Search Results for author: Rishikesan Kamaleswaran

Found 12 papers, 1 papers with code

Social Media as a Sensor: Analyzing Twitter Data for Breast Cancer Medication Effects Using Natural Language Processing

no code implementations26 Feb 2024 Seibi Kobara, Alireza Rafiei, Masoud Nateghi, Selen Bozkurt, Rishikesan Kamaleswaran, Abeed Sarker

This analysis highlighted not only the utility of NLP techniques in unstructured social media data to identify self-reported breast cancer posts, medication usage patterns, and treatment side effects but also the richness of social data on such clinical questions.

Robust Meta-Model for Predicting the Need for Blood Transfusion in Non-traumatic ICU Patients

no code implementations1 Jan 2024 Alireza Rafiei, Ronald Moore, Tilendra Choudhary, Curtis Marshall, Geoffrey Smith, John D. Roback, Ravi M. Patel, Cassandra D. Josephson, Rishikesan Kamaleswaran

This study aims to develop an advanced machine learning-based model to predict the probability of transfusion necessity over the next 24 hours for a diverse range of non-traumatic ICU patients.

Detecting algorithmic bias in medical AI-models

no code implementations5 Dec 2023 Jeffrey Smith, Andre Holder, Rishikesan Kamaleswaran, Yao Xie

With the growing prevalence of machine learning and artificial intelligence-based medical decision support systems, it is equally important to ensure that these systems provide patient outcomes in a fair and equitable fashion.

Fairness

Mixed-Integer Projections for Automated Data Correction of EMRs Improve Predictions of Sepsis among Hospitalized Patients

no code implementations21 Aug 2023 Mehak Arora, Hassan Mortagy, Nathan Dwarshius, Swati Gupta, Andre L. Holder, Rishikesan Kamaleswaran

In particular, by using high-dimensional mixed-integer programs that capture physiological and biological constraints on patient vitals and lab values, we can harness the power of mathematical "projections" for the EMR data to correct patient data.

Meta-learning in healthcare: A survey

no code implementations5 Aug 2023 Alireza Rafiei, Ronald Moore, Sina Jahromi, Farshid Hajati, Rishikesan Kamaleswaran

We then divide the employed meta-learning approaches in the healthcare domain into two main categories of multi/single-task learning and many/few-shot learning and survey the studies.

Few-Shot Learning

Transfer Learning for Causal Effect Estimation

no code implementations16 May 2023 Song Wei, Hanyu Zhang, Ronald Moore, Rishikesan Kamaleswaran, Yao Xie

We present a Transfer Causal Learning (TCL) framework when target and source domains share the same covariate/feature spaces, aiming to improve causal effect estimation accuracy in limited data.

regression Transfer Learning

Causal Graph Discovery from Self and Mutually Exciting Time Series

no code implementations26 Jan 2023 Song Wei, Yao Xie, Christopher S. Josef, Rishikesan Kamaleswaran

We present a generalized linear structural causal model, coupled with a novel data-adaptive linear regularization, to recover causal directed acyclic graphs (DAGs) from time series.

Causal Discovery Time Series +1

UnfoldML: Cost-Aware and Uncertainty-Based Dynamic 2D Prediction for Multi-Stage Classification

no code implementations26 Oct 2022 Yanbo Xu, Alind Khare, Glenn Matlin, Monish Ramadoss, Rishikesan Kamaleswaran, Chao Zhang, Alexey Tumanov

It achieves within 0. 1% accuracy from the highest-performing multi-class baseline, while saving close to 20X on spatio-temporal cost of inference and earlier (3. 5hrs) disease onset prediction.

Image Classification

Granger Causal Chain Discovery for Sepsis-Associated Derangements via Continuous-Time Hawkes Processes

1 code implementation9 Sep 2022 Song Wei, Yao Xie, Christopher S. Josef, Rishikesan Kamaleswaran

Modern health care systems are conducting continuous, automated surveillance of the electronic medical record (EMR) to identify adverse events with increasing frequency; however, many events such as sepsis do not have elucidated prodromes (i. e., event chains) that can be used to identify and intercept the adverse event early in its course.

Causal Graph Discovery from Self and Mutually Exciting Time Series

no code implementations4 Jun 2021 Song Wei, Yao Xie, Christopher S. Josef, Rishikesan Kamaleswaran

We present a generalized linear structural causal model, coupled with a novel data-adaptive linear regularization, to recover causal directed acyclic graphs (DAGs) from time series.

Causal Discovery feature selection +2

Machine learning predicts early onset of fever from continuous physiological data of critically ill patients

no code implementations14 Sep 2020 Aditya Singh, Akram Mohammed, Lokesh Chinthala, Rishikesan Kamaleswaran

This study aims to develop novel algorithms that can accurately predict fever onset in critically ill patients by applying machine learning technique on continuous physiological data.

BIG-bench Machine Learning Descriptive

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