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The computing continuum introduces new challenges for access control due to its dynamic, distributed, and heterogeneous nature. In this paper, we propose a Zero-Trust (ZT) access control solution that leverages decentralized identification…

This work aims to provide a more secure access control in Hyperledger Fabric blockchain by combining multiple ID's, attributes, and policies with the components that regulate access control. The access control system currently used by…

Cryptography and Security · Computer Science 2022-07-05 Daan Gordijn , Roland Kromes , Thanassis Giannetsos , Kaitai Liang

Association rules express implication formed relations among attributes in databases of itemsets. The apriori algorithm is presented, the basis for most association rule mining algorithms. It works by pruning away rules that need not be…

Databases · Computer Science 2019-07-24 Niels Mündler

Feature selection plays a critical role in biomedical data mining, driven by increasing feature dimensionality in target problems and growing interest in advanced but computationally expensive methodologies able to model complex…

Data Structures and Algorithms · Computer Science 2018-04-04 Ryan J. Urbanowicz , Melissa Meeker , William LaCava , Randal S. Olson , Jason H. Moore

Developing simple and expressive access controls -- interfaces to specify policies that define who should have access to resources and under what circumstances -- is a longstanding challenge in usable security. We present Sketch-based…

Human-Computer Interaction · Computer Science 2026-05-12 Kyzyl Monteiro , Sauvik Das

Basic role based access control [RBAC] provides a mechanism for segregating access privileges based upon a user's hierarchical roles within an organization. This model doesn't scale well when there is tight integration of multiple…

Cryptography and Security · Computer Science 2007-05-23 Jonathan K. Adams , Basheer N. Bristow

The increasing reliance on human preference feedback to judge AI-generated pseudo labels has created a pressing need for principled, budget-conscious data acquisition strategies. We address the crucial question of how to optimally allocate…

Machine Learning · Statistics 2026-02-13 Zihan Dong , Xiaotian Hou , Ruijia Wu , Linjun Zhang

Administrative Role Based Access Control (ARBAC) models specify how to manage user-role assignments (URA), permission-role assignments (PRA), and role-role assignments (RRA). Many approaches have been proposed in the literature for URA,…

Cryptography and Security · Computer Science 2018-12-27 Jiwan Ninglekhu , Ram Krishnan

Despite recent advances in face recognition, robust performance remains challenging under large variations in age, pose, and occlusion. A common strategy to address these issues is to guide representation learning with auxiliary supervision…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Ana Dias , João Ribeiro Pinto , Hugo Proença , João C. Neves

The exploration problem is one of the main challenges in deep reinforcement learning (RL). Recent promising works tried to handle the problem with population-based methods, which collect samples with diverse behaviors derived from a…

Machine Learning · Computer Science 2025-10-28 Jiajun Fan , Yuzheng Zhuang , Yuecheng Liu , Jianye Hao , Bin Wang , Jiangcheng Zhu , Hao Wang , Shu-Tao Xia

This paper addresses the critical challenge of access control in modern supply chains, which operate across multiple independent and competing organizations. Existing access control is static and centralized, unable to adapt to insider…

Cryptography and Security · Computer Science 2026-02-10 Sadegh Sohani , Salar Ghazi , Farnaz Kamranfar , Sahar Pilehvar Moakhar , Mohammad Allahbakhsh , Haleh Amintoosi , Kaiwen Zhang

With the growing size of data sets, feature selection becomes increasingly important. Taking interactions of original features into consideration will lead to extremely high dimension, especially when the features are categorical and…

Databases · Computer Science 2021-04-13 Qiuqiang Lin , Chuanhou Gao

The emergence of Large Language Models (LLMs) has significantly advanced solutions across various domains, from political science to software development. However, these models are constrained by their training data, which is static and…

Artificial Intelligence · Computer Science 2025-09-16 Aadil Gani Ganie

Reinforcement learning (RL) is a central problem in artificial intelligence. This problem consists of defining artificial agents that can learn optimal behaviour by interacting with an environment -- where the optimal behaviour is defined…

Role-Based Access Control (RBAC) is a popular model which maps roles to access permissions for resources and then roles to the users to provide access control. Role-Based Encryption (RBE) is a cryptographic form of RBAC model that…

Cryptography and Security · Computer Science 2025-04-17 Nazatul Haque Sultan , Vijay Varadharajan , Lan Zhou , Ferdous Ahmed Barbhuiya

Traditional authorization policies are user-centric, in the sense that authorization is defined, ultimately, in terms of user identities. We believe that this user-centric approach is inappropriate for many applications, and that what…

Cryptography and Security · Computer Science 2014-06-20 Jason Crampton , James Sellwood

Enabling robotic manipulation that generalizes to out-of-distribution scenes is a crucial step toward open-world embodied intelligence. For human beings, this ability is rooted in the understanding of semantic correspondence among objects,…

Robotics · Computer Science 2024-01-17 Yuanchen Ju , Kaizhe Hu , Guowei Zhang , Gu Zhang , Mingrun Jiang , Huazhe Xu

Many of the challenges facing today's reinforcement learning (RL) algorithms, such as robustness, generalization, transfer, and computational efficiency are closely related to compression. Prior work has convincingly argued why minimizing…

Machine Learning · Computer Science 2021-09-08 Benjamin Eysenbach , Ruslan Salakhutdinov , Sergey Levine

The tasks that an agent will need to solve often are not known during training. However, if the agent knows which properties of the environment are important then, after learning how its actions affect those properties, it may be able to…

Artificial Intelligence · Computer Science 2019-04-29 Amy Zhang , Adam Lerer , Sainbayar Sukhbaatar , Rob Fergus , Arthur Szlam

Data encryption limits the power and efficiency of queries. Direct processing of encrypted data should ideally be possible to avoid the need for data decryption, processing, and re-encryption. It is vital to keep the data searchable and…

Cryptography and Security · Computer Science 2022-10-03 Maryam Almarwani , Boris Konev , Alexei Lisitsa
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