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Agents for computer use (ACUs) are an emerging class of systems capable of executing complex tasks on digital devices -- such as desktops, mobile phones, and web platforms -- given instructions in natural language. These agents can automate…

In recent cyber attacks, credential theft has emerged as one of the primary vectors of gaining entry into the system. Once attacker(s) have a foothold in the system, they use various techniques including token manipulation to elevate the…

Cryptography and Security · Computer Science 2022-11-30 Jaimandeep Singh , Chintan Patel , Naveen Kumar Chaudhary

The recent focus and release of pre-trained models have been a key components to several advancements in many fields (e.g. Natural Language Processing and Computer Vision), as a matter of fact, pre-trained models learn disparate latent…

Machine Learning · Computer Science 2025-07-11 Elia Piccoli , Malio Li , Giacomo Carfì , Vincenzo Lomonaco , Davide Bacciu

Flexible front-end technology will become available in future multifunction radar systems to improve adaptability to the operational theatre. A potential concept to utilize this flexibility is to subdivide radar tasks spatially over the…

Signal Processing · Electrical Eng. & Systems 2024-02-28 Pepijn B. Cox , Wim L. van Rossum

Under the Dynamic Resource Allocation (DRA) model, an administrator has the mission to allocate dynamically a limited budget of resources to the nodes of a network in order to reduce a diffusion process (DP) (e.g. an epidemic). The standard…

Systems and Control · Electrical Eng. & Systems 2019-09-24 Mathilde Fekom , Nicolas Vayatis , Argyris Kalogeratos

In an open information systems paradigm, real-time context-awareness is vital for the success of cooperation, therefore dynamic security attributes of partners should considered in coalition for avoiding security conflicts. Furthermore, the…

Cryptography and Security · Computer Science 2013-05-09 Ziyi Su , Frederique Biennier

Robotic Process Automation (RPA) has emerged as a game-changing technology in data extraction, revolutionizing the way organizations process and analyze large volumes of documents such as invoices, purchase orders, and payment advices. This…

Artificial Intelligence · Computer Science 2024-11-01 Vivek Bhardwaj , Ajit Noonia , Sandeep Chaurasia , Mukesh Kumar , Abdulnaser Rashid , Mohamed Tahar Ben Othman

In this paper, we review the key figures of merit to assess the performance of advanced random access (RA) schemes exploiting physical layer coding, repetitions and collision resolution techniques. We then investigate RA modeling aspects…

Information Theory · Computer Science 2018-01-22 Alberto Mengali , Riccardo De Gaudenzi , Cedomir Stefanovic

Graphical User Interface (GUI) Agents powered by Multimodal Large Language Models (MLLMs) show significant potential for automating tasks. However, they often struggle with long-horizon tasks, leading to frequent failures. Process Reward…

Artificial Intelligence · Computer Science 2025-10-06 Tao Xiong , Xavier Hu , Yurun Chen , Yuhang Liu , Changqiao Wu , Pengzhi Gao , Wei Liu , Jian Luan , Shengyu Zhang

The next generation of radar systems will include advanced digital front-end technology in the apertures allowing for spatially subdividing radar tasks over the array, the so-called split-aperture phased array (SAPA) concept. The goal of…

Signal Processing · Electrical Eng. & Systems 2025-01-31 Pepijn B. Cox , Wim L. van Rossum

Role-playing agents (RPAs) require balancing multiple objectives, such as instruction following, persona consistency, and stylistic fidelity, which are not always perfectly aligned across different dimensions. While prior work has primarily…

Computation and Language · Computer Science 2026-04-23 Chonghua Liao , Ke Wang , Yuchuan Wu , Ruoran Li , Fei Huang , Yongbin Li

Industry 4.0 is driven by demands like shorter time-to-market, mass customization of products, and batch size one production. Reinforcement Learning (RL), a machine learning paradigm shown to possess a great potential in improving and…

Artificial Intelligence · Computer Science 2023-06-05 Georg Schäfer , Reuf Kozlica , Stefan Wegenkittl , Stefan Huber

From ancient water wheels to robotic process automation (RPA), automation technology has evolved throughout history to liberate human beings from arduous tasks. Yet, RPA struggles with tasks needing human-like intelligence, especially in…

Technology advances in areas such as sensors, IoT, and robotics, enable new collaborative applications (e.g., autonomous devices). A primary requirement for such collaborations is to have a secure system which enables information sharing…

Cryptography and Security · Computer Science 2020-11-04 Amani Abu Jabal , Elisa Bertino , Jorge Lobo , Dinesh Verma , Seraphin Calo , Alessandra Russo

Large language models have enabled agentic systems that reason, plan, and interact with tools and environments to accomplish complex tasks. As these agents operate over extended interaction horizons, their effectiveness increasingly depends…

Artificial Intelligence · Computer Science 2026-03-17 Yue Xu , Qian Chen , Zizhan Ma , Dongrui Liu , Wenxuan Wang , Xiting Wang , Li Xiong , Wenjie Wang

Existing medical-agent benchmarks deliver imaging as pre-selected samples, never as an environment the agent must navigate. We introduce ABRA, a radiology-agent benchmark in which the agent operates an OHIF viewer and an Orthanc DICOM…

Computer Vision and Pattern Recognition · Computer Science 2026-05-13 Bulat Maksudov , Vladislav Kurenkov , Kathleen M. Curran , Alessandra Mileo

While pre-trained visual representations have significantly advanced imitation learning, they are often task-agnostic as they remain frozen during policy learning. In this work, we explore leveraging pre-trained text-to-image diffusion…

Computer Vision and Pattern Recognition · Computer Science 2026-04-09 Heeseong Shin , Byeongho Heo , Dongyoon Han , Seungryong Kim , Taekyung Kim

The analysis of hidden channels of information leakage with respect to role-based access control includes monitoring of excessive permissions among users. It is not always possible to completely eliminate redundancy. The problem of ranking…

Cryptography and Security · Computer Science 2019-01-01 S. V. Belim , N. F. Bogachenko , A. N. Kabanov

In a cloud computing environment, access control policy is an effective means of fortification cloud users and cloud resources services against security infringements. Based on analysis of current cloud computing security characteristics,…

Distributed, Parallel, and Cluster Computing · Computer Science 2013-05-14 Sultan Ullah , Zheng Xuefeng , Zhou Feng

User authorization queries in the context of role-based access control have attracted considerable interest in the last 15 years. Such queries are used to determine whether it is possible to allocate a set of roles to a user that enables…

Cryptography and Security · Computer Science 2021-04-14 Jason Crampton , Gregory Gutin , Diptapriyo Majumdar