no code implementations • 11 May 2022 • Dimitris Stripelis, Umang Gupta, Hamza Saleem, Nikhil Dhinagar, Tanmay Ghai, Rafael Sanchez, Chrysovalantis Anastasiou, Armaghan Asghar, Greg Ver Steeg, Srivatsan Ravi, Muhammad Naveed, Paul M. Thompson, Jose Luis Ambite
Specifically, we investigate training neural models to classify Alzheimer's disease, and estimate Brain Age, from magnetic resonance imaging datasets distributed across multiple sites, including heterogeneous environments where sites have different amounts of data, statistical distributions, and computational capabilities.
no code implementations • 2 May 2022 • Dimitris Stripelis, Marcin Abram, Jose Luis Ambite
Here, we focus on the latter, the susceptibility of federated learning to various data corruption attacks.
no code implementations • 26 Apr 2022 • Dimitris Stripelis, Umang Gupta, Greg Ver Steeg, Jose Luis Ambite
Second, the models are incrementally constrained to a smaller set of parameters, which facilitates alignment/merging of the local models and improved learning performance at high sparsification rates.
no code implementations • 7 Aug 2021 • Dimitris Stripelis, Hamza Saleem, Tanmay Ghai, Nikhil Dhinagar, Umang Gupta, Chrysovalantis Anastasiou, Greg Ver Steeg, Srivatsan Ravi, Muhammad Naveed, Paul M. Thompson, Jose Luis Ambite
Federated learning (FL) enables distributed computation of machine learning models over various disparate, remote data sources, without requiring to transfer any individual data to a centralized location.
no code implementations • 16 Feb 2021 • Dimitris Stripelis, Jose Luis Ambite, Pradeep Lam, Paul Thompson
Federated Learning is a promising approach to learn a joint model over data silos.
no code implementations • 4 Feb 2021 • Dimitris Stripelis, Jose Luis Ambite
There are situations where data relevant to a machine learning problem are distributed among multiple locations that cannot share the data due to regulatory, competitiveness, or privacy reasons.
no code implementations • 25 Aug 2020 • Dimitris Stripelis, Jose Luis Ambite
There are situations where data relevant to a machine learning problem are distributed among multiple locations that cannot share the data due to regulatory, competitiveness, or privacy reasons.
no code implementations • 19 Nov 2018 • Shobeir Fakhraei, Joel Mathew, Jose Luis Ambite
An important task in this process is entity normalization, which consists of mapping noisy entity mentions in text to canonical entities in well-known reference sets.
no code implementations • 16 Jan 2016 • Mohsen Taheriyan, Craig A. Knoblock, Pedro Szekely, Jose Luis Ambite
This model represents the semantics of the new source in terms of the concepts and relationships defined by the domain ontology.