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Locality-sensitive hashing (LSH) is a fundamental algorithmic technique widely employed in large-scale data processing applications, such as nearest-neighbor search, entity resolution, and clustering. However, its applicability in some…

Information Retrieval · Computer Science 2024-02-01 Runhui Wang , Luyang Kong , Yefan Tao , Andrew Borthwick , Davor Golac , Henrik Johnson , Shadie Hijazi , Dong Deng , Yongfeng Zhang

In this paper, an artificial noise-aided strategy is presented for location-privacy preservation. A novel framework for the reduction of location-privacy leakage is introduced, where structured artificial noise is designed to degrade the…

Signal Processing · Electrical Eng. & Systems 2023-02-20 Jianxiu Li , Urbashi Mitra

Users of location-based services (LBSs) are highly vulnerable to privacy risks since they need to disclose, at least partially, their locations to benefit from these services. One possibility to limit these risks is to obfuscate the…

Cryptography and Security · Computer Science 2018-05-25 Ehab ElSalamouny , Sébastien Gambs

Mobile apps offer significant benefits, but their privacy protections often remain ineffective and confusing for users. While prior work mainly analyzes app privacy vulnerabilities, few approaches help users understand, set, and enforce…

Cryptography and Security · Computer Science 2026-04-28 Tran Thanh Lam Nguyen , Edoardo Di Tullio , Barbara Carminati , Elena Ferrari

RGB camera-based surveillance systems enable human action recognition for public safety and healthcare, yet raise serious privacy concerns. Existing methods rely on post-capture algorithms, which fail to protect privacy during data…

Computer Vision and Pattern Recognition · Computer Science 2026-05-22 Mengyuan Liu , Ziyi Wang , Peiming Li , Junsong Yuan

The popularity of mobile devices and location-based services (LBS) has created great concern regarding the location privacy of their users. Anonymization is a common technique that is often used to protect the location privacy of LBS users.…

Information Theory · Computer Science 2017-01-23 Zarrin Montazeri , Amir Houmansadr , Hossein Pishro-Nik

Voice-enabled interactions provide more human-like experiences in many popular IoT systems. Cloud-based speech analysis services extract useful information from voice input using speech recognition techniques. The voice signal is a rich…

Cryptography and Security · Computer Science 2019-08-13 Ranya Aloufi , Hamed Haddadi , David Boyle

Mobile applications increasingly rely on sensor data to infer user context and deliver personalized experiences. Yet the mechanisms behind this personalization remain opaque to users and researchers alike. This paper presents a sandbox…

Human-Computer Interaction · Computer Science 2025-11-04 Ibrahim Khalilov , Chaoran Chen , Ziang Xiao , Tianshi Li , Toby Jia-Jun Li , Yaxing Yao

Camouflage is primarily context-dependent yet current metrics for camouflaged scenarios overlook this critical factor. Instead, these metrics are originally designed for evaluating general or salient objects, with an inherent assumption of…

Computer Vision and Pattern Recognition · Computer Science 2026-01-27 Chen-Yang Wang , Gepeng Ji , Song Shao , Ming-Ming Cheng , Deng-Ping Fan

Imagine interconnected objects with embedded artificial intelligence (AI), empowered to sense the environment, see it, hear it, touch it, interact with it, and move. As future networks of intelligent objects come to life, tremendous new…

Sensors embedded in mobile smart devices can monitor users' activity with high accuracy to provide a variety of services to end-users ranging from precise geolocation, health monitoring, and handwritten word recognition. However, this…

Cryptography and Security · Computer Science 2022-05-16 Rahat Masood , Wing Yan Cheng , Dinusha Vatsalan , Deepak Mishra , Hassan Jameel Asghar , Mohamed Ali Kaafar

The widespread mobile devices facilitated the emergence of many new applications and services. Among them are location-based services (LBS) that provide services based on user's location. Several techniques have been presented to enable LBS…

Signal Processing · Electrical Eng. & Systems 2018-11-30 Peyman Yazdanian , Vahid Pourahmadi

App usage prediction is important for smartphone system optimization to enhance user experience. Existing modeling approaches utilize historical app usage logs along with a wide range of semantic information to predict the app usage;…

Machine Learning · Computer Science 2021-08-27 Yonchanok Khaokaew , Mohammad Saiedur Rahaman , Ryen W. White , Flora D. Salim

Modern organizations increasingly face cybersecurity incidents driven by human behaviour rather than technical failures. To address this, we propose a conceptual security framework that integrates a hybrid Convolutional Neural Network-Long…

Cryptography and Security · Computer Science 2026-02-24 Duy Anh Ta , Farnaz Farid , Farhad Ahamed , Ala Al-Areqi , Robert Beutel , Tamara Watson , Alana Maurushat

As language models evolve into autonomous agents that act and communicate on behalf of users, ensuring safety in multi-agent ecosystems becomes a central challenge. Interactions between personal assistants and external service providers…

Cryptography and Security · Computer Science 2025-11-10 Amr Gomaa , Ahmed Salem , Sahar Abdelnabi

We present a novel framework for estimating accident-prone regions in everyday indoor scenes, aimed at improving real-time risk awareness in service robots operating in human-centric environments. As robots become integrated into daily…

Behavioral sensing technologies are rapidly evolving across a range of well-being applications. Despite its potential, concerns about the responsible use of such technology are escalating. In response, recent research within the sensing…

Human-Computer Interaction · Computer Science 2024-05-07 Han Zhang , Vedant Das Swain , Leijie Wang , Nan Gao , Yilun Sheng , Xuhai Xu , Flora D. Salim , Koustuv Saha , Anind K. Dey , Jennifer Mankoff

There is extensive interest in metric learning methods for image retrieval. Many metric learning loss functions focus on learning a correct ranking of training samples, but strongly overfit semantically inconsistent labels and require a…

Machine Learning · Computer Science 2023-06-05 Christopher Liao , Theodoros Tsiligkaridis , Brian Kulis

In this work, we investigate the effectiveness of deep-learning-based password guessing models for targeted attacks on human-chosen passwords. In recent years, service providers have increased the level of security of users'passwords. This…

Cryptography and Security · Computer Science 2023-06-19 Etienne Salimbeni , Nina Mainusch , Dario Pasquini

Recent advancements in generative large language models (LLMs) have enabled wider applicability, accessibility, and flexibility. However, their reliability and trustworthiness are still in doubt, especially for concerns regarding…

Computation and Language · Computer Science 2025-05-26 Haoran Li , Wenbin Hu , Huihao Jing , Yulin Chen , Qi Hu , Sirui Han , Tianshu Chu , Peizhao Hu , Yangqiu Song