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Computer Science

arXiv preprints from January 1, 2026 through September 5, 2026 — 05:21:11 EST

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Posted in cs.SE · 2026-09-01 · Yue Sun, Tong Liu, Yipu Liao, Jingde Chen, Ke Li

Reliable LLM-Generated Programs for High-Energy Physics Experiments through Graph-Grounded Software Knowledge

Extracting physics information from modern particle-physics experiments requires multistage analyses implemented on top of large and highly interconnected software ecosystems. General-purpose large language models (LLMs) often produce unreliable programs for such tasks because a user request alone rarely specifies the required APIs,...

💬 0 commentsarXiv:2609.01095v1PDF
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Posted in cs.CV · 2026-09-01 · Chujie Qin, Zilong Zhang, Zewei Chang, Chunle Guo, Ruixing Wang, Tao Hu, Ming-Ming Cheng, Chongyi Li

Dotting the Eye: An Intent-Driven Image Retouching Agent for Visual Focus Enhancement

Image retouching is commonly formulated as enhancing overall visual quality through color adjustment, but in practice, it also serves to emphasize visual focus by guiding viewers' attention toward a specific subject or region. Achieving such focus-oriented retouching is inherently challenging, as it requires well-coordinated global...

💬 0 commentsarXiv:2609.01148v1PDF
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Posted in cs.CV · 2026-09-01 · Chaohao Yuan, Ruifeng Yuan, Zhuoxu Huang, Yu Rong, Hong Cheng, Hou Pong Chan, Chenghao Xiao

On the Design Fundamentals of Pixel Text Representation Learning

Text-rich visual inputs require models that can read, retrieve, and compress language directly in pixel space, yet existing pixel-text encoders struggle with fixed resolution pretraining, visual shortcut learning, weak visual grounding, and multilingual visual text understanding. In this work, we investigate the fundamental design...

💬 0 commentsarXiv:2609.01147v1PDF
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Posted in cs.CV · 2026-09-01 · Hongtao Kang, Die Luo, Li Chen, Jing Cai, Junbo Hu, Xiuli Liu, Shenghua Cheng

StainPresetNet: Stain Preset Network for Fast Multi-to-Multi Stain Normalization

Stain normalization reduces color variations caused by variations in staining protocols and imaging conditions, thereby enhancing computer-aided diagnostic system performance. Traditional methods derive mapping relationships from individual or limited reference images through pixel-wise transformation, offering style flexibility but...

💬 0 commentsarXiv:2609.01146v1PDF
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Posted in cs.CV · 2026-09-01 · Michael Zang, Haiyu Wu, Mrinal Sharma, Kevin W. Bowyer

Revisiting Face Recognition for Monozygotic Twins: The Celeb Twins Test Set

Past literature on face recognition for monozygotic (("identical") twins points to facial marks and mirror asymmetry as possible directions for improved accuracy of twins recognition. The Celeb Twins Test Set (CTTS) contains web-scraped image pairs for 80 sets of celebrity twins. It is the only twins test set with meta-data for twins...

💬 0 commentsarXiv:2609.01141v1PDF
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Posted in cs.CL · 2026-09-01 · Sebastian Steindl, Nikos Voskarides, Alberto Gasparin, Diego Marcheggiani

Does task decomposition improve automatic NLG evaluation?

The LLM-as-a-judge (LLMaJ) framework has emerged as a promising solution for cheap, reproducible, reference-free Natural Language Generation (NLG) evaluation. Prior work seeks to improve LLMaJ by decomposing evaluation tasks into simpler sub-tasks. In this work, we systematically compare LLMaJ methods with and without decomposition on...

💬 0 commentsarXiv:2609.01139v1PDF
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Posted in cs.CV · 2026-09-01 · Jiyoung Park, InJae Oh, Jung Uk Kim

Different Changes Require Different Reasoning: Change-Type-Specialized Experts for Robust Change Captioning

Change captioning is the task of generating natural language descriptions that explain the changes between a pair of images. Although different change types (e.g., color shifts, object additions) exhibit distinct visual cues and require specialized reasoning processes, existing methods often overlook these distinctions. To address...

💬 0 commentsarXiv:2609.01136v1PDF
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Posted in cs.CL · 2026-09-01 · Riza Setiawan Soetedjo, Yusuke Sakai, Hidetaka Kamigaito, Katsuhiko Hayashi, Taro Watanabe

Overfitting Mitigation via Singular Value Decomposition in Minimum Bayes Risk Decoding

Minimum Bayes Risk (MBR) decoding enables high-quality text generation by selecting the hypothesis that maximizes a utility metric over sampled pseudo-references. However, it is highly susceptible to metric overfitting: it can irregularly inflate the chosen utility metric at the direct expense of other unoptimized evaluation metrics....

💬 0 commentsarXiv:2609.01135v1PDF
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Posted in cs.IT · 2026-09-01 · Yi Wang, Linglong Dai

From Source Reconstruction to Predictive State Preservation: An Information-Theoretic Framework for AI-Native Communication

AI-native communication increasingly aims to support prediction rather than reproduce every detail of the source. This shift raises a basic question left implicit by conventional source coding: what should be preserved when the terminal goal is prediction? We take the source-induced predictive state as the fidelity object. It is the...

💬 0 commentsarXiv:2609.01131v1PDF
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Posted in cs.LG · 2026-09-01 · Jiming Feng, Junliang Li

Scaled Idempotence in Transformer Attention: Paired OV Geometry and Shared-Value Algebras

We identify a recurrent algebraic regularity in Transformer attention: a sparse subset of effective OV operators $T=OV^\top$ nearly closes under composition, $T^2\approxαT$. Across six pretrained endpoints spanning 2.8B--235B parameters, 3.98--8.00% of heads reach squared closure alignment $\mathcal{P}\geq0.9$, while no matched...

💬 0 commentsarXiv:2609.01129v1PDF
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Posted in cs.LG · 2026-09-01 · Takumi Fujimoto, Hiroaki Nishi

When Does Online Adaptation Pay on the Edge? A Leakage-Free Evaluation of Warmup, Learning-Rate Selection, and Resource Trade-offs for Time-Series Forecasting

Online adaptation can help edge time-series forecasting under distribution drift, but its measured benefit is sensitive to evaluation choices. We study six public multivariate streams, including building-sensor and smart-meter data, under a leakage-free streaming protocol. We identify two additional sources of comparison bias. First,...

💬 0 commentsarXiv:2609.01126v1PDF
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Posted in cs.SD · 2026-09-01 · Saanvi Raghavendran, Abhishek Bhattacharjee

Artificial Rosetta Stone: Constrained Maximum A Posteriori (MAP) Reconstruction of Symbolic Raga Sequences via Order-k Markov Models

Reconstructing a damaged musical fragment is an inverse problem: the observed sequence contains partial information, while a raga encodes constraints limiting allowable completions. This paper formalizes a mathematical framework for this, proposing the Artificial Rosetta Stone (ARS). We separate three claims often conflated: a...

💬 0 commentsarXiv:2609.01064v1PDF
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Posted in cs.LG · 2026-09-01 · Satoshi Hayakawa

From Truncation to Commitment: Persistent Context in Uniform Discrete Diffusion

Uniform-state discrete diffusion models update all tokens in parallel while keeping every position revisable. Even when the commonly used top-$p$ rule leaves only one candidate at a position, that choice affects only the current reverse step and can be revised at the next sampling step. We ask what changes when selected hypotheses...

💬 0 commentsarXiv:2609.01043v1PDF
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Posted in cs.LG · 2026-09-01 · Raphaël Berthier

The Multiple Timescales of Gradient Descent on the Edge of Stability: A Perturbative Derivation of the Central Flow

The central flow of Cohen et al. (2025) is an empirically accurate continuous-time model of gradient descent at the edge of stability in deep learning, However, its derivation is heuristic. We propose a perturbative regime in which the central flow is the limit of gradient descent: we assume that the loss decomposes as $f = g +...

💬 0 commentsarXiv:2609.01034v1PDF
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Posted in cs.LG · 2026-09-01 · Ariel Smogorghevski, Nir Rosenfeld, Yaniv Romano

When Metropolis and Hastings Meet Bradley and Terry: Exact MCMC From Preference Voting

Sampling from distributions conditioned on desired semantic properties is an emerging challenge in modern generative modeling. Metropolis-Hastings (MH) provides a principled route to conditional sampling, but requires access to exact pointwise target-density evaluations, which are not available in generative settings. Meanwhile,...

💬 0 commentsarXiv:2609.00905v1PDF
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Posted in cs.LG · 2026-09-01 · Donghoon Lee, Shinjin Kang

Verdict Instability of OOD Scores under Reference Resampling

Post-hoc out-of-distribution detectors are fitted on a finite reference set, so every score they produce is an estimate. If we had chosen a different set, some verdicts would have moved. We measure that movement by resampling the reference set and recording the bootstrap standard deviation of the score, which we call verdict...

💬 0 commentsarXiv:2609.00691v1PDF
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Posted in cs.LG · 2026-08-31 · Yang Xu, Chenang Li, Jiefu Zhang, Haixiang Sun, Zhou Li, Vaneet Aggarwal

Selection-Aware Stress Testing for Interactive Agents

Agent evaluations often use one benchmark to choose a workflow and then search for task types where its advantage weakens, so both conclusions are selected from the same data. We introduce Selection-Aware Semantic Stress Testing (\SASST{}), which learns a task reweighting from pre-execution features on discovery tasks and evaluates...

💬 0 commentsarXiv:2608.30916v1PDF
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Posted in cs.CE · 2026-08-31 · Tomonori Kanno, Kensuke Ito, Yushi Yoshimura, Kyohei Shibano

Redefining Stablecoins from Nominal to Real Value: A Maximum Likelihood Approach

Stablecoins, typically pegged to fiat currencies, cannot achieve true stability because they inherit fluctuations in the underlying unit of account. To overcome this limitation, we introduce a stablecoin pegged to the Maximum Likelihood Value (MLV), a newly defined unit of account derived as the most probable configuration of latent...

💬 0 commentsarXiv:2608.30225v1PDF
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Posted in cs.CV · 2026-08-31 · Vanodhya G. Warnasooriya, Amir Hajian, Watchara Ruangsang, Supavadee Aramvith

Real-Time Video Anomaly Detection Using YOLO Pose Estimation and CLIP-Based Semantic Scoring

We propose a lightweight two-stage framework for real-time video anomaly detection. The first stage employs YOLO v11n-pose to detect persons and extract seventeen skeletal keypoints in a single forward pass. The second stage encodes each cropped person region through CLIP ViT-B/32 and computes cosine similarity against predefined...

💬 0 commentsarXiv:2608.31074v1PDF
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Posted in cs.CV · 2026-08-31 · Jiacheng Wang, Ivana Isgum, Ipek Oguz

LISynSeg: Data-Centric Label-to-Image Synthesis for Cross-Modality Whole-Heart Segmentation

Whole-heart segmentation (WHS) in computed tomography (CT) and magnetic resonance imaging (MRI) is affected by acquisition shifts and heterogeneous cardiac annotations. Existing WHS systems combine architectural design, transfer learning, and generic spatial or intensity augmentation. We investigate whether changes to data...

💬 0 commentsarXiv:2608.31073v1PDF
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Posted in cs.CL · 2026-08-31 · Joonyong Park, Jerry Li

When Does Predictor-Based RL Align with Human Perception? A Study of Subjective Rewards in Codec-Based Speech Language Models

Codec-based text-to-speech (TTS) models make language-model post-training applicable to speech generation, but it remains unclear when learned perceptual predictors can serve as reinforcement learning rewards without losing alignment with human listeners. We study this question with Group Relative Policy Optimization (GRPO) using...

💬 0 commentsarXiv:2608.31035v1PDF
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Posted in cs.SD · 2026-08-31 · Gabriel Meseguer-Brocal, Yuexuan Kong, Romain Hennequin

CoJEPA: Combining Contrastive Learning and JEPA for Global-Local Music Representations

Joint-Embedding Predictive Architecture (JEPA) has shown strong performance in learning rich representations through self-supervised prediction in latent space. However, it typically relies on teacher--student architecture with an EMA to stabilise training, and can tend to yield uninformative representations. Contrastive learning is...

💬 0 commentsarXiv:2608.30974v1PDF
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Posted in cs.SD · 2026-08-31 · Laura Ibáñez-Martínez, Roser Batlle-Roca, Xavier Serra, Martín Rocamora

MusGU+: Toward a Musician-Centered Evaluation Framework and Discovery Tool for Generative Music AI

Generative music systems are increasingly presented as tools that democratize music creation, yet their practical suitability for musicians remains underexplored. Prior work includes openness-focused evaluation frameworks, such as MusGO (Music-Generative Open AI), as well as qualitative studies of musicians' experiences with...

💬 0 commentsarXiv:2608.30940v1PDF
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Posted in cs.AR · 2026-08-31 · Nika Mansouri Ghiasi

Storage-Centric System Designs for Enabling Fast, Efficient, and Low-Cost Genomic and Metagenomic Analyses

Genomic and metagenomic analyses play critical roles in many fields, such as precision medicine, urgent clinical settings, discovering early warnings of communicable diseases, ensuring food safety through pathogen monitoring, agriculture, and scientific discovery. Due to the challenges of analyzing and storing massive volumes of...

💬 0 commentsarXiv:2608.31004v1PDF
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Posted in cs.LG · 2026-08-31 · Raunak Kumar, Anuj Pal, Dhruvi Solanki, Parikshit Pareek, Juhi Singh, Jitin Singla

Coarse composition suffices: tabular in-context learning for multi-activity antimicrobial peptide profiling

Antimicrobial peptides (AMPs) often act against multiple pathogen classes, making multi-label activity prediction a more realistic screening target than binary antimicrobial classification. The ESCAPE benchmark formalizes this setting, but leading approaches typically rely on multimodal, structure-conditioned deep models that are...

💬 0 commentsarXiv:2608.30337v1PDF