no code implementations • 12 Mar 2024 • Yushan Huang, Ranya Aloufi, Xavier Cadet, Yuchen Zhao, Payam Barnaghi, Hamed Haddadi
On MCUs, compared to the standard full model inference, MicroT can save up to about 29. 13% in energy consumption.
no code implementations • 29 Nov 2023 • Yu Chen, Nivedita Bijlani, Samaneh Kouchaki, Payam Barnaghi
Understanding the meaning of latent states is crucial for interpreting machine learning models, assuming they capture underlying patterns.
1 code implementation • 20 Jul 2023 • Nan Fletcher-Lloyd, Alina-Irina Serban, Magdalena Kolanko, David Wingfield, Danielle Wilson, Ramin Nilforooshan, Payam Barnaghi, Eyal Soreq
Using the COVID-19 pandemic as a natural experiment, we conducted linear mixed-effects modelling to examine changes in mean kitchen activity within a subset of 21 households of PLWD that were continuously monitored for 499 days.
1 code implementation • 22 Feb 2023 • Yushan Huang, Yuchen Zhao, Alexander Capstick, Francesca Palermo, Hamed Haddadi, Payam Barnaghi
For applications with stochastic state transitions, features are developed based on Shannon's entropy of Markov chains, entropy rates of Markov chains, entropy production of Markov chains, and von Neumann entropy of Markov chains.
1 code implementation • 6 Dec 2022 • Alexander Capstick, Francesca Palermo, Payam Barnaghi
When data is streaming from multiple sources, conventional training methods update model weights often assuming the same level of reliability for each source; that is: a model does not consider data quality of each source during training.
no code implementations • 4 Oct 2022 • Yushan Huang, Yuchen Zhao, Hamed Haddadi, Payam Barnaghi
The study uses Internet of Things (IoT) enabled solutions for continuous monitoring of in-home activity, sleep, and physiology to develop care and early intervention solutions to support people living with dementia (PLWD) in their own homes.
no code implementations • 19 Oct 2021 • Francesca Palermo, Honglin Li, Alexander Capstick, Nan Fletcher-Lloyd, Yuchen Zhao, Samaneh Kouchaki, Ramin Nilforooshan, David Sharp, Payam Barnaghi
Agitation is one of the neuropsychiatric symptoms with high prevalence in dementia which can negatively impact the Activities of Daily Living (ADL) and the independence of individuals.
no code implementations • 10 Sep 2021 • Yuchen Zhao, Payam Barnaghi, Hamed Haddadi
Federated learning is proposed as an alternative to centralized machine learning since its client-server structure provides better privacy protection and scalability in real-world applications.
1 code implementation • 14 May 2021 • Roonak Rezvani, Samaneh Kouchaki, Ramin Nilforooshan, David J. Sharp, Payam Barnaghi
We train and test the proposed model on a dataset from a clinical study.
no code implementations • 25 Mar 2021 • Qingju Liu, Mark Kenny, Ramin Nilforooshan, Payam Barnaghi
We present an IoT-based intelligent bed sensor system that collects and analyses respiration-associated signals for unobtrusive monitoring in the home, hospitals and care units.
1 code implementation • 3 Mar 2021 • Narges Pourshahrokhi, Samaneh Kouchaki, Kord M. Kober, Christine Miaskowski, Payam Barnaghi
A Bayesian approach to impute missing values and creating augmented samples in high dimensional healthcare data is proposed in this work.
1 code implementation • 18 Jan 2021 • Honglin Li, Roonak Rezvani, Magdalena Anita Kolanko, David J. Sharp, Maitreyee Wairagkar, Ravi Vaidyanathan, Ramin Nilforooshan, Payam Barnaghi
We have developed an integrated platform to collect in-home sensor data and performed an observational study to apply machine learning models for agitation and UTI risk analysis.
no code implementations • 8 Dec 2020 • Maitreyee Wairagkar, Maria R Lima, Daniel Bazo, Richard Craig, Hugo Weissbart, Appolinaire C Etoundi, Tobias Reichenbach, Prashant Iyenger, Sneh Vaswani, Christopher James, Payam Barnaghi, Chris Melhuish, Ravi Vaidyanathan
The hybrid-face robot concept has been modified, implemented, and released in the commercial IoT robotic platform Miko (My Companion), an affective robot with facial and conversational features currently in use for human-robot interaction in children by Emotix Inc. We demonstrate that human EEG responses to Miko emotions are comparative to neurophysiological responses for actual human facial recognition.
Electroencephalogram (EEG) Robotics
no code implementations • 27 Nov 2020 • Honglin Li, Magdalena Anita Kolanko, Shirin Enshaeifar, Severin Skillman, Andreas Markides, Mark Kenny, Eyal Soreq, Samaneh Kouchaki, Kirsten Jensen, Loren Cameron, Michael Crone, Paul Freemont, Helen Rostill, David J. Sharp, Ramin Nilforooshan, Payam Barnaghi
Machine learning techniques combined with in-home monitoring technologies provide a unique opportunity to automate diagnosis and early detection of adverse health conditions in long-term conditions such as dementia.
no code implementations • 2 Nov 2020 • Yuchen Zhao, Hanyang Liu, Honglin Li, Payam Barnaghi, Hamed Haddadi
In this paper, we propose an activity recognition system that uses semi-supervised federated learning, wherein clients conduct unsupervised learning on autoencoders with unlabelled local data to learn general representations, and a cloud server conducts supervised learning on an activity classifier with labelled data.
no code implementations • 19 Oct 2020 • Honglin Li, Yifei Fan, Frieder Ganz, Anthony Yezzi, Payam Barnaghi
The robustness of neural networks is challenged by adversarial examples that contain almost imperceptible perturbations to inputs, which mislead a classifier to incorrect outputs in high confidence.
no code implementations • 8 May 2020 • Honglin Li, Payam Barnaghi, Shirin Enshaeifar, Frieder Ganz
The changes in goals or data are referred to as new tasks in a continual learning model.
no code implementations • 9 Oct 2019 • Honglin Li, Payam Barnaghi, Shirin Enshaeifar, Frieder Ganz
The catastrophic forgetting is an inevitable problem in continual learning models for dynamic environments.
no code implementations • 20 May 2019 • Honglin Li, Shirin Enshaeifar, Frieder Ganz, Payam Barnaghi
The results show that our approach enables the model to continually learn and adapt to the new changes without forgetting the previously learned tasks.
no code implementations • 6 Nov 2018 • Honglin Li, Frieder Ganz, Shirin Enshaeifar, Payam Barnaghi
Learning in a non-stationary environment is an inevitable problem when applying machine learning algorithm to real world environment.
no code implementations • 17 Feb 2018 • Mohammad Saeid Mahdavinejad, Mohammadreza Rezvan, Mohammadamin Barekatain, Peyman Adibi, Payam Barnaghi, Amit P. Sheth
This article assesses the different machine learning methods that deal with the challenges in IoT data by considering smart cities as the main use case.
no code implementations • 26 Oct 2017 • Alireza Ahrabian, Shirin Enshaeifar, Clive Cheong-Took, Payam Barnaghi
This work addresses the problem of segmentation in time series data with respect to a statistical parameter of interest in Bayesian models.
no code implementations • 28 May 2017 • Nazli Farajidavar, Sefki Kolozali, Payam Barnaghi
Cities have been a thriving place for citizens over the centuries due to their complex infrastructure.