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Computer Science

arXiv preprints from January 1, 2026 through July 28, 2026 — 16:19:36 EST

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Posted in cs.IT · 2026-01-06 · Anuj Kumar Bhagat, Ritumoni Sarma

On the Euclidean duals of the cyclic codes generated via cyclotomic polynomials

For a natural number $n\ge2$ which is co-prime to Char$(\mathbb{F}_q)$, let $\mathcal{C}_n$ and $\mathcal{C}_{n,1}$ denote the cyclic codes of length $n$ over $\mathbb{F}_q$ generated by the $n$-th cyclotomic polynomial $Q_n(x)$ and the polynomial $Q_n(x)Q_1(x)$, respectively. In \cite{BHAGAT2025}, the minimum distances of the codes...

💬 0 commentsarXiv:2601.03165v2PDF
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Posted in cs.CL · 2026-01-06 · Xinmiao Yu, Liwen Zhang, Xiaocheng Feng, Yong Jiang, Bing Qin, Pengjun Xie, Jingren Zhou

WebAnchor: Anchoring Agent Planning to Stabilize Long-Horizon Web Reasoning

Large Language Model(LLM)-based agents have shown strong capabilities in web information seeking, with reinforcement learning (RL) becoming a key optimization paradigm. However, planning remains a bottleneck, as existing methods struggle with long-horizon strategies. Our analysis reveals a critical phenomenon, plan anchor, where the...

💬 0 commentsarXiv:2601.03164v2PDF
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Posted in cs.CV · 2026-01-06 · Matěj Pekár, Vít Musil, Rudolf Nenutil, Petr Holub, Tomáš Brázdil

LSP-DETR: Efficient and Scalable Nuclei Segmentation in Whole Slide Images

Precise and scalable instance segmentation of cell nuclei is essential for computational pathology, yet gigapixel Whole-Slide Images pose major computational challenges. Existing approaches rely on patch-based processing and costly post-processing for instance separation, sacrificing context and efficiency. We introduce LSP-DETR...

💬 0 commentsarXiv:2601.03163v1PDF
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Posted in cs.LG · 2026-01-06 · Shuai Jiang, Alexey Voronin, Eric Cyr, Ben Southworth

On the Convergence Behavior of Preconditioned Gradient Descent Toward the Rich Learning Regime

Spectral bias, the tendency of neural networks to learn low frequencies first, can be both a blessing and a curse. While it enhances the generalization capabilities by suppressing high-frequency noise, it can be a limitation in scientific tasks that require capturing fine-scale structures. The delayed generalization phenomenon known...

💬 0 commentsarXiv:2601.03162v2PDF
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Posted in cs.LG · 2026-01-06 · Wadie Skaf, Felix Kern, Aryamaan Basu Roy, Tejas Pradhan, Roman Kalkreuth, Holger Hoos

Rapid Augmentations for Time Series (RATS): A High-Performance Library for Time Series Augmentation

Time series augmentation is critical for training robust deep learning models, particularly in domains where labelled data is scarce and expensive to obtain. However, existing augmentation libraries for time series, mainly written in Python, suffer from performance bottlenecks, where running time grows exponentially as dataset sizes...

💬 0 commentsarXiv:2601.03159v1PDF
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Posted in cs.LG · 2026-01-06 · Sofie Goethals, Foster Provost, João Sedoc

Prompt-Counterfactual Explanations for Generative AI System Behavior

As generative AI systems become integrated into real-world applications, organizations increasingly need to be able to understand and interpret their behavior. In particular, decision-makers need to understand what causes generative AI systems to exhibit specific output characteristics. Within this general topic, this paper examines a...

💬 0 commentsarXiv:2601.03156v2PDF
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Posted in cs.CL · 2026-01-06 · Beiduo Chen, Tiancheng Hu, Caiqi Zhang, Robert Litschko, Anna Korhonen, Barbara Plank

Decoupling the Effect of Chain-of-Thought Reasoning: A Human Label Variation Perspective

Reasoning-tuned LLMs utilizing long Chain-of-Thought (CoT) excel at single-answer tasks, yet their ability to model Human Label Variation--which requires capturing probabilistic ambiguity rather than resolving it--remains underexplored. We investigate this through systematic disentanglement experiments on distribution-based tasks,...

💬 0 commentsarXiv:2601.03154v2PDF
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Posted in cs.IR · 2026-01-06 · Jiakai Tang, Xu Chen, Wen Chen, Jian Wu, Yuning Jiang, Bo Zheng

Parallel Latent Reasoning for Sequential Recommendation

Capturing complex user preferences from sparse behavioral sequences remains a fundamental challenge in sequential recommendation. Recent latent reasoning methods have shown promise by extending test-time computation through multi-step reasoning, yet they exclusively rely on depth-level scaling along a single trajectory, suffering from...

💬 0 commentsarXiv:2601.03153v1PDF
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Posted in cs.LG · 2026-01-06 · Dehao Yuan, Tyler Farnan, Stefan Tesliuc, Doron L Bergman, Yulun Wu, Xiaoyu Liu, Minghui Liu, James Montgomery, Nam H Nguyen, C. Bayan Bruss, Furong Huang

PersonaLedger: Generating Realistic Financial Transactions with Persona Conditioned LLMs and Rule Grounded Feedback

Strict privacy regulations limit access to real transaction data, slowing open research in financial AI. Synthetic data can bridge this gap, but existing generators do not jointly achieve behavioral diversity and logical groundedness. Rule-driven simulators rely on hand-crafted workflows and shallow stochasticity, which miss the...

💬 0 commentsarXiv:2601.03149v2PDF
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Posted in cs.CL · 2026-01-06 · Andrew Shin

Self-Verification is All You Need To Pass The Japanese Bar Examination

Despite rapid advances in large language models (LLMs), achieving reliable performance on highly professional and structured examinations remains a significant challenge. The Japanese bar examination is a particularly demanding benchmark, requiring not only advanced legal reasoning but also strict adherence to complex answer formats...

💬 0 commentsarXiv:2601.03144v1PDF
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Posted in cs.DB · 2026-01-06 · Yangfan Jiang, Fei Wei, Ergute Bao, Yaliang Li, Bolin Ding, Yin Yang, Xiaokui Xiao

Accurate Table Question Answering with Accessible LLMs

Given a table T in a database and a question Q in natural language, the table question answering (TQA) task aims to return an accurate answer to Q based on the content of T. Recent state-of-the-art solutions leverage large language models (LLMs) to obtain high-quality answers. However, most rely on proprietary, large-scale LLMs with...

💬 0 commentsarXiv:2601.03137v1PDF
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Posted in cs.CL · 2026-01-06 · Selma Wanna, Agnes Luhtaru, Jonathan Salfity, Ryan Barron, Juston Moore, Cynthia Matuszek, Mitch Pryor

Limited Linguistic Diversity in Embodied AI Datasets

Language plays a critical role in Vision-Language-Action (VLA) models, yet the linguistic characteristics of the datasets used to train and evaluate these systems remain poorly documented. In this work, we present a systematic dataset audit of several widely used VLA corpora, aiming to characterize what kinds of instructions these...

💬 0 commentsarXiv:2601.03136v2PDF
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Posted in cs.CL · 2026-01-06 · Aashish Dhawan, Christopher Driggers-Ellis, Christan Grant, Daisy Zhe Wang

Improving Indigenous Language Machine Translation with Synthetic Data and Language-Specific Preprocessing

Low-resource indigenous languages often lack the parallel corpora required for effective neural machine translation (NMT). Synthetic data generation offers a practical strategy for mitigating this limitation in data-scarce settings. In this work, we augment curated parallel datasets for indigenous languages of the Americas with...

💬 0 commentsarXiv:2601.03135v2PDF
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Posted in cs.CL · 2026-01-06 · Xiangzhe Yuan, Zhenhao Zhang, Haoming Tang, Siying Hu

The Anatomy of Conversational Scams: A Topic-Based Red Teaming Analysis of Multi-Turn Interactions in LLMs

As LLMs gain persuasive capabilities through extended dialogues, they create new opportunities for studying adversarial conversational behavior in extended interaction settings that traditional single-turn safety evaluations fail to capture. We systematically study these interactional dynamics using a controlled LLM-to-LLM simulation...

💬 0 commentsarXiv:2601.03134v2PDF
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Posted in cs.AI · 2026-01-06 · Faisal Chowdhury, Nandana Mihindukulasooriya, Niharika S D'Souza, Horst Samulowitz, Neeru Gupta, Tomasz Hanusiak, Michal Kapitonow

Automatic Prompt Engineering with No Task Cues and No Tuning

This paper presents a system for automatic prompt engineering that is much simpler in both design and application and yet as effective as the existing approaches. It requires no tuning and no explicit clues about the task. We evaluated our approach on cryptic column name expansion (CNE) in database tables, a task which is critical for...

💬 0 commentsarXiv:2601.03130v1PDF
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Posted in cs.DS · 2026-01-06 · Matthias Bentert, Tom-Lukas Breitkopf, Vincent Froese, Anton Herrmann, André Nichterlein

Density Matters: A Complexity Dichotomy of Deleting Edges to Bound Subgraph Density

We study $τ$-Bounded-Density Edge Deletion ($τ$-BDED), where given an undirected graph $G$, the task is to remove as few edges as possible to obtain a graph $G'$ where no subgraph of $G'$ has density more than $τ$. The density of a (sub)graph is the number of edges divided by the number of vertices. This problem was recently...

💬 0 commentsarXiv:2601.03129v1PDF
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Posted in cs.CV · 2026-01-06 · Sashuai Zhou, Qiang Zhou, Jijin Hu, Hanqing Yang, Yue Cao, Junpeng Ma, Yinchao Ma, Jun Song, Tiezheng Ge, Cheng Yu, Bo Zheng, Zhou Zhao

Unified Thinker: A General Reasoning Modular Core for Image Generation

Despite impressive progress in high-fidelity image synthesis, generative models still struggle with logic-intensive instruction following, exposing a persistent reasoning--execution gap. Meanwhile, closed-source systems (e.g., Nano Banana) have demonstrated strong reasoning-driven image generation, highlighting a substantial gap to...

💬 0 commentsarXiv:2601.03127v2PDF
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Posted in cs.CV · 2026-01-06 · B. M. Shahria Alam, Md. Nasim Ahmed

LeafLife: An Explainable Deep Learning Framework with Robustness for Grape Leaf Disease Recognition

Plant disease diagnosis is essential to farmers' management choices because plant diseases frequently lower crop yield and product quality. For harvests to flourish and agricultural productivity to boost, grape leaf disease detection is important. The plant disease dataset contains grape leaf diseases total of 9,032 images of four...

💬 0 commentsarXiv:2601.03124v1PDF
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Posted in cs.CL · 2026-01-06 · Peiran Li, Jan Fillies, Adrian Paschke

ToxiGAN: Toxic Data Augmentation via LLM-Guided Directional Adversarial Generation

Augmenting toxic language data in a controllable and class-specific manner is crucial for improving robustness in toxicity classification, yet remains challenging due to limited supervision and distributional skew. We propose ToxiGAN, a class-aware text augmentation framework that combines adversarial generation with semantic guidance...

💬 0 commentsarXiv:2601.03121v1PDF
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Posted in cs.LG · 2026-01-06 · Mustapha Hamdi, Mourad Jabou

Green MLOps: Closed-Loop, Energy-Aware Inference with NVIDIA Triton, FastAPI, and Bio-Inspired Thresholding

Energy efficiency is a first-order concern in AI deployment, as long-running inference can exceed training in cumulative carbon impact. We propose a bio-inspired framework that maps protein-folding energy basins to inference cost landscapes and controls execution via a decaying, closed-loop threshold. A request is admitted only when...

💬 0 commentsarXiv:2601.04250v1PDF
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Posted in cs.AI · 2026-01-06 · Adam Keane, Nick Pepper, Chris Burr, Amy Hodgkin, Dewi Gould, John Korna, Marc Thomas

A framework for assuring the accuracy and fidelity of an AI-enabled Digital Twin of en route UK airspace

Digital Twins combine simulation, operational data and Artificial Intelligence (AI), and have the potential to bring significant benefits across the aviation industry. Project Bluebird, an industry-academic collaboration, has developed a probabilistic Digital Twin of en route UK airspace as an environment for training and testing AI...

💬 0 commentsarXiv:2601.03120v1PDF
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Posted in cs.CV · 2026-01-06 · Lord Sen, Shyamapada Mukherjee

A Novel Unified Approach to Deepfake Detection

The advancements in the field of AI is increasingly giving rise to various threats. One of the most prominent of them is the synthesis and misuse of Deepfakes. To sustain trust in this digital age, detection and tagging of deepfakes is very necessary. In this paper, a novel architecture for Deepfake detection in images and videos is...

💬 0 commentsarXiv:2601.03382v1PDF
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Posted in cs.GT · 2026-01-06 · Laurent Doyen, Shibashis Guha

Algorithm and Strategy Construction for Sure-Almost-Sure Stochastic Parity Games

We consider turn-based stochastic two-player games with a combination of a parity condition that must hold surely, that is in all possible outcomes, and of a parity condition that must hold almost-surely, that is with probability 1. The problem of deciding the existence of a winning strategy in such games is central in the framework...

💬 0 commentsarXiv:2601.03381v1PDF
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Posted in cs.SE · 2026-01-06 · Yu Huo, Kun Zeng, Siyu Zhang, Yuquan Lu, Cheng Yang, Yifu Guo, Xiaoying Tang

RepoShapley: Shapley-Enhanced Context Filtering for Repository-Level Code Completion

Repository-level code completion benefits from retrieval-augmented generation (RAG). However, controlling cross-file evidence is difficult because chunk utility is often interaction-dependent: some snippets help only when paired with complementary context, while others harm decoding when they conflict. We propose RepoShapley, a...

💬 0 commentsarXiv:2601.03378v2PDF