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One-time login process in conventional authentication systems does not guarantee that the identified user is the actual user throughout the session. However, it is necessary to re-verify the user identity periodically throughout a login…

Cryptography and Security · Computer Science 2018-03-07 Abbas Acar , Hidayet Aksu , A. Selcuk Uluagac , Kemal Akkaya

Designing an efficient protocol for avoiding the threat of recording based attack in presence of a powerful eavesdropper remains a challenge for more than two decades. During authentication, the absence of any secure link between the prover…

Cryptography and Security · Computer Science 2017-05-31 Nilesh Chakraborty , Samrat Mondal

We introduce a new problem, the Online Selective Anomaly Detection (OSAD), to model a specific scenario emerging from research in sleep science. Scientists have segmented sleep into several stages and stage two is characterized by two…

Machine Learning · Computer Science 2014-03-04 Tahereh Babaie , Sanjay Chawla , Romesh Abeysuriya

This paper presents a detection algorithm for sensor attacks and a resilient state estimation scheme for a class of uniformly observable nonlinear systems. An adversary is supposed to corrupt a subset of sensors with the possibly unbounded…

Systems and Control · Computer Science 2021-01-11 Junsoo Kim , Chanhwa Lee , Hyungbo Shim , Yongsoon Eun , Jin Heon Seo

Tracking multiple moving objects of interest (OOI) with multiple robot systems (MRS) has been addressed by active sensing that maintains a shared belief of OOIs and plans the motion of robots to maximize the information quality. Mobility of…

Robotics · Computer Science 2023-04-25 Tianqi Li , Lucas W. Krakow , Swaminathan Gopalswamy

Recent year has brought considerable advancements in Electric Vehicles (EVs) and associated infrastructures/communications. Intrusion Detection Systems (IDS) are widely deployed for anomaly detection in such critical infrastructures. This…

Recent latent-space monitoring techniques have shown promise as defenses against LLM attacks. These defenses act as scanners that seek to detect harmful activations before they lead to undesirable actions. This prompts the question: Can…

Multi-Object Tracking (MOT) is a crucial computer vision task that aims to predict the bounding boxes and identities of objects simultaneously. While state-of-the-art methods have made remarkable progress by jointly optimizing the…

Computer Vision and Pattern Recognition · Computer Science 2023-08-31 Yukun Su , Ruizhou Sun , Xin Shu , Yu Zhang , Qingyao Wu

Observational models make tractable the analysis of information flow properties by providing an abstraction of side channels. We introduce a methodology and a tool, Scam-V, to validate observational models for modern computer architectures.…

Cryptography and Security · Computer Science 2020-05-12 Hamed Nemati , Pablo Buiras , Andreas Lindner , Roberto Guanciale , Swen Jacobs

In the astronomical observation field, determining the allocation of observation resources of the telescope array and planning follow-up observations for targets of opportunity (ToOs) are indispensable components of astronomical scientific…

Artificial Intelligence · Computer Science 2025-02-18 Yajie Zhang , Ce Yu , Chao Sun , Jizeng Wei , Junhan Ju , Shanjiang Tang

Retailers have long been searching for ways to effectively understand their customers' behaviour in order to provide a smooth and pleasant shopping experience that attracts more customers everyday and maximises their revenue, consequently.…

Computer Vision and Pattern Recognition · Computer Science 2019-06-27 Mohammad Mahdi Kazemi Moghaddam , Ehsan Abbasnejad , Javen Shi

Existing side-channel analysis techniques require a leakage model, in the form of a prior knowledge or a set of training data, to establish a relationship between the secret data and the measurements. We introduce side-channel analysis with…

Cryptography and Security · Computer Science 2020-06-09 Keyvan Ramezanpour , Paul Ampadu , William Diehl

Data confidentiality is becoming a significant concern, especially in the cloud computing era. Memory access patterns have been demonstrated to leak critical information such as security keys and a program's spatial and temporal…

Cryptography and Security · Computer Science 2022-07-01 Rachit Rajat , Yongqin Wang , Murali Annavaram

Side-channel information leakage is a known limitation of SGX. Researchers have demonstrated that secret-dependent information can be extracted from enclave execution through page-fault access patterns. Consequently, various recent research…

Cryptography and Security · Computer Science 2017-02-27 Ferdinand Brasser , Urs Müller , Alexandra Dmitrienko , Kari Kostiainen , Srdjan Capkun , Ahmad-Reza Sadeghi

Most current approaches for protecting privacy in machine learning (ML) assume that models exist in a vacuum. Yet, in reality, these models are part of larger systems that include components for training data filtering, output monitoring,…

This work presents a novel framework for random access in crowded scenarios of multiple-input multiple-output(MIMO) systems. A multi-antenna base station (BS) and multiple single-antenna users are considered in these systems. A huge portion…

Information Theory · Computer Science 2022-04-27 Abolghasem Afshar , Vahid Tabataba Vakili , Sajad Daei

Federated Learning (FL) has garnered significant attention for its potential to protect user privacy while enhancing model training efficiency. For that reason, FL has found its use in various domains, from healthcare to industrial…

Cryptography and Security · Computer Science 2024-06-05 Tre' R. Jeter , Truc Nguyen , Raed Alharbi , My T. Thai

Recent studies have shown how motion-based biometrics can be used as a form of user authentication and identification without requiring any human cooperation. This category of behavioural biometrics deals with the features we learn in our…

Machine Learning · Computer Science 2021-10-08 Akriti Verma , Valeh Moghaddam , Adnan Anwar

Object detection models, widely used in security-critical applications, are vulnerable to backdoor attacks that cause targeted misclassifications when triggered by specific patterns. Existing backdoor defense techniques, primarily designed…

Computer Vision and Pattern Recognition · Computer Science 2024-10-01 Xianda Zhang , Siyuan Liang

Large language models can follow complex instructions in a single turn, yet over long multi-turn interactions they often lose the thread of instructions, persona, and rules. This degradation has been measured behaviorally but not…

Artificial Intelligence · Computer Science 2026-05-14 Vardhan Dongre , Joseph Hsieh , Viet Dac Lai , Seunghyun Yoon , Trung Bui , Dilek Hakkani-Tür
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