A multiresolution watermark for digital images

XG Xia, CG Boncelet, GR Arce - Proceedings of international …, 1997 - ieeexplore.ieee.org
We introduce a new multiresolution watermarking method for digital images. The method is
based on the discrete wavelet transform (DWT). Pseudo-random codes are added to the …

If you do not care about it, sell it: Trading location privacy in mobile crowd sensing

W Jin, M Xiao, M Li, L Guo - IEEE INFOCOM 2019-IEEE …, 2019 - ieeexplore.ieee.org
Mobile crowd sensing (MCS) is a technique where sensing tasks are outsourced to a crowd
of mobile users. Since most of sensing tasks are location-dependent, workers are required …

Privacy-preserving data aggregation for mobile crowdsensing with externality: An auction approach

M Zhang, L Yang, S He, M Li… - IEEE/ACM Transactions …, 2021 - ieeexplore.ieee.org
We develop an auction framework for privacy-preserving data aggregation in mobile
crowdsensing, where the platform plays the role as an auctioneer to recruit workers for …

Theseus: Incentivizing truth discovery in mobile crowd sensing systems

H Jin, L Su, K Nahrstedt - Proceedings of the 18th ACM International …, 2017 - dl.acm.org
The recent proliferation of human-carried mobile devices has given rise to mobile crowd
sensing (MCS) systems that outsource sensory data collection to the public crowd. In order …

REAP: An efficient incentive mechanism for reconciling aggregation accuracy and individual privacy in crowdsensing

Z Zhang, S He, J Chen, J Zhang - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
Incentive mechanism plays a critical role in privacy-aware crowdsensing. Most previous
studies assume a trustworthy fusion center (FC) in their co-design of incentive mechanism …

Incentivizing truthful data quality for quality-aware mobile data crowdsourcing

X Gong, N Shroff - Proceedings of the Eighteenth ACM International …, 2018 - dl.acm.org
Mobile data crowdsourcing has found a broad range of applications (eg, spectrum sensing,
environmental monitoring) by leveraging the" wisdom" of a potentially large crowd of" …

Making big money from small sensors: Trading time-series data under pufferfish privacy

C Niu, Z Zheng, S Tang, X Gao… - IEEE INFOCOM 2019 …, 2019 - ieeexplore.ieee.org
With the commoditization of personal data, pricing privacy has become an intriguing topic. In
this paper, we study time-series data trading from the perspective of a data broker in data …

ULPT: A user-centric location privacy trading framework for mobile crowd sensing

W Jin, M Xiao, L Guo, L Yang… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Mobile crowd sensing (MCS) arises as a promising data collection paradigm that leverages
the power of ubiquitous mobile devices to acquire rich information regarding their …

Incentive mechanism design for federated learning and unlearning

N Ding, Z Sun, E Wei, R Berry - … and Protocol Design for Mobile Networks …, 2023 - dl.acm.org
To protect users' right to be forgotten in federated learning, federated unlearning aims at
eliminating the impact of leaving users' data on the global learned model. The current …

Data-driven pricing for sensing effort elicitation in mobile crowd sensing systems

H Jin, B He, L Su, K Nahrstedt… - IEEE/ACM Transactions …, 2019 - ieeexplore.ieee.org
The recent proliferation of human-carried mobile devices has given rise to mobile crowd
sensing (MCS) systems that outsource sensory data collection to the public crowd. In order …