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Computer Science

arXiv preprints from January 1, 2026 through July 28, 2026 — 06:20:34 EST

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Posted in cs.CV · 2026-01-02 · Shukesh Reddy, Srijan Das, Abhijit Das

Fusion-SSAT: Unleashing the Potential of Self-supervised Auxiliary Task by Feature Fusion for Generalized Deepfake Detection

In this work, we attempted to unleash the potential of self-supervised learning as an auxiliary task that can optimise the primary task of generalised deepfake detection. To explore this, we examined different combinations of the training schemes for these tasks that can be most effective. Our findings reveal that fusing the feature...

💬 0 commentsarXiv:2601.00789v1PDF
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Posted in cs.CY · 2026-01-02 · Ruoxin Xiong, Yanyu Wang, Jiannan Cai, Kaijian Liu, Yuansheng Zhu, Pingbo Tang, Nora El-Gohary, George Edward Gibson

Toward Open Science in the AEC Community: An Ecosystem for Sustainable Digital Knowledge Sharing and Reuse

The Architecture, Engineering, and Construction (AEC) industry is undergoing rapid digital transformation, producing diverse digital assets such as datasets, computational models, use cases, and educational materials across the built environment lifecycle. However, these resources are often fragmented across repositories and...

💬 0 commentsarXiv:2601.00788v1PDF
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Posted in cs.CL · 2026-01-02 · Jonathan Simkin, Lovedeep Gondara, Zeeshan Rizvi, Gregory Doyle, Jeff Dowden, Dan Bond, Desmond Martin, Raymond Ng

Adapting Natural Language Processing Models Across Jurisdictions: A pilot Study in Canadian Cancer Registries

Population-based cancer registries depend on pathology reports as their primary diagnostic source, yet manual abstraction is resource-intensive and contributes to delays in cancer data. While transformer-based NLP systems have improved registry workflows, their ability to generalize across jurisdictions with differing reporting...

💬 0 commentsarXiv:2601.00787v1PDF
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Posted in cs.CV · 2026-01-02 · Megha Mariam K. M, Aditya Arun, Zakaria Laskar, C. V. Jawahar

PhyEduVideo: A Benchmark for Evaluating Text-to-Video Models for Physics Education

Generative AI models, particularly Text-to-Video (T2V) systems, offer a promising avenue for transforming science education by automating the creation of engaging and intuitive visual explanations. In this work, we take a first step toward evaluating their potential in physics education by introducing a dedicated benchmark for...

💬 0 commentsarXiv:2601.00943v1PDF
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Posted in cs.LG · 2026-01-02 · Sunny Gupta, Amit Sethi

FedHypeVAE: Federated Learning with Hypernetwork Generated Conditional VAEs for Differentially Private Embedding Sharing

Federated data sharing promises utility without centralizing raw data, yet existing embedding-level generators struggle under non-IID client heterogeneity and provide limited formal protection against gradient leakage. We propose FedHypeVAE, a differentially private, hypernetwork-driven framework for synthesizing embedding-level data...

💬 0 commentsarXiv:2601.00785v1PDF
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Posted in cs.CR · 2026-01-02 · John Carter, Spiros Mancoridis, Pavlos Protopapas, Brian Mitchell, Benji Lilley

Improving Router Security using BERT

Previous work on home router security has shown that using system calls to train a transformer-based language model built on a BERT-style encoder using contrastive learning is effective in detecting several types of malware, but the performance remains limited at low false positive rates. In this work, we demonstrate that using a...

💬 0 commentsarXiv:2601.00783v1PDF
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Posted in cs.LG · 2026-01-02 · Samson Gourevitch, Alain Durmus, Eric Moulines, Jimmy Olsson, Yazid Janati

Categorical Reparameterization with Denoising Diffusion models

Learning models with categorical variables requires optimizing expectations over discrete distributions, a setting in which stochastic gradient-based optimization is challenging due to the non-differentiability of categorical sampling. A common workaround is to replace the discrete distribution with a continuous relaxation, yielding a...

💬 0 commentsarXiv:2601.00781v2PDF
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Posted in cs.SD · 2026-01-02 · Akanksha Chuchra, Shukesh Reddy, Sudeepta Mishra, Abhijit Das, Abhinav Dhall

Investigating the Viability of Employing Multi-modal Large Language Models in the Context of Audio Deepfake Detection

While Vision-Language Models (VLMs) and Multimodal Large Language Models (MLLMs) have shown strong generalisation in detecting image and video deepfakes, their use for audio deepfake detection remains largely unexplored. In this work, we aim to explore the potential of MLLMs for audio deepfake detection. Combining audio inputs with a...

💬 0 commentsarXiv:2601.00777v1PDF
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Posted in cs.GR · 2026-01-02 · Mingzhe Li, Peer Nowack, Bei Wang

Spatiotemporal Detection and Uncertainty Visualization of Atmospheric Blocking Events

Atmospheric blocking events are quasi-stationary high-pressure systems that disrupt the typical paths of polar and subtropical air currents, often producing prolonged extreme weather events such as summer heat waves or winter cold spells. Despite their critical role in shaping mid-latitude weather, accurately modeling and analyzing...

💬 0 commentsarXiv:2601.00775v1PDF
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Posted in cs.LG · 2026-01-02 · Kabir Grover

Reliability Under Randomness: An Empirical Analysis of Sparse and Dense Language Models Across Decoding Temperatures

The increasing prevalence of sparse Mixture-of-Experts (MoE) architectures in large language models raises important questions regarding their reliability under stochastic decoding. While conditional computation enables substantial gains in computational efficiency, it remains unclear whether the interaction between sparse routing and...

💬 0 commentsarXiv:2601.00942v1PDF
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Posted in cs.CE · 2026-01-02 · Simon Paquette-Greenbaum, Jiangbo Yu

LLM Agents for Combinatorial Efficient Frontiers: Investment Portfolio Optimization

Investment portfolio optimization is a task conducted in all major financial institutions. The Cardinality Constrained Mean-Variance Portfolio Optimization (CCPO) problem formulation is ubiquitous for portfolio optimization. The challenge of this type of portfolio optimization, a mixed-integer quadratic programming (MIQP) problem,...

💬 0 commentsarXiv:2601.00770v1PDF
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Posted in cs.DS · 2026-01-02 · Mihail Stoian

Mind the Gap. Doubling Constant Parametrization of Weighted Problems: TSP, Max-Cut, and More

Despite much research, hard weighted problems still resist super-polynomial improvements over their textbook solution. On the other hand, the unweighted versions of these problems have recently witnessed the sought-after speedups. Currently, the only way to repurpose the algorithm of the unweighted version for the weighted version is...

💬 0 commentsarXiv:2601.00768v2PDF
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Posted in cs.HC · 2026-01-02 · Joslyn Orgill, Andra Rice, Max Fowler, Seth Poulsen

The Effect of Transparency on Students' Perceptions of AI Graders

The development of effective autograders is key for scaling assessment and feedback. While NLP based autograding systems for open-ended response questions have been found to be beneficial for providing immediate feedback, autograders are not always liked, understood, or trusted by students. Our research tested the effect of...

💬 0 commentsarXiv:2601.00765v1PDF
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Posted in cs.IR · 2026-01-02 · Eric Y. Kim, Jie Huang

FinRetrieval: A Benchmark for Financial Data Retrieval by AI Agents

AI agents increasingly assist with financial research, yet no benchmark evaluates their ability to retrieve specific numeric values from structured databases. We introduce FinRetrieval, a benchmark of 500 financial retrieval questions with ground truth answers, agent responses from 14 configurations across three frontier providers...

💬 0 commentsarXiv:2603.04403v1PDF
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Posted in cs.LG · 2026-01-01 · Ali Devran Kara

Reinforcement Learning with Function Approximation for Non-Markov Processes

We study reinforcement learning methods with linear function approximation under non-Markov state and cost processes. We first consider the policy evaluation method and show that the algorithm converges under suitable ergodicity conditions on the underlying non-Markov processes. Furthermore, we show that the limit corresponds to the...

💬 0 commentsarXiv:2601.00151v1PDF
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Posted in cs.CV · 2026-01-01 · Yehui Yang, Dalu Yang, Fangxin Shang, Wenshuo Zhou, Jie Ren, Yifan Liu, Haojun Fei, Qing Yang, Yanwu Xu, Tao Chen

FCMBench: The First Large-scale Financial Credit Multimodal Benchmark for Real-world Applications

FCMBench is the first large-scale and privacy-compliant multimodal benchmark for real-world financial credit applications, covering tasks and robustness challenges from domain specific workflows and constraints. The current version of FCMBench covers 26 certificate types, with 5198 privacy-compliant images and 13806 paired VQA...

💬 0 commentsarXiv:2601.00150v3PDF
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Posted in cs.NI · 2026-01-01 · Chengjun Jiang, Milena Radenkovic

A-FC: An Activity-Based Delay Tolerant Routing Protocol for Improving Future School Campus Emergency Communications

School Campus emergency communication systems are vital for safeguarding student safety during sudden disasters such as typhoons, which frequently cause widespread paralysis of communication infrastructure. Traditional Delay-Tolerant Network (DTN) protocols, such as Direct Delivery and First Contact, struggle to maintain reliable...

💬 0 commentsarXiv:2601.00148v1PDF
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Posted in cs.AI · 2026-01-01 · Tiansi Dong, Henry He, Pietro Liò, Mateja Jamnik

An AI Monkey Gets Grapes for Sure -- Sphere Neural Networks for Reliable Decision-Making

This paper compares three methodological categories of neural reasoning: LLM reasoning, supervised learning-based reasoning, and explicit model-based reasoning. LLMs remain unreliable and struggle with simple decision-making that animals can master without extensive corpora training. Through disjunctive syllogistic reasoning testing,...

💬 0 commentsarXiv:2601.00142v1PDF
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Posted in cs.CV · 2026-01-01 · Lawrence Han

Attention to Detail: Global-Local Attention for High-Resolution AI-Generated Image Detection

The rapid development of generative AI has made AI-generated images increasingly realistic and high-resolution. Most AI-generated image detection architectures typically downsample images before inputting them into models, risking the loss of fine-grained details. This paper presents GLASS (Global-Local Attention with Stratified...

💬 0 commentsarXiv:2601.00141v1PDF
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Posted in cs.RO · 2026-01-01 · Julia Di, Kenneth A. W. Hoffmann, Tony G. Chen, Tian-Ao Ren, Mark R. Cutkosky

SLAP: Slapband-based Autonomous Perching Drone with Failure Recovery for Vertical Tree Trunks

Perching allows unmanned aerial vehicles (UAVs) to reduce energy consumption, remain anchored for surface sampling operations, or stably survey their surroundings. Previous efforts for perching on vertical surfaces have predominantly focused on lightweight mechanical design solutions with relatively scant system-level integration....

💬 0 commentsarXiv:2601.00238v1PDF
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Posted in cs.CV · 2026-01-01 · Chao Yang, Haoyuan Zheng, Yue Ma

Application Research of a Deep Learning Model Integrating CycleGAN and YOLO in PCB Infrared Defect Detection

This paper addresses the critical bottleneck of infrared (IR) data scarcity in Printed Circuit Board (PCB) defect detection by proposing a cross-modal data augmentation framework integrating CycleGAN and YOLOv8. Unlike conventional methods relying on paired supervision, we leverage CycleGAN to perform unpaired image-to-image...

💬 0 commentsarXiv:2601.00237v2PDF
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Posted in cs.SE · 2026-01-01 · Victor Wen, Zedong Peng

Advanced Vulnerability Scanning for Open Source Software: Detection and Mitigation of Log4j Vulnerabilities

Automated detection of software vulnerabilities remains a critical challenge in software security. Log4j is an industrial-grade Java logging framework listed as one of the top 100 critical open source projects. On Dec. 10, 2021 a severe vulnerability Log4Shell was disclosed before being fully patched with Log4j2 version 2.17.0 on Dec....

💬 0 commentsarXiv:2601.00235v1PDF
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Posted in cs.LG · 2026-01-01 · Pritish Saha, Chandrav Rajbangshi, Rudra Goyal, Mohit Goyal, Anurag Deo, Biswajit Roy, Ningthoujam Dhanachandra Singh, Raxit Goswami, Amitava Das

GRIT -- Geometry-Aware PEFT with K-FACPreconditioning, Fisher-Guided Reprojection, andDynamic Rank Adaptation

Parameter-efficient fine-tuning (PEFT) is the default way to adapt LLMs, but widely used LoRA and QLoRA are largely geometry-agnostic: they optimize in fixed, randomly oriented low-rank subspaces with first-order descent, mostly ignoring local loss curvature. This can inflate the effective update budget and amplify drift along weakly...

💬 0 commentsarXiv:2601.00231v1PDF
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Posted in cs.LG · 2026-01-01 · Ziyan Zhang, Bo Jiang, Jin Tang

Robust Graph Fine-Tuning with Adversarial Graph Prompting

Parameter-Efficient Fine-Tuning (PEFT) method has emerged as a dominant paradigm for adapting pre-trained GNN models to downstream tasks. However, existing PEFT methods usually exhibit significant vulnerability to various noise and attacks on graph topology and node attributes/features. To address this issue, for the first time, we...

💬 0 commentsarXiv:2601.00229v1PDF
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Posted in cs.AI · 2026-01-01 · Shanli Xing, Yiyan Zhai, Alexander Jiang, Yixin Dong, Yong Wu, Zihao Ye, Charlie Ruan, Yingyi Huang, Yineng Zhang, Liangsheng Yin, Aksara Bayyapu, Luis Ceze, Tianqi Chen

FlashInfer-Bench: Building the Virtuous Cycle for AI-driven LLM Systems

Recent advances show that large language models (LLMs) can act as autonomous agents capable of generating GPU kernels, but integrating these AI-generated kernels into real-world inference systems remains challenging. FlashInfer-Bench addresses this gap by establishing a standardized, closed-loop framework that connects kernel...

💬 0 commentsarXiv:2601.00227v1PDF