Imperial College London


Faculty of EngineeringDyson School of Design Engineering

Senior Lecturer



+44 (0)20 7594 2584h.haddadi Website




Dyson BuildingSouth Kensington Campus






BibTex format

author = {Servia-Rodriguez, S and Wang, L and Zhao, JR and Mortier, R and Haddadi, H},
doi = {10.1109/IoTDI.2018.00024},
journal = {Proceedings - ACM/IEEE International Conference on Internet of Things Design and Implementation, IoTDI 2018},
pages = {153--164},
title = {Privacy-preserving personal model training},
url = {},
year = {2018}

RIS format (EndNote, RefMan)

AB - © 2018 IEEE. Many current Internet services rely on inferences from models trained on user data. Commonly, both the training and inference tasks are carried out using cloud resources fed by personal data collected at scale from users. Holding and using such large collections of personal data in the cloud creates privacy risks to the data subjects, but is currently required for users to benefit from such services. We explore how to provide for model training and inference in a system where computation is pushed to the data in preference to moving data to the cloud, obviating many current privacy risks. Specifically, we take an initial model learnt from a small set of users and retrain it locally using data from a single user. We evaluate on two tasks: one supervised learning task, using a neural network to recognise users' current activity from accelerometer traces; and one unsupervised learning task, identifying topics in a large set of documents. In both cases the accuracy is improved. We also analyse the robustness of our approach against adversarial attacks, as well as its feasibility by presenting a performance evaluation on a representative resource-constrained device (a Raspberry Pi).
AU - Servia-Rodriguez,S
AU - Wang,L
AU - Zhao,JR
AU - Mortier,R
AU - Haddadi,H
DO - 10.1109/IoTDI.2018.00024
EP - 164
PY - 2018///
SP - 153
TI - Privacy-preserving personal model training
T2 - Proceedings - ACM/IEEE International Conference on Internet of Things Design and Implementation, IoTDI 2018
UR -
ER -