1 code implementation • 18 Feb 2025 • Kexin Fan, Alexander Capstick, Ramin Nilforooshan, Payam Barnaghi
The current research focuses on improving the performance of previous models, particularly by refining the Multilayer Perceptron (MLP), to better handle variations in home environments and improve sex fairness in predictions by making use of concepts from multitask learning.
no code implementations • 13 Feb 2025 • Jin Cui, Alexander Capstick, Payam Barnaghi, Gregory Scott
In remote healthcare monitoring, time series representation learning reveals critical patient behavior patterns from high-frequency data.
no code implementations • 30 Jan 2025 • Maria R. Lima, Alexander Capstick, Fatemeh Geranmayeh, Ramin Nilforooshan, Maja Matarić, Ravi Vaidyanathan, Payam Barnaghi
For ADRD classification, a Random Forest applied to lexical features achieved a mean sensitivity of 69. 4% (95% confidence interval (CI) = 66. 4-72. 5) and specificity of 83. 3% (78. 0-88. 7).
1 code implementation • 26 Nov 2024 • Alexander Capstick, Rahul G. Krishnan, Payam Barnaghi
We find that AutoElicit yields priors that can substantially reduce error over uninformative priors, using fewer labels, and consistently outperform in-context learning.
no code implementations • 25 Jun 2024 • Yu Chen, Tianyu Cui, Alexander Capstick, Nan Fletcher-Loyd, Payam Barnaghi
This method enhances the regional explainability of machine learning models and offers wider applicability compared to existing methods.
1 code implementation • 7 May 2024 • Alexander Capstick, Tianyu Cui, Yu Chen, Payam Barnaghi
Time-series representation learning is a key area of research for remote healthcare monitoring applications.
no code implementations • 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.
no code implementations • 6 Dec 2022 • Alexander Capstick, Francesca Palermo, Tianyu Cui, Payam Barnaghi
When data is generated by multiple sources, conventional training methods update models assuming equal reliability for each source and do not consider their individual data quality.
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 • 29 Sep 2021 • Alexander Capstick, Samaneh Kouchaki, Mazdak Ghajari, David J. Sharp, Payam M. Barnaghi
Recurrent deep learning methods have a larger capacity for learning complex representations in time series data.