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🔍 pilar albert 📂 Computer Science
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Computer Science Preprint PDF DOI

D-Rex : Diffusion Rendering for Relightable Expressive Avatars

Timo Teufel, Xilong Zhou, Umar Iqbal, Jan Kautz, Marc Habermann, Vladislav Golyanik, Christian Theobalt · 2026

We present D-Rex, a person-specific framework for photorealistic, relightable, expressive, and animatable full-body human avatars with free-viewpoint rendering. Existing methods for relightable full-b…

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Computer Science Preprint PDF DOI

AnTi-MiCS: Analytical Framework for Bounding Time in Embedded Mixed-Criticality Systems

Behnaz Ranjbar, Akash Kumar · 2026

In Mixed-Criticality (MC) systems, although the high Worst-Case Execution Time (WCET) serves as a conservative upper bound representing the task's maximum execution time under all conditions, obtainin…

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Computer Science Preprint PDF DOI

Persona-Based Process Design for Assistive Human-Robot Workplaces for Persons with Disabilities

Nils Mandischer, Daria Eckert and, Lars Mikelsons · 2026

Human-robot interaction is emerging as an important paradigm for integrating persons with disabilities into the workplace. While these systems can enable individuals to work, their design is mostly pe…

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Computer Science Preprint PDF DOI

PiLLar: Matching for Pivot Table Schema via LLM-guided Monte-Carlo Tree Search

Yunjun Gao, Chuangyu Ouyang, Congcong Ge, Yifan Zhu · 2026

Pivot tables are ubiquitous in data lakes of modern data ecosystems, making accurate schema matching over pivot tables a key prerequisite for data integration. In this paper, we focus on matching for …

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Computer Science Preprint PDF DOI

GenDetect: Generalizing Reactive Detection for Resilience Against Imitative DeFi Attack Cascade

Bowen Cai, Weiheng Bai, Youshui Lu, Haoran Xu, Yuannan Yang, Yajin Zhou, Kangjie Lu · 2026

As blockchain ecosystems grow, financially motivated attackers increasingly exploit decentralized finance (DeFi) protocols, causing frequent and severe losses. Unlike conventional cyberattacks, DeFi e…

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Computer Science Preprint PDF DOI

Large Language Models as Explainable Cyberattack Detectors for Energy Industrial Control Systems

Weiyi Kong, Ahmad Mohammad Saber, Amr Youssef, Deepa Kundur · 2026

In modern energy systems, industrial control systems (ICS) and power-system SCADA require intrusion detection that is not only accurate but also auditable by operators. The ICS intrusion-detection lan…

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Computer Science Preprint PDF DOI

Towards Agentic Investigation of Security Alerts

Even Eilertsen, Vasileios Mavroeidis, Gudmund Grov · 2026

Security analysts are overwhelmed by the volume of alerts and the low context provided by many detection systems. Early-stage investigations typically require manual correlation across multiple log so…

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Computer Science Preprint PDF DOI

On the degradations of Binary-Input Discrete Memoryless Channels

Yadong Jiao, Xiaoyan Cheng, Yuansheng Tang, Ming Xu · 2026

For the polar codes introduced by Arikan in 2009, the first code family achieving the capacity of binary-input discrete memoryless channels (BIDMCs) with low-complexity encoding and decoding, it is cr…

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Computer Science Preprint PDF DOI

From Spoofing to Trust: Emergency Alerts Spoofing Testbed and Cross-Cell Verification

Abdallah Abou Hasna, Nada Chendeb, Ammar El Falou · 2026

Public warning systems (PWS) in cellular networks enable authorities to broadcast emergency alerts to all mobile phones in a geographic region in the event of threats such as earthquakes or severe wea…

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Computer Science Preprint PDF DOI

Semantic Denial of Service in LLM-controlled robots

Jonathan Steinberg, Oren Gal · 2026

Safety-oriented instruction-following is supposed to keep LLM-controlled robots safe. We show it also creates an availability attack surface. By injecting short safety-plausible phrases (1-5 tokens) i…

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Computer Science Preprint PDF DOI

Source-Code Analysis of iFogSim for Simulating Distributed IoT Architectures: Coverage, Challenges, and Enhancements

Milliam Maxime Zekeng Ndadji · 2026

Simulation is an indispensable tool for validating distributed IoT architectures before physical deployment, and iFogSim has emerged as one of the most widely adopted platform in the fog and edge comp…

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Computer Science Preprint PDF DOI

FlashSpread: IO-Aware GPU Simulation of Non-Markovian Epidemic Dynamics via Kernel Fusion

Heman Shakeri, Behnaz Moradi-Jamei, Aram Vajdi, Ehsan Ardjmand · 2026

Non-Markovian (renewal) epidemic simulation on multi-million-node contact networks is essential for realistic forecasting under general age-dependent holding-time distributions (log-normal, Weibull, E…

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Computer Science Preprint PDF DOI

CrossCommitVuln-Bench: A Dataset of Multi-Commit Python Vulnerabilities Invisible to Per-Commit Static Analysis

Arunabh Majumdar · 2026

We present CrossCommitVuln-Bench, a curated benchmark of 15 real-world Python vulnerabilities (CVEs) in which the exploitable condition was introduced across multiple commits - each individually benig…

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Computer Science Preprint PDF DOI

Spatiotemporal 2-D Polar Codes over Non-Uniform MIMO Channels: A Reliability-Aware Construction Approach

Yaqi Li, Shuohan Zhang, Xiaohu You, Jiamin Li · 2026

With the increasing demand for ultra-reliable and low-latency communication (URLLC), spatiotemporal two-dimensional (2-D) channel coding has received growing interest. By leveraging the spatial degree…

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Computer Science Preprint PDF DOI

PVAC: A RowHammer Mitigation Architecture Exploiting Per-victim-row Counting

Jumin Kim, Seungmin Baek, Hwayong Nam, Minbok Wi, Nam Sung Kim, Jung Ho Ahn · 2026

As DRAM scaling exacerbates RowHammer, DDR5 introduces per-row activation counting (PRAC) to track aggressor activity. However, PRAC indiscriminately increments counters on every activation -- includi…

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Computer Science Preprint PDF DOI

AgentSOC: A Multi-Layer Agentic AI Framework for Security Operations Automation

Joyjit Roy, Samaresh Kumar Singh · 2026

Security Operations Centers (SOCs) increasingly encounter difficulties in correlating heterogeneous alerts, interpreting multi-stage attack progressions, and selecting safe and effective response acti…

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Computer Science Preprint PDF DOI

Characterizing and Fixing Silent Data Loss in Spark-on-AWS-Lambda with Open Table Formats

Srujan Kumar Gandla · 2026

AWS Lambda terminates containers with an uncatchable SIGKILL signal when a function exceeds its configured timeout. When a Spark-on-AWS-Lambda (SoAL) job is killed between Phase 1 (data upload) and Ph…

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Computer Science Preprint PDF DOI

Finite-Length Empirical Comparison of Polar, PAC, and Invertible-Extractor Secrecy Codes over the Wiretap BSC

Jaswanthi Mandalapu, Andrew Thangaraj · 2026

We compare three secrecy-coding schemes for the degraded wiretap binary symmetric channel (BSC) in the finite-blocklength regime: (i) polar wiretap coset codes, (ii) PAC codes used as wiretap coset co…

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Computer Science Preprint PDF DOI

Diagnosable ColBERT: Debugging Late-Interaction Retrieval Models Using a Learned Latent Space as Reference

Francois Remy · 2026

Reliable biomedical and clinical retrieval requires more than strong ranking performance: it requires a practical way to find systematic model failures and curate the training evidence needed to corre…

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Computer Science Preprint PDF DOI

POLAR-PIC: A Holistic Framework for Matrixized PIC with Co-Designed Compute, Layout, and Communication

Yizhuo Rao, Xingjian Cui, Shangzhi Pang, Jiabin Xie, Guangnan Feng, Jinhui Wei, Ziyan Zhang, Languang Gao, Zhenyu Wang, Zhiguang Chen, Yutong Lu · 2026

Particle-in-Cell (PIC) simulations are fundamental to plasma physics but often suffer from limited scalability due to particle-grid interaction bottlenecks and particle redistribution costs. Specifica…

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