no code implementations • 16 Apr 2024 • Joshua Melton, Shannon Reid, Gabriel Terejanu, Siddharth Krishnan
We discuss the need for integrating nuanced understanding from social science with the scalability of computational methods to better understand how polarization on social media occurs for divisive issues such as climate change and gun control.
no code implementations • 4 Jan 2023 • Jawad Chowdhury, Rezaur Rashid, Gabriel Terejanu
The goal of the paper is to study the impact of expert knowledge on causal relations in the form of additional constraints used in the formulation of the nonparametric NOTEARS.
no code implementations • 4 Jan 2023 • Jeremy Shen, Jawad Chowdhury, Sourav Banerjee, Gabriel Terejanu
A new approach is introduced to classify faults in rotating machinery based on the total energy signature estimated from sensor measurements.
no code implementations • 8 Nov 2022 • Rezaur Rashid, Jawad Chowdhury, Gabriel Terejanu
Causal structure learning from observational data remains a non-trivial task due to various factors such as finite sampling, unobserved confounding factors, and measurement errors.
no code implementations • 12 Feb 2020 • Gabriel Terejanu, Jawad Chowdhury, Rezaur Rashid, Asif Chowdhury
The vast majority of research on explainability focuses on post-explainability rather than explainable modeling.
no code implementations • 21 Oct 2019 • Asif J. Chowdhury, Gabriel Terejanu
The main innovations include the use of Bayesian optimization to reach the high probability region quickly, emulating the target distribution using Gaussian processes (GP), and using Laplace approximation of the GP to build a proposal distribution that captures the underlying correlation better.
no code implementations • 1 Oct 2019 • Asif J. Chowdhury, Wenqiang Yang, Kareem E. Abdelfatah, Mehdi Zare, Andreas Heyden, Gabriel Terejanu
Our investigations also included the case when the species data used to train the predictive model is of different size relative to the species the model tries to predict - an extrapolation in the data space which is typically difficult with regular machine learning models.
no code implementations • 23 Dec 2017 • Chao Chen, Xiao Lin, Gabriel Terejanu
In this study, we propose an approximate estimation of the weights uncertainty using Ensemble Kalman Filter, which is easily scalable to a large number of weights.
no code implementations • 8 Aug 2017 • Xiao Lin, Gabriel Terejanu
Real-time nonlinear Bayesian filtering algorithms are overwhelmed by data volume, velocity and increasing complexity of computational models.
no code implementations • 1 Mar 2017 • Xiao Lin, Asif Chowdhury, Xiaofan Wang, Gabriel Terejanu
Then, sensors are placed where highest mutual information (lower bound) is achieved and QoI is inferred via Bayes rule given sensor measurements.
no code implementations • 9 Dec 2016 • Kareem Abdelfatah, Junshu Bao, Gabriel Terejanu
A network of independently trained Gaussian processes (StackedGP) is introduced to obtain predictions of quantities of interest with quantified uncertainties.