506.20494 mastoxiv.page/@arXiv_csLG_bot/
- The kernel of graph indices for vector search
Mariano Tepper, Ted Willke
arxiv.org/abs/2506.20584 mastoxiv.page/@arXiv_csLG_bot/
- OptScale: Probabilistic Optimality for Inference-time Scaling
Youkang Wang, Jian Wang, Rubing Chen, Xiao-Yong Wei
arxiv.org/abs/2506.22376 mastoxiv.page/@arXiv_csLG_bot/
- Boosting Revisited: Benchmarking and Advancing LP-Based Ensemble Methods
Fabian Akkerman, Julien Ferry, Christian Artigues, Emmanuel Hebrard, Thibaut Vidal
arxiv.org/abs/2507.18242 mastoxiv.page/@arXiv_csLG_bot/
- MolMark: Safeguarding Molecular Structures through Learnable Atom-Level Watermarking
Runwen Hu, Peilin Chen, Keyan Ding, Shiqi Wang
arxiv.org/abs/2508.17702 mastoxiv.page/@arXiv_csLG_bot/
- Dual-Distilled Heterogeneous Federated Learning with Adaptive Margins for Trainable Global Protot...
Fatema Siddika, Md Anwar Hossen, Wensheng Zhang, Anuj Sharma, Juan Pablo Mu\~noz, Ali Jannesari
arxiv.org/abs/2508.19009 mastoxiv.page/@arXiv_csLG_bot/
- STDiff: A State Transition Diffusion Framework for Time Series Imputation in Industrial Systems
Gary Simethy, Daniel Ortiz-Arroyo, Petar Durdevic
arxiv.org/abs/2508.19011 mastoxiv.page/@arXiv_csLG_bot/
- EEGDM: Learning EEG Representation with Latent Diffusion Model
Shaocong Wang, Tong Liu, Yihan Li, Ming Li, Kairui Wen, Pei Yang, Wenqi Ji, Minjing Yu, Yong-Jin Liu
arxiv.org/abs/2508.20705 mastoxiv.page/@arXiv_csLG_bot/
- Data-Free Continual Learning of Server Models in Model-Heterogeneous Cloud-Device Collaboration
Xiao Zhang, Zengzhe Chen, Yuan Yuan, Yifei Zou, Fuzhen Zhuang, Wenyu Jiao, Yuke Wang, Dongxiao Yu
arxiv.org/abs/2509.25977 mastoxiv.page/@arXiv_csLG_bot/
- Fine-Tuning Masked Diffusion for Provable Self-Correction
Jaeyeon Kim, Seunggeun Kim, Taekyun Lee, David Z. Pan, Hyeji Kim, Sham Kakade, Sitan Chen
arxiv.org/abs/2510.01384 mastoxiv.page/@arXiv_csLG_bot/
- A Generic Machine Learning Framework for Radio Frequency Fingerprinting
Alex Hiles, Bashar I. Ahmad
arxiv.org/abs/2510.09775 mastoxiv.page/@arXiv_csLG_bot/
- ASecond-Order SpikingSSM for Wearables
Kartikay Agrawal, Abhijeet Vikram, Vedant Sharma, Vaishnavi Nagabhushana, Ayon Borthakur
arxiv.org/abs/2510.14386 mastoxiv.page/@arXiv_csLG_bot/
- Utility-Diversity Aware Online Batch Selection for LLM Supervised Fine-tuning
Heming Zou, Yixiu Mao, Yun Qu, Qi Wang, Xiangyang Ji
arxiv.org/abs/2510.16882 mastoxiv.page/@arXiv_csLG_bot/
- Seeing Structural Failure Before it Happens: An Image-Based Physics-Informed Neural Network (PINN...
Omer Jauhar Khan, Sudais Khan, Hafeez Anwar, Shahzeb Khan, Shams Ul Arifeen
arxiv.org/abs/2510.23117 mastoxiv.page/@arXiv_csLG_bot/
- Training Deep Physics-Informed Kolmogorov-Arnold Networks
Spyros Rigas, Fotios Anagnostopoulos, Michalis Papachristou, Georgios Alexandridis
arxiv.org/abs/2510.23501 mastoxiv.page/@arXiv_csLG_bot/
- Semi-Supervised Preference Optimization with Limited Feedback
Seonggyun Lee, Sungjun Lim, Seojin Park, Soeun Cheon, Kyungwoo Song
arxiv.org/abs/2511.00040 mastoxiv.page/@arXiv_csLG_bot/
- Towards Causal Market Simulators
Dennis Thumm, Luis Ontaneda Mijares
arxiv.org/abs/2511.04469 mastoxiv.page/@arXiv_csLG_bot/
- Incremental Generation is Necessary and Sufficient for Universality in Flow-Based Modelling
Hossein Rouhvarzi, Anastasis Kratsios
arxiv.org/abs/2511.09902 mastoxiv.page/@arXiv_csLG_bot/
- Optimizing Mixture of Block Attention
Guangxuan Xiao, Junxian Guo, Kasra Mazaheri, Song Han
arxiv.org/abs/2511.11571 mastoxiv.page/@arXiv_csLG_bot/
- Assessing Automated Fact-Checking for Medical LLM Responses with Knowledge Graphs
Shasha Zhou, Mingyu Huang, Jack Cole, Charles Britton, Ming Yin, Jan Wolber, Ke Li
arxiv.org/abs/2511.12817 mastoxiv.page/@arXiv_csLG_bot/
toXiv_bot_toot

@arXiv_csCV_bot@mastoxiv.page
2025-12-12 14:07:15

Replaced article(s) found for cs.CV. arxiv.org/list/cs.CV/new
[1/5]:
- Dual Cluster Contrastive learning for Object Re-Identification
Hantao Yao, Changsheng Xu

@arXiv_csGT_bot@mastoxiv.page
2025-12-10 07:33:31

[2025-12-10 Wed (UTC), 5 new articles found for cs.GT Computer Science and Game Theory]
toXiv_bot_toot

@Techmeme@techhub.social
2025-12-27 11:41:16

Sources: Peter Thiel and Larry Page may leave CA over a proposed ballot measure, opposed by Newsom, that levies a one-time 5% tax on those with $1B in assets (New York Times)
nytimes.com/2025/12/26/tec…

@arXiv_physicsinsdet_bot@mastoxiv.page
2026-02-09 08:25:58

CAGE: An Internal Source Scanning Cryostat for HPGe Characterization
G. Othman, C. Wiseman, T. H. Burritt, J. A. Detwiler, M. P. Held, R. Henning, T. Mathew, D. Peterson, W. Pettus, G. Song, T. D. Van Wechel
arxiv.org/abs/2602.06289 arxiv.org/pdf/2602.06289 arxiv.org/html/2602.06289
arXiv:2602.06289v1 Announce Type: new
Abstract: The success of current and future-generation neutrinoless double beta decay experiments relies on the ability to eliminate or reduce extraneous backgrounds. In addition to constructing experiments using radiopure materials and handling in underground laboratories, it is necessary to understand and reduce known backgrounds in data analysis. The Large Enriched Germanium Experiment for Neutrinoless double beta Decay is searching for this decay using 76Ge-enriched high-purity germanium detectors submerged in an active liquid argon veto. A significant background in LEGEND is surface events from shallowly-impinging radiation on detector surfaces. In this paper we introduce the Collimated Alphas, Gammas, and Electrons (CAGE) scanning system, an internal-source scanning vacuum cryostat, designed to perform studies of surface events on sensitive surfaces of HPGe in a surface-lab. CAGE features a collimated radionuclide source inside a movable infrared shield that is able to perform precision scans of detector surfaces by utilizing three independent motor stages for source positioning. This allows detailed studies of pulse shapes as a function of source position and incident angle, where defining features can be extracted and exploited for removing surface backgrounds in data analysis in LEGEND. In this paper, we describe CAGE and demonstrate its performance with a commissioning run with 241Am. The commissioning run was completed with the source at normal incidence, and we estimate a beam spot precision of 3.1 mm, which includes positioning uncertainties and the beam-spot size. Using the 59.5 keV gamma population from 241Am, we show that low-energy photon events near the passivated surface feature risetimes that increase with radial distance from the detector center. We suggest a specific metric that can be used to discriminate low-energy gamma backgrounds in LEGEND with similar characteristics.
toXiv_bot_toot

@arXiv_csDS_bot@mastoxiv.page
2026-02-10 09:00:08

Online Algorithm for Fractional Matchings with Edge Arrivals in Graphs of Maximum Degree Three
Kanstantsin Pashkovich, Thomas Snow
arxiv.org/abs/2602.07355 arxiv.org/pdf/2602.07355 arxiv.org/html/2602.07355
arXiv:2602.07355v1 Announce Type: new
Abstract: We study online algorithms for maximum cardinality matchings with edge arrivals in graphs of low degree. Buchbinder, Segev, and Tkach showed that no online algorithm for maximum cardinality fractional matchings can achieve a competitive ratio larger than $4/(9-\sqrt 5)\approx 0.5914$ even for graphs of maximum degree three. The negative result of Buchbinder et al. holds even when the graph is bipartite and edges are revealed according to vertex arrivals, i.e. once a vertex arrives, all edges are revealed that include the newly arrived vertex and one of the previously arrived vertices. In this work, we complement the negative result of Buchbinder et al. by providing an online algorithm for maximum cardinality fractional matchings with a competitive ratio at least $4/(9-\sqrt 5)\approx 0.5914$ for graphs of maximum degree three. We also demonstrate that no online algorithm for maximum cardinality integral matchings can have the competitive guarantee $0.5807$, establishing a gap between integral and fractional matchings for graphs of maximum degree three. Note that the work of Buchbinder et al. shows that for graphs of maximum degree two, there is no such gap between fractional and integral matchings, because for both of them the best achievable competitive ratio is $2/3$. Also, our results demonstrate that for graphs of maximum degree three best possible competitive ratios for fractional matchings are the same in the vertex arrival and in the edge arrival models.
toXiv_bot_toot

@arXiv_csLG_bot@mastoxiv.page
2025-12-22 13:54:55

Replaced article(s) found for cs.LG. arxiv.org/list/cs.LG/new
[4/5]:
- Sample, Don't Search: Rethinking Test-Time Alignment for Language Models
Gon\c{c}alo Faria, Noah A. Smith
arxiv.org/abs/2504.03790 mastoxiv.page/@arXiv_csCL_bot/
- A Survey on Archetypal Analysis
Aleix Alcacer, Irene Epifanio, Sebastian Mair, Morten M{\o}rup
arxiv.org/abs/2504.12392 mastoxiv.page/@arXiv_statME_bo
- The Stochastic Occupation Kernel (SOCK) Method for Learning Stochastic Differential Equations
Michael L. Wells, Kamel Lahouel, Bruno Jedynak
arxiv.org/abs/2505.11622 mastoxiv.page/@arXiv_statML_bo
- BOLT: Block-Orthonormal Lanczos for Trace estimation of matrix functions
Kingsley Yeon, Promit Ghosal, Mihai Anitescu
arxiv.org/abs/2505.12289 mastoxiv.page/@arXiv_mathNA_bo
- Clustering and Pruning in Causal Data Fusion
Otto Tabell, Santtu Tikka, Juha Karvanen
arxiv.org/abs/2505.15215 mastoxiv.page/@arXiv_statML_bo
- On the performance of multi-fidelity and reduced-dimensional neural emulators for inference of ph...
Chloe H. Choi, Andrea Zanoni, Daniele E. Schiavazzi, Alison L. Marsden
arxiv.org/abs/2506.11683 mastoxiv.page/@arXiv_statML_bo
- Beyond Force Metrics: Pre-Training MLFFs for Stable MD Simulations
Maheshwari, Tang, Ock, Kolluru, Farimani, Kitchin
arxiv.org/abs/2506.14850 mastoxiv.page/@arXiv_physicsch
- Quantifying Uncertainty in the Presence of Distribution Shifts
Yuli Slavutsky, David M. Blei
arxiv.org/abs/2506.18283 mastoxiv.page/@arXiv_statML_bo
- ZKPROV: A Zero-Knowledge Approach to Dataset Provenance for Large Language Models
Mina Namazi, Alexander Nemecek, Erman Ayday
arxiv.org/abs/2506.20915 mastoxiv.page/@arXiv_csCR_bot/
- SpecCLIP: Aligning and Translating Spectroscopic Measurements for Stars
Zhao, Huang, Xue, Kong, Liu, Tang, Beers, Ting, Luo
arxiv.org/abs/2507.01939 mastoxiv.page/@arXiv_astrophIM
- Towards Facilitated Fairness Assessment of AI-based Skin Lesion Classifiers Through GenAI-based I...
Ko Watanabe, Stanislav Frolov, Aya Hassan, David Dembinsky, Adriano Lucieri, Andreas Dengel
arxiv.org/abs/2507.17860 mastoxiv.page/@arXiv_csCV_bot/
- PASS: Probabilistic Agentic Supernet Sampling for Interpretable and Adaptive Chest X-Ray Reasoning
Yushi Feng, Junye Du, Yingying Hong, Qifan Wang, Lequan Yu
arxiv.org/abs/2508.10501 mastoxiv.page/@arXiv_csAI_bot/
- Unified Acoustic Representations for Screening Neurological and Respiratory Pathologies from Voice
Ran Piao, Yuan Lu, Hareld Kemps, Tong Xia, Aaqib Saeed
arxiv.org/abs/2508.20717 mastoxiv.page/@arXiv_csSD_bot/
- Machine Learning-Driven Predictive Resource Management in Complex Science Workflows
Tasnuva Chowdhury, et al.
arxiv.org/abs/2509.11512 mastoxiv.page/@arXiv_csDC_bot/
- MatchFixAgent: Language-Agnostic Autonomous Repository-Level Code Translation Validation and Repair
Ali Reza Ibrahimzada, Brandon Paulsen, Reyhaneh Jabbarvand, Joey Dodds, Daniel Kroening
arxiv.org/abs/2509.16187 mastoxiv.page/@arXiv_csSE_bot/
- Automated Machine Learning Pipeline: Large Language Models-Assisted Automated Dataset Generation ...
Adam Lahouari, Jutta Rogal, Mark E. Tuckerman
arxiv.org/abs/2509.21647 mastoxiv.page/@arXiv_condmatmt
- Quantifying the Impact of Structured Output Format on Large Language Models through Causal Inference
Han Yuan, Yue Zhao, Li Zhang, Wuqiong Luo, Zheng Ma
arxiv.org/abs/2509.21791 mastoxiv.page/@arXiv_csCL_bot/
- The Generation Phases of Flow Matching: a Denoising Perspective
Anne Gagneux, S\'egol\`ene Martin, R\'emi Gribonval, Mathurin Massias
arxiv.org/abs/2510.24830 mastoxiv.page/@arXiv_csCV_bot/
- Data-driven uncertainty-aware seakeeping prediction of the Delft 372 catamaran using ensemble Han...
Giorgio Palma, Andrea Serani, Matteo Diez
arxiv.org/abs/2511.04461 mastoxiv.page/@arXiv_eessSY_bo
- Generalized infinite dimensional Alpha-Procrustes based geometries
Salvish Goomanee, Andi Han, Pratik Jawanpuria, Bamdev Mishra
arxiv.org/abs/2511.09801 mastoxiv.page/@arXiv_statML_bo
toXiv_bot_toot

@rmdes@mstdn.social
2026-02-05 16:52:57

My Roadmap page is taking shape rmendes.net/roadmap/
rmendes.net/content/notes/2026

@@arXiv_physicsatomph_bot@mastoxiv.page@mastoxiv.page
2025-12-09 08:58:57

Optical clocks with accuracy validated at the 19th digit
K. J. Arnold, M. D. K. Lee, Zhao Qi, Qichen Qin, Zhang Zhao, N. Jayjong, M. D. Barrett
arxiv.org/abs/2512.07346 arxiv.org/pdf/2512.07346 arxiv.org/html/2512.07346
arXiv:2512.07346v1 Announce Type: new
Abstract: We report a comprehensive evaluation of all known sources of systematic uncertainty for two independent $^{176}$Lu$^ $ single-ion optical references, finding total systematic uncertainty of $1.1\times10^{-19}$ and $1.4\times10^{-19}$ for the two individual systems and $9.6\times10^{-20}$ for the difference. Through direct comparison via correlation spectroscopy, we demonstrate a relative frequency agreement of $-2.4\pm(5.7)_\mathrm{stat}\pm(1.0)_\mathrm{sys}\times10^{-19}$, where `stat' and `sys' indicate the statistical and systematic uncertainty, respectively. The comparison uncertainty is statistically limited after approximately 200 hours of averaging with a measurement instability of $4.8\times10^{-16}(\tau/\mathrm{s})^{-1/2}$.
toXiv_bot_toot

@arXiv_csLG_bot@mastoxiv.page
2025-12-22 13:54:45

Replaced article(s) found for cs.LG. arxiv.org/list/cs.LG/new
[3/5]:
- Look-Ahead Reasoning on Learning Platforms
Haiqing Zhu, Tijana Zrnic, Celestine Mendler-D\"unner
arxiv.org/abs/2511.14745 mastoxiv.page/@arXiv_csLG_bot/
- Deep Gaussian Process Proximal Policy Optimization
Matthijs van der Lende, Juan Cardenas-Cartagena
arxiv.org/abs/2511.18214 mastoxiv.page/@arXiv_csLG_bot/
- Spectral Concentration at the Edge of Stability: Information Geometry of Kernel Associative Memory
Akira Tamamori
arxiv.org/abs/2511.23083 mastoxiv.page/@arXiv_csLG_bot/
- xGR: Efficient Generative Recommendation Serving at Scale
Sun, Liu, Zhang, Wu, Yang, Liang, Li, Ma, Liang, Ren, Zhang, Liu, Zhang, Qian, Yang
arxiv.org/abs/2512.11529 mastoxiv.page/@arXiv_csLG_bot/
- Credit Risk Estimation with Non-Financial Features: Evidence from a Synthetic Istanbul Dataset
Atalay Denknalbant, Emre Sezdi, Zeki Furkan Kutlu, Polat Goktas
arxiv.org/abs/2512.12783 mastoxiv.page/@arXiv_csLG_bot/
- The Semantic Illusion: Certified Limits of Embedding-Based Hallucination Detection in RAG Systems
Debu Sinha
arxiv.org/abs/2512.15068 mastoxiv.page/@arXiv_csLG_bot/
- Towards Reproducibility in Predictive Process Mining: SPICE -- A Deep Learning Library
Stritzel, H\"uhnerbein, Rauch, Zarate, Fleischmann, Buck, Lischka, Frey
arxiv.org/abs/2512.16715 mastoxiv.page/@arXiv_csLG_bot/
- Differentially private Bayesian tests
Abhisek Chakraborty, Saptati Datta
arxiv.org/abs/2401.15502 mastoxiv.page/@arXiv_statML_bo
- SCAFFLSA: Taming Heterogeneity in Federated Linear Stochastic Approximation and TD Learning
Paul Mangold, Sergey Samsonov, Safwan Labbi, Ilya Levin, Reda Alami, Alexey Naumov, Eric Moulines
arxiv.org/abs/2402.04114
- Adjusting Model Size in Continual Gaussian Processes: How Big is Big Enough?
Guiomar Pescador-Barrios, Sarah Filippi, Mark van der Wilk
arxiv.org/abs/2408.07588 mastoxiv.page/@arXiv_statML_bo
- Non-Perturbative Trivializing Flows for Lattice Gauge Theories
Mathis Gerdes, Pim de Haan, Roberto Bondesan, Miranda C. N. Cheng
arxiv.org/abs/2410.13161 mastoxiv.page/@arXiv_heplat_bo
- Dynamic PET Image Prediction Using a Network Combining Reversible and Irreversible Modules
Sun, Zhang, Xia, Sun, Chen, Yang, Liu, Zhu, Liu
arxiv.org/abs/2410.22674 mastoxiv.page/@arXiv_eessIV_bo
- Targeted Learning for Variable Importance
Xiaohan Wang, Yunzhe Zhou, Giles Hooker
arxiv.org/abs/2411.02221 mastoxiv.page/@arXiv_statML_bo
- Refined Analysis of Federated Averaging and Federated Richardson-Romberg
Paul Mangold, Alain Durmus, Aymeric Dieuleveut, Sergey Samsonov, Eric Moulines
arxiv.org/abs/2412.01389 mastoxiv.page/@arXiv_statML_bo
- Embedding-Driven Data Distillation for 360-Degree IQA With Residual-Aware Refinement
Abderrezzaq Sendjasni, Seif-Eddine Benkabou, Mohamed-Chaker Larabi
arxiv.org/abs/2412.12667 mastoxiv.page/@arXiv_csCV_bot/
- 3D Cell Oversegmentation Correction via Geo-Wasserstein Divergence
Peter Chen, Bryan Chang, Olivia A Creasey, Julie Beth Sneddon, Zev J Gartner, Yining Liu
arxiv.org/abs/2502.01890 mastoxiv.page/@arXiv_csCV_bot/
- DHP: Discrete Hierarchical Planning for Hierarchical Reinforcement Learning Agents
Shashank Sharma, Janina Hoffmann, Vinay Namboodiri
arxiv.org/abs/2502.01956 mastoxiv.page/@arXiv_csRO_bot/
- Foundation for unbiased cross-validation of spatio-temporal models for species distribution modeling
Diana Koldasbayeva, Alexey Zaytsev
arxiv.org/abs/2502.03480
- GraphCompNet: A Position-Aware Model for Predicting and Compensating Shape Deviations in 3D Printing
Juheon Lee (Rachel), Lei (Rachel), Chen, Juan Carlos Catana, Hui Wang, Jun Zeng
arxiv.org/abs/2502.09652 mastoxiv.page/@arXiv_csCV_bot/
- LookAhead Tuning: Safer Language Models via Partial Answer Previews
Liu, Wang, Luo, Yuan, Sun, Liang, Zhang, Zhou, Hooi, Deng
arxiv.org/abs/2503.19041 mastoxiv.page/@arXiv_csCL_bot/
- Constraint-based causal discovery with tiered background knowledge and latent variables in single...
Christine W. Bang, Vanessa Didelez
arxiv.org/abs/2503.21526 mastoxiv.page/@arXiv_statML_bo
toXiv_bot_toot

@arXiv_csGR_bot@mastoxiv.page
2026-02-04 07:35:27

[2026-02-04 Wed (UTC), 5 new articles found for cs.GR Graphics]
toXiv_bot_toot

@simon_brooke@mastodon.scot
2025-12-27 10:15:27

OK, this is genuinely scary. It's a picture of me, aged 5. It was taken in 1960. It was scanned and uploaded to Google Photos in 2002. No one has told Google where it was taken. But the map, bottom right, is correct.
Obviously, in 1960, my father's pre-war Exakta camera did not have GPS. Could you identify, from that picture, exactly where it was taken?
Google can.

A black and white picture of a small, anxious boy with blond hair, sitting on a stony beach. At the top of the beach, on the grass, a line of cars is visible. The picture is on a Google Photos page, and at the bottom right of the page is a map which shows the exact location where the photo was taken -- and it's right.
@arXiv_csGT_bot@mastoxiv.page
2025-12-08 08:03:50

Strategyproof Tournament Rules for Teams with a Constant Degree of Selfishness
David Pennock, Daniel Schoepflin, Kangning Wang
arxiv.org/abs/2512.05235 arxiv.org/pdf/2512.05235 arxiv.org/html/2512.05235
arXiv:2512.05235v1 Announce Type: new
Abstract: We revisit the well-studied problem of designing fair and manipulation-resistant tournament rules. In this problem, we seek a mechanism that (probabilistically) identifies the winner of a tournament after observing round-robin play among $n$ teams in a league. Such a mechanism should satisfy the natural properties of monotonicity and Condorcet consistency. Moreover, from the league's perspective, the winner-determination tournament rule should be strategyproof, meaning that no team can do better by losing a game on purpose.
Past work considered settings in which each team is fully selfish, caring only about its own probability of winning, and settings in which each team is fully selfless, caring only about the total winning probability of itself and the team to which it deliberately loses. More recently, researchers considered a mixture of these two settings with a parameter $\lambda$. Intermediate selfishness $\lambda$ means that a team will not lose on purpose unless its pair gains at least $\lambda s$ winning probability, where $s$ is the individual team's sacrifice from its own winning probability. All of the dozens of previously known tournament rules require $\lambda = \Omega(n)$ to be strategyproof, and it has been an open problem to find such a rule with the smallest $\lambda$.
In this work, we make significant progress by designing a tournament rule that is strategyproof with $\lambda = 11$. Along the way, we propose a new notion of multiplicative pairwise non-manipulability that ensures that two teams cannot manipulate the outcome of a game to increase the sum of their winning probabilities by more than a multiplicative factor $\delta$ and provide a rule which is multiplicatively pairwise non-manipulable for $\delta = 3.5$.
toXiv_bot_toot

@arXiv_condmatmtrlsci_bot@mastoxiv.page
2026-01-01 10:23:36

High-Performance KV$_3$Sb$_5$/WSe$_2$ van der Waals Photodetectors
Yang Yang, Shaofeng Rao, Yuxuan Hou, Jiabo Liu, Deng Hu, Yunfei Guo, Jianzhou Zhao, Hechen Ren, Zhiwei Wang, Fan Yang
arxiv.org/abs/2512.24229

@arXiv_csLG_bot@mastoxiv.page
2025-12-22 13:54:24

Replaced article(s) found for cs.LG. arxiv.org/list/cs.LG/new
[1/5]:
- Feed Two Birds with One Scone: Exploiting Wild Data for Both Out-of-Distribution Generalization a...
Haoyue Bai, Gregory Canal, Xuefeng Du, Jeongyeol Kwon, Robert Nowak, Yixuan Li
arxiv.org/abs/2306.09158
- Sparse, Efficient and Explainable Data Attribution with DualXDA
Galip \"Umit Yolcu, Moritz Weckbecker, Thomas Wiegand, Wojciech Samek, Sebastian Lapuschkin
arxiv.org/abs/2402.12118 mastoxiv.page/@arXiv_csLG_bot/
- HGQ: High Granularity Quantization for Real-time Neural Networks on FPGAs
Sun, Que, {\AA}rrestad, Loncar, Ngadiuba, Luk, Spiropulu
arxiv.org/abs/2405.00645 mastoxiv.page/@arXiv_csLG_bot/
- On the Identification of Temporally Causal Representation with Instantaneous Dependence
Li, Shen, Zheng, Cai, Song, Gong, Chen, Zhang
arxiv.org/abs/2405.15325 mastoxiv.page/@arXiv_csLG_bot/
- Basis Selection: Low-Rank Decomposition of Pretrained Large Language Models for Target Applications
Yang Li, Daniel Agyei Asante, Changsheng Zhao, Ernie Chang, Yangyang Shi, Vikas Chandra
arxiv.org/abs/2405.15877 mastoxiv.page/@arXiv_csLG_bot/
- Privacy Bias in Language Models: A Contextual Integrity-based Auditing Metric
Yan Shvartzshnaider, Vasisht Duddu
arxiv.org/abs/2409.03735 mastoxiv.page/@arXiv_csLG_bot/
- Low-Rank Filtering and Smoothing for Sequential Deep Learning
Joanna Sliwa, Frank Schneider, Nathanael Bosch, Agustinus Kristiadi, Philipp Hennig
arxiv.org/abs/2410.06800 mastoxiv.page/@arXiv_csLG_bot/
- Hierarchical Multimodal LLMs with Semantic Space Alignment for Enhanced Time Series Classification
Xiaoyu Tao, Tingyue Pan, Mingyue Cheng, Yucong Luo, Qi Liu, Enhong Chen
arxiv.org/abs/2410.18686 mastoxiv.page/@arXiv_csLG_bot/
- Fairness via Independence: A (Conditional) Distance Covariance Framework
Ruifan Huang, Haixia Liu
arxiv.org/abs/2412.00720 mastoxiv.page/@arXiv_csLG_bot/
- Data for Mathematical Copilots: Better Ways of Presenting Proofs for Machine Learning
Simon Frieder, et al.
arxiv.org/abs/2412.15184 mastoxiv.page/@arXiv_csLG_bot/
- Pairwise Elimination with Instance-Dependent Guarantees for Bandits with Cost Subsidy
Ishank Juneja, Carlee Joe-Wong, Osman Ya\u{g}an
arxiv.org/abs/2501.10290 mastoxiv.page/@arXiv_csLG_bot/
- Towards Human-Guided, Data-Centric LLM Co-Pilots
Evgeny Saveliev, Jiashuo Liu, Nabeel Seedat, Anders Boyd, Mihaela van der Schaar
arxiv.org/abs/2501.10321 mastoxiv.page/@arXiv_csLG_bot/
- Regularized Langevin Dynamics for Combinatorial Optimization
Shengyu Feng, Yiming Yang
arxiv.org/abs/2502.00277
- Generating Samples to Probe Trained Models
Eren Mehmet K{\i}ral, Nur\c{s}en Ayd{\i}n, \c{S}. \.Ilker Birbil
arxiv.org/abs/2502.06658 mastoxiv.page/@arXiv_csLG_bot/
- On Agnostic PAC Learning in the Small Error Regime
Julian Asilis, Mikael M{\o}ller H{\o}gsgaard, Grigoris Velegkas
arxiv.org/abs/2502.09496 mastoxiv.page/@arXiv_csLG_bot/
- Preconditioned Inexact Stochastic ADMM for Deep Model
Shenglong Zhou, Ouya Wang, Ziyan Luo, Yongxu Zhu, Geoffrey Ye Li
arxiv.org/abs/2502.10784 mastoxiv.page/@arXiv_csLG_bot/
- On the Effect of Sampling Diversity in Scaling LLM Inference
Wang, Liu, Chen, Light, Liu, Chen, Zhang, Cheng
arxiv.org/abs/2502.11027 mastoxiv.page/@arXiv_csLG_bot/
- How to use score-based diffusion in earth system science: A satellite nowcasting example
Randy J. Chase, Katherine Haynes, Lander Ver Hoef, Imme Ebert-Uphoff
arxiv.org/abs/2505.10432 mastoxiv.page/@arXiv_csLG_bot/
- PEAR: Equal Area Weather Forecasting on the Sphere
Hampus Linander, Christoffer Petersson, Daniel Persson, Jan E. Gerken
arxiv.org/abs/2505.17720 mastoxiv.page/@arXiv_csLG_bot/
- Train Sparse Autoencoders Efficiently by Utilizing Features Correlation
Vadim Kurochkin, Yaroslav Aksenov, Daniil Laptev, Daniil Gavrilov, Nikita Balagansky
arxiv.org/abs/2505.22255 mastoxiv.page/@arXiv_csLG_bot/
- A Certified Unlearning Approach without Access to Source Data
Umit Yigit Basaran, Sk Miraj Ahmed, Amit Roy-Chowdhury, Basak Guler
arxiv.org/abs/2506.06486 mastoxiv.page/@arXiv_csLG_bot/
toXiv_bot_toot

@arXiv_condmatstrel_bot@mastoxiv.page
2026-02-02 14:48:22

Replaced article(s) found for cond-mat.str-el. arxiv.org/list/cond-mat.str-el
[1/1]:
- Magnetic Field Dependence of the Spin Fluctuations in CeCu$_{5.8}$Ag$_{0.2}$
X. Boraley, et al.

@@arXiv_physicsatomph_bot@mastoxiv.page@mastoxiv.page
2026-02-09 07:51:27

[2026-02-09 Mon (UTC), 5 new articles found for physics.atom-ph Atomic Physics]
toXiv_bot_toot

‪@mxp@mastodon.acm.org‬
2025-11-30 20:17:02

We also got a copy of the book “Murder Muzik,” which should make for good holiday reading.
editionsdarkside.com/produit/3
(I shouldn’t have looked at this page, because I now know that it costs twice as much in Sw…

@mxp@mastodon.acm.org‬
2025-11-30 20:17:02

We also got a copy of the book “Murder Muzik,” which should make for good holiday reading.
editionsdarkside.com/produit/3
(I shouldn’t have looked at this page, because I now know that it costs twice as much in Sw…

@mia@hcommons.social
2025-11-24 18:13:44

Online tickets are now available for the Fantastic Futures 2025 conference! #FF2025 is the annual conference of the @… community, jam-packed with inspiration and practical lessons for AI in GLAMs. Sign up to watch all talks on Thurs and Fri Dec 4 - 5 for free!

@Mediagazer@mstdn.social
2025-12-18 11:45:57

Analysis: music copyright's global value rose 5.2% YoY to a record $47.2B in 2024; the revenue split favored labels and artists at 62%, above songwriters' 38% (Will Page/Pivotal Economics)
pivotaleconomics.com/undercurr

@arXiv_qbioNC_bot@mastoxiv.page
2025-12-05 08:00:11

[2025-12-05 Fri (UTC), 5 new articles found for q-bio.NC Neurons and Cognition]
toXiv_bot_toot

@@arXiv_physicsatomph_bot@mastoxiv.page@mastoxiv.page
2025-12-08 08:37:40

Nuclear spin quenching of the $^2S_{1/2}\rightarrow {^2}F_{7/2} $ electric octupole transition in $^{173}$Yb$^ $
Jialiang Yu, Anand Prakash, Clara Zyskind, Ikbal A. Biswas, Rattakorn Kaewuam, Piyaphat Phoonthong, Tanja E. Mehlst\"aubler
arxiv.org/abs/2512.05872 arxiv.org/pdf/2512.05872 arxiv.org/html/2512.05872
arXiv:2512.05872v1 Announce Type: new
Abstract: We report the coherent excitation of the highly forbidden $^2S_{1/2} \rightarrow {^2}F_{7/2}$ clock transition in the odd isotope $^{173}\mathrm{Yb}^ $ with nuclear spin $I = 5/2$, and reveal the hyperfine-state-dependent, nuclear spin induced quenching of this transition. The inferred lifetime of the $F_e = 4$ hyperfine state is one order of magnitude shorter than the unperturbed ${^2}F_{7/2}$ clock state of $^{171}\mathrm{Yb}^ $. This reduced lifetime lowers the required optical power for coherent excitation of the clock transition, thereby reducing the AC Stark shift caused by the clock laser. Using a 3-ion Coulomb crystal, we experimentally demonstrate an approximately 20-fold suppression of the AC Stark shift, a critical improvement for the scalability of future multi-ion $\mathrm{Yb}^ $ clocks. Furthermore, we report the $|^2S_{1/2},F_g=3\rangle~\rightarrow~|^2F_{7/2},F_e=6\rangle$ unquenched reference transition frequency as $642.11917656354(43)$ THz, along with the measured hyperfine splitting and calculated quadratic Zeeman sensitivities of the ${^2}F_{7/2}$ clock state. Our results pave the way toward multi-ion optical clocks and quantum computers based on $^{173}\mathrm{Yb}^ $.
toXiv_bot_toot

@arXiv_physicsoptics_bot@mastoxiv.page
2025-11-25 09:57:52

Multi-port programmable silicon photonics using low-loss phase change material Sb$_2$Se$_3$
Thomas W. Radford, Idris A Ajia, Latif Rozaqi, Priya Deoli, Xingzhao Yan, Mehdi Banakar, David J Thomson, Ioannis Zeimpekis, Alberto Politi, Otto L. Muskens
arxiv.org/abs/2511.18205 arxiv.org/pdf/2511.18205 arxiv.org/html/2511.18205
arXiv:2511.18205v1 Announce Type: new
Abstract: Reconfigurable photonic devices are rapidly emerging as a cornerstone of next generation optical technologies, with wide ranging applications in quantum simulation, neuromorphic computing, and large-scale photonic processors. A central challenge in this field is identifying an optimal platform to enable compact, efficient, and scalable reconfigurability. Optical phase-change materials (PCMs) offer a compelling solution by enabling non-volatile, reversible tuning of optical properties, compatible with a wide range of device platforms and current CMOS technologies. In particular, antimony tri-selenide ($\text{Sb}_{2}\text{Se}_{3}$) stands out for its ultra low-loss characteristics at telecommunication wavelengths and its reversible switching. In this work, we present an experimental platform capable of encoding multi-port operations onto the transmission matrix of a compact multimode interferometer architecture on standard 220~nm silicon photonics using \textit{in-silico} designed digital patterns. The multi-port devices are clad with a thin film of $\text{Sb}_{2}\text{Se}_{3}$, which can be optically addressed using direct laser writing to provide local perturbations to the refractive index. A range of multi-port geometries from 2$\times$2 up to 5$\times$5 couplers are demonstrated, achieving simultaneous control of up to 25 matrix elements with programming accuracy of 90% relative to simulated patterns. Patterned devices remain stable with consistent optical performance across the C-band wavelengths. Our work establishes a pathway towards the development of large scale PCM-based reconfigurable multi-port devices which will allow implementing matrix operations on three orders of magnitude smaller areas than interferometer meshes.
toXiv_bot_toot

@rachel@norfolk.social
2025-11-15 16:23:55

A very dear friend of mine, Fern, who taught me pretty much all I know about overland bike travel, is in need of a new wheelchair. One that will get her out and about again on new adventures on five wheels rather than the two she is more used to.
Please do give what you can - it all helps.
justgivin…

@detondev@social.linux.pizza
2025-12-21 20:40:37

found the website of a dog-obsessed german couple, then the page where they memorialize their dead dogs
cmf-dogs.at/index.php/in-memor

Aira Black Thunderbolt

On the 5. 10. In 2012, unfortunately, we had to say goodbye to our mouse bear totally unexpectedly.
 
Aira was the most formative dog from our pack, the dog with the greatest character, the former alpha bitch of our pack and our former lead dog in the sled dog team. For a long time she led absolutely confidently our entire pack, she always knew exactly what she wanted and how she could enforce it. On the other hand, she was my shadow, my mousebearli, my cuddly dog.... ev…
@digitalnaiv@mastodon.social
2026-01-20 11:00:18

🏡 Silicon Valley ohne Tech-Milliardäre? Noch ist unklar, ob die 5 %-Reichensteuer kommt. Aber die Erwartung reicht schon: Larry Page, Peter Thiel & Co. verlegen Vermögenssitze in andere US-Bundesstaaten. 🇺🇸 #Capital | #Reichensteuer

@arXiv_csLG_bot@mastoxiv.page
2025-12-22 13:55:06

Replaced article(s) found for cs.LG. arxiv.org/list/cs.LG/new
[5/5]:
- CLAReSNet: When Convolution Meets Latent Attention for Hyperspectral Image Classification
Asmit Bandyopadhyay, Anindita Das Bhattacharjee, Rakesh Das
arxiv.org/abs/2511.12346 mastoxiv.page/@arXiv_csCV_bot/
- Safeguarded Stochastic Polyak Step Sizes for Non-smooth Optimization: Robust Performance Without ...
Dimitris Oikonomou, Nicolas Loizou
arxiv.org/abs/2512.02342 mastoxiv.page/@arXiv_mathOC_bo
- Predictive Modeling of I/O Performance for Machine Learning Training Pipelines: A Data-Driven App...
Karthik Prabhakar, Durgamadhab Mishra
arxiv.org/abs/2512.06699 mastoxiv.page/@arXiv_csPF_bot/
- Minimum Bayes Risk Decoding for Error Span Detection in Reference-Free Automatic Machine Translat...
Lyu, Song, Kamigaito, Ding, Tanaka, Utiyama, Funakoshi, Okumura
arxiv.org/abs/2512.07540 mastoxiv.page/@arXiv_csCL_bot/
- In-Context Learning for Seismic Data Processing
Fabian Fuchs, Mario Ruben Fernandez, Norman Ettrich, Janis Keuper
arxiv.org/abs/2512.11575 mastoxiv.page/@arXiv_csCV_bot/
- Journey Before Destination: On the importance of Visual Faithfulness in Slow Thinking
Rheeya Uppaal, Phu Mon Htut, Min Bai, Nikolaos Pappas, Zheng Qi, Sandesh Swamy
arxiv.org/abs/2512.12218 mastoxiv.page/@arXiv_csCV_bot/
- Non-Resolution Reasoning (NRR): A Computational Framework for Contextual Identity and Ambiguity P...
Kei Saito
arxiv.org/abs/2512.13478 mastoxiv.page/@arXiv_csCL_bot/
- Stylized Synthetic Augmentation further improves Corruption Robustness
Georg Siedel, Rojan Regmi, Abhirami Anand, Weijia Shao, Silvia Vock, Andrey Morozov
arxiv.org/abs/2512.15675 mastoxiv.page/@arXiv_csCV_bot/
- mimic-video: Video-Action Models for Generalizable Robot Control Beyond VLAs
Jonas Pai, Liam Achenbach, Victoriano Montesinos, Benedek Forrai, Oier Mees, Elvis Nava
arxiv.org/abs/2512.15692 mastoxiv.page/@arXiv_csRO_bot/
toXiv_bot_toot

@arXiv_physicsinsdet_bot@mastoxiv.page
2026-02-03 09:41:51

Development and characterization of hybrid MCP-PMT with embedded Timepix4 ASIC used as pixelated anode
Riccardo Bolzonella, Jerome Alozy, Rafael Ballabriga, Nicol\`o Vladi Biesuz, Michael Campbell, Viola Cavallini, Angelo Cotta Ramusino, Massimiliano Fiorini, Edoardo Franzoso, Marco Guarise, Xavi Llopart Cudie, Gabriele Romolini, Alessandro Saputi
arxiv.org/abs/2602.01886 arxiv.org/pdf/2602.01886 arxiv.org/html/2602.01886
arXiv:2602.01886v1 Announce Type: new
Abstract: We present a novel single-photon detector based on a vacuum tube incorporating a photocathode, a microchannel plate (MCP), and a Timepix4 CMOS ASIC functioning as a pixelated anode. Designed to handle photon rates up to 1 billion per second across a 7 cm$^2$ active area, the detector achieves outstanding spatial and temporal resolutions of 5-10 $\mu$m and below 50 ps r.m.s., respectively.
The Timepix4 ASIC comprises approximately 230,000 pixels, each integrating analog and digital front-end electronics. This enables data-driven acquisition and supports data transmission rates up to 160 Gb/s. External FPGA-based electronics manage both configuration and readout.
In order to test the timing performance of the Timepix4 ASIC we performed preliminary characterization of an assembly bonded to a 100 $\mu$m thick n-on-p silicon sensor using a pulsed infrared laser, which demonstrated a per-pixel timing resolution of 110 ps, with cluster-based averaging methods improving to below 50 ps.
Six prototype detectors incorporating different MCP stack configurations and end-spoiling depths were produced by Hamamatsu Photonics. We report on their characterization, including dark count rates, gain, and spatial and timing resolutions, assessed both in laboratory conditions and during a test-beam campaign at CERN's SPS facility.
toXiv_bot_toot

@arXiv_csDS_bot@mastoxiv.page
2026-02-03 09:16:48

A $5$-Approximation Analysis for the Cover Small Cuts Problem
Miles Simmons, Ishan Bansal, Joe Cheriyan
arxiv.org/abs/2602.01462 arxiv.org/pdf/2602.01462 arxiv.org/html/2602.01462
arXiv:2602.01462v1 Announce Type: new
Abstract: In the Cover Small Cuts problem, we are given a capacitated (undirected) graph $G=(V,E,u)$ and a threshold value $\lambda$, as well as a set of links $L$ with end-nodes in $V$ and a non-negative cost for each link $\ell\in L$; the goal is to find a minimum-cost set of links such that each non-trivial cut of capacity less than $\lambda$ is covered by a link. Bansal, Cheriyan, Grout, and Ibrahimpur (arXiv:2209.11209, Algorithmica 2024) showed that the WGMV primal-dual algorithm, due to Williamson, Goemans, Mihail, and Vazirani (Combinatorica, 1995), achieves approximation ratio $16$ for the Cover Small Cuts problem; their analysis uses the notion of a pliable family of sets that satisfies a combinatorial property. Later, Bansal (arXiv:2308.15714v2, IPCO 2025) and then Nutov (arXiv:2504.03910, MFCS 2025) proved that the same algorithm achieves approximation ratio $6$. We show that the same algorithm achieves approximation ratio $5$, by using a stronger notion, namely, a pliable family of sets that satisfies symmetry and structural submodularity.
toXiv_bot_toot

@arXiv_condmatstrel_bot@mastoxiv.page
2026-02-02 09:41:20

Magnetic field control of the excitonic transition in Ta$_2$NiSe$_5$
Giacomo Mazza
arxiv.org/abs/2601.23136 arxiv.org/pdf/2601.23136

Minnesota's brief asserts that federal agents left the scene several hrs after the shooting,
“allowing the perimeter to collapse and potentially spoiling evidence,”
a “sharp departure from normal best practices” that may’ve “directly led to the destruction of evidence.”

@raiders@darktundra.xyz
2025-12-16 20:35:39

Raiders Week 15 snap counts vs Eagles: 5 notable observations raiderswire.usatoday.com/story

@rafa_font@mastodon.online
2025-12-15 13:05:15

Hey Mastodon, can you please help me out here?
Which is the best *free tool* to organise a community of school parents in Italy?
For now they consider a GoogleDoc for documentation (just 4-5 pages for now) a Facebook page (to organise the discussions in threads). I'd like to propose a free alternative
People involved could be 10-30. There should be some sort of collaborative document management (like a wiki), and ideally a space for discussion (like a forum).
Id…

@voks@social.tchncs.de
2025-11-16 20:50:34

Uh, that's new?! Apps installed from #AuroraStore can't be updated in #GooglePlayStore anymore?
I just updated to Aurora 4.7.5.
#Android15

Screenshot of an app page in Google Play Store with the message saying: "The app installed on your device didn't come from Google Play and may have a different app experience. You can update the app from the original source or re-install from Google Play."
@arXiv_physicsinsdet_bot@mastoxiv.page
2026-02-03 09:12:46

PCIe400 generic readout board qualification test
Kevin Arnaud, Antoine Back, Daniel Charlet, Gabriel Degret, Luigi Del Buono, Paolo Durante, Amaury Hervo, Fr\'ed\'eric Hachon, Xavier Lafay, Julien Langou\"et, Renaud Le Gac, Jea-Luc Meunier, Jean-Marc Nappa, Costy Nassif Mattar, Christophe Renard, Guillaume Vouters
arxiv.org/abs/2602.01422 arxiv.org/pdf/2602.01422 arxiv.org/html/2602.01422
arXiv:2602.01422v1 Announce Type: new
Abstract: The PCIe400 is a generic board for high-throughput data acquisition systems in high energy physics experiments. Its purpose is to interface up to 48 bidirectional links, supporting custom protocols at 1 to 26 Gbit/s, to modern commercial back-end links providing 400 Gbit/s bandwidth. It also targets clock distribution with phase determinism below 10 ps peak-to-peak. It has been designed for LHCb LS3 enhancement upgrade with experimental features to prepare LHCb Upgrade II, foreseeing an aggregated throughput of 200 Tbit/s. However, its versatility allows it to be used in several experimental environments. The board embeds Altera's flagship Agilex 7 M-series FPGA with a PCIe Gen 5 interface and an experimental QSFP112 serial interface. We present the results of qualification tests performed on prototype boards and the challenges encountered to meet specifications. Section 1 describes board-level validation, including power-up behavior and peripheral access. Section 2 focuses on high-bandwidth interface qualification through BER measurements. Finally, Section 3 investigates phase determinism in Agilex transceivers, a key requirement for precise clock distribution.
toXiv_bot_toot

@arXiv_csDS_bot@mastoxiv.page
2026-02-04 07:39:24

ZOR filters: fast and smaller than fuse filters
Antoine Limasset
arxiv.org/abs/2602.03525 arxiv.org/pdf/2602.03525 arxiv.org/html/2602.03525
arXiv:2602.03525v1 Announce Type: new
Abstract: Probabilistic membership filters support fast approximate membership queries with a controlled false-positive probability $\varepsilon$ and are widely used across storage, analytics, networking, and bioinformatics \cite{chang2008bigtable,dayan2018optimalbloom,broder2004network,harris2020improved,marchet2023scalable,chikhi2025logan,hernandez2025reindeer2}. In the static setting, state-of-the-art designs such as XOR and fuse filters achieve low overhead and very fast queries, but their peeling-based construction succeeds only with high probability, which complicates deterministic builds \cite{graf2020xor,graf2022binary,ulrich2023taxor}.
We introduce \emph{ZOR filters}, a deterministic continuation of XOR/fuse filters that guarantees construction termination while preserving the same XOR-based query mechanism. ZOR replaces restart-on-failure with deterministic peeling that abandons a small fraction of keys, and restores false-positive-only semantics by storing the remainder in a compact auxiliary structure. In our experiments, the abandoned fraction drops below $1\%$ for moderate arity (e.g., $N\ge 5$), so the auxiliary handles a negligible fraction of keys. As a result, ZOR filters can achieve overhead within $1\%$ of the information-theoretic lower bound $\log_2(1/\varepsilon)$ while retaining fuse-like query performance; the additional cost is concentrated on negative queries due to the auxiliary check. Our current prototype builds several-fold slower than highly optimized fuse builders because it maintains explicit incidence information during deterministic peeling; closing this optimisation gap is an engineering target.
toXiv_bot_toot

@arXiv_condmatdisnn_bot@mastoxiv.page
2026-01-21 07:55:47

[2026-01-21 Wed (UTC), 5 new articles found for cond-mat.dis-nn Disordered Systems and Neural Networks]
toXiv_bot_toot

@arXiv_physicsoptics_bot@mastoxiv.page
2025-11-25 11:11:43

High-precision luminescence cryothermometry strategy by using hyperfine structure
Marina N. Popova, Mosab Diab, Boris Z. Malkin
arxiv.org/abs/2511.19088 arxiv.org/pdf/2511.19088 arxiv.org/html/2511.19088
arXiv:2511.19088v1 Announce Type: new
Abstract: A novel, to the best of our knowledge, ultralow-temperature luminescence thermometry strategy is proposed, based on a measurement of relative intensities of hyperfine components in the spectra of Ho$^{3 }$ ions doped into a crystal. A $^{7}$LiYF$_4$:Ho$^{3 }$ crystal is chosen as an example. First, we show that temperatures in the range 10-35 K can be measured using the Boltzmann behavior of the populations of crystal-field levels separated by an energy interval of 23 cm$^{-1}$. Then we select the 6089 cm$^{-1}$ line of the holmium $^5I_5 \rightarrow ^5I_7$ transition, which has a well-resolved hyperfine structure and falls within the transparency window of optical fibers (telecommunication S band), to demonstrate the possibility of measuring temperatures below 3 K. The temperature $T$ is determined by a least-squares fit to the measured intensities of all eight hyperfine components using the dependence $I(\nu) = I_1 \exp(-b\nu)$, where $I_1$ and $b = a\nu \frac{\nu}{kT}$ are fitting parameters and a accounts for intensity variations due to mixing of wave functions of different crystal-field levels by the hyperfine interaction. In this method, the absolute and relative thermal sensitivities grow at $T$ approaching zero as $\frac{1}{T^2}$.and $\frac{1}{T}$, respectively. We theoretically considered the intensity distributions within hyperfine manifolds and compared the results with experimental data. Application of the method to experimentally measured relative intensities of hyperfine components of the 6089 cm$^{-1}$ PL line yielded $T = 3.7 \pm 0.2$ K. For a temperature of 1 K, an order of magnitude better accuracy is expected.
toXiv_bot_toot

@Jeff@mastodon.opencloud.lu
2025-12-18 13:30:11

Scientific Advice Mechanism to the European Commission
December 2025
SAPEA (2025). Artificial intelligence in emergency and crisis management: Rapid evidence review report.
Downloadable from doi.org/10.5281/zenodo.17737962

Cover page of report. Illustration with hand-held tablet, under a layer of 5 hexagons.
@arXiv_physicsinsdet_bot@mastoxiv.page
2026-02-02 09:12:40

Simulation and optimization of the Active Magnetic Shield of the n2EDM experiment
N. J. Ayres, G. Ban, G. Bison, K. Bodek, V. Bondar, T. Bouillaud, G. L. Caratsch, E. Chanel, W. Chen, C. Crawford, V. Czamler, C. B. Doorenbos, S. Emmeneger, S. K. Ermakov, M. Ferry, M. Fertl, A. Fratangelo, D. Galbinski, W. C. Griffith, Z. D. Grujic, K. Kirch, V. Kletzl, J. Krempel, B. Lauss, T. Lefort, A. Lejuez, K. Michielsen, J. Micko, P. Mullan, O. Naviliat-Cuncic, F. M. Piegsa, G. Pignol, C. Pistillo, I. Rien\"acker, D. Ries, S. Roccia, D. Rozp\k{e}dzik, L. Sanchez-Real Zielniewicz, N. von Schickh, P. Schmidt-Wellenburg, E. P. Segarra, L. Segner, N. Severijns, K. Svirina, J. Thorne, J. Vankeirsbilck, N. Yazdandoost, J. Zejma, N. Ziehl, G. Zsigmond
arxiv.org/abs/2601.22960 arxiv.org/pdf/2601.22960 arxiv.org/html/2601.22960
arXiv:2601.22960v1 Announce Type: new
Abstract: The n2EDM experiment at the Paul Scherrer Institute aims to conduct a high-sensitivity search for the electric dipole moment of the neutron. Magnetic stability and control are achieved through a combination of passive shielding, provided by a magnetically shielded room (MSR), and a surrounding active field compensation system by an Active Magnetic Shield (AMS). The AMS is a feedback-controlled system of eight coils spanned on an irregular grid, designed to provide magnetic stability to the enclosed volume by actively suppressing external magnetic disturbances. It can compensate static and variable magnetic fields up to $\pm 50$ $\mu$T (homogeneous components) and $\pm 5$ $\mu$T/m (first-order gradients), suppressing them to a few $\mu$T in the sub-Hertz frequency range. We present a full finite element simulation of magnetic fields generated by the AMS in the presence of the MSR. This simulation is of sufficient accuracy to approach our measurements. We demonstrate how the simulation can be used with an example, obtaining an optimal number and placement of feedback sensors using genetic algorithms.
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2026-01-01 07:54:34

[2026-01-01 Thu (UTC), 5 new articles found for physics.atom-ph Atomic Physics]
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2025-12-30 08:25:04

[2025-12-30 Tue (UTC), 5 new articles found for physics.atom-ph Atomic Physics]
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2026-01-30 08:11:35

[2026-01-30 Fri (UTC), 5 new articles found for physics.atom-ph Atomic Physics]
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2026-01-27 07:51:13

[2026-01-27 Tue (UTC), 5 new articles found for physics.atom-ph Atomic Physics]
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2025-12-24 08:01:40

[2025-12-24 Wed (UTC), 5 new articles found for physics.atom-ph Atomic Physics]
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2025-11-18 08:58:34

Optical investigation of ultra-slow spin relaxation in $^{171}$Yb$^{3 }$:Y$_2$SiO$_5$ single crystals
Federico Chiossi, Alexey Tiranov, Luois Nicolas, Diana Serrano, Felix Montjovet-Basset, Elo\"ise Lafitte-Houssat, Alban Ferrier, Sacha Welinski, Lo\"ic Morvan, Perrine Berger, Mikael Afzelius, Philippe Goldner
arxiv.org/a…

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2026-01-14 08:37:43

The 0.5 Ratio Limit and Geometry-Induced Missing Energy: Universal 3D Quantum Constraints on Fragment Distributions from Attosecond to Subatomic Scales
Jinzhen Zhu
arxiv.org/abs/2601.08255

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2026-01-14 07:56:03

[2026-01-14 Wed (UTC), 5 new articles found for physics.atom-ph Atomic Physics]
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