CKH: Causal Knowledge Hierarchy for Estimating Structural Causal Models from Data and Priors

no code implementations • 28 Apr 2022 • Riddhiman Adib, Md Mobasshir Arshed Naved, Chih-Hao Fang, Md Osman Gani, Ananth Grama, Paul Griffin, Sheikh Iqbal Ahamed, Mohammad Adibuzzaman

Using CKH, we present a methodological framework for encoding causal priors from various information sources and combining them to derive an SCM.

Identifying and Analyzing Sepsis States: A Retrospective Study on Patients with Sepsis in ICUs

1 code implementation • 21 Sep 2020 • Chih-Hao Fang, Vikram Ravindra, Salma Akhter, Mohammad Adibuzzaman, Paul Griffin, Shankar Subramaniam, Ananth Grama

Sepsis accounts for more than 50% of hospital deaths, and the associated cost ranks the highest among hospital admissions in the US.

Newton-ADMM: A Distributed GPU-Accelerated Optimizer for Multiclass Classification Problems

1 code implementation • 18 Jul 2018 • Chih-Hao Fang, Sudhir B. Kylasa, Fred Roosta, Michael W. Mahoney, Ananth Grama

First-order optimization methods, such as stochastic gradient descent (SGD) and its variants, are widely used in machine learning applications due to their simplicity and low per-iteration costs.

General Classification