Search Results for author: Chuizheng Meng

Found 9 papers, 4 papers with code

COSTAR: Improved Temporal Counterfactual Estimation with Self-Supervised Learning

1 code implementation1 Nov 2023 Chuizheng Meng, Yihe Dong, Sercan Ö. Arik, Yan Liu, Tomas Pfister

Estimation of temporal counterfactual outcomes from observed history is crucial for decision-making in many domains such as healthcare and e-commerce, particularly when randomized controlled trials (RCTs) suffer from high cost or impracticality.

counterfactual Decision Making +2

Estimating Treatment Effects from Irregular Time Series Observations with Hidden Confounders

no code implementations4 Mar 2023 Defu Cao, James Enouen, Yujing Wang, Xiangchen Song, Chuizheng Meng, Hao Niu, Yan Liu

Causal analysis for time series data, in particular estimating individualized treatment effect (ITE), is a key task in many real-world applications, such as finance, retail, healthcare, etc.

Causal Inference Irregular Time Series +2

When Physics Meets Machine Learning: A Survey of Physics-Informed Machine Learning

no code implementations31 Mar 2022 Chuizheng Meng, Sungyong Seo, Defu Cao, Sam Griesemer, Yan Liu

Physics-informed machine learning (PIML), referring to the combination of prior knowledge of physics, which is the high level abstraction of natural phenomenons and human behaviours in the long history, with data-driven machine learning models, has emerged as an effective way to mitigate the shortage of training data, to increase models' generalizability and to ensure the physical plausibility of results.

BIG-bench Machine Learning Physics-informed machine learning

Cross-Node Federated Graph Neural Network for Spatio-Temporal Data Modeling

1 code implementation9 Jun 2021 Chuizheng Meng, Sirisha Rambhatla, Yan Liu

Vast amount of data generated from networks of sensors, wearables, and the Internet of Things (IoT) devices underscores the need for advanced modeling techniques that leverage the spatio-temporal structure of decentralized data due to the need for edge computation and licensing (data access) issues.

Federated Learning Spatio-Temporal Forecasting

MIMIC-IF: Interpretability and Fairness Evaluation of Deep Learning Models on MIMIC-IV Dataset

no code implementations12 Feb 2021 Chuizheng Meng, Loc Trinh, Nan Xu, Yan Liu

The recent release of large-scale healthcare datasets has greatly propelled the research of data-driven deep learning models for healthcare applications.

Fairness Feature Importance +1

PolSIRD: Modeling Epidemic Spread under Intervention Policies

no code implementations3 Sep 2020 Nitin Kamra, Yizhou Zhang, Sirisha Rambhatla, Chuizheng Meng, Yan Liu

Epidemic spread in a population is traditionally modeled via compartmentalized models which represent the free evolution of disease in absence of any intervention policies.

counterfactual

Physics-aware Spatiotemporal Modules with Auxiliary Tasks for Meta-Learning

no code implementations15 Jun 2020 Sungyong Seo, Chuizheng Meng, Sirisha Rambhatla, Yan Liu

Although the knowledge of governing partial differential equations (PDE) of data can be helpful for the fast adaptation to few observations, it is mostly infeasible to exactly find the equation for observations in real-world physical systems.

Meta-Learning

COVID-19 on Social Media: Analyzing Misinformation in Twitter Conversations

3 code implementations26 Mar 2020 Karishma Sharma, Sungyong Seo, Chuizheng Meng, Sirisha Rambhatla, Yan Liu

The analysis is presented and updated on a publically accessible dashboard (https://usc-melady. github. io/COVID-19-Tweet-Analysis) to track the nature of online discourse and misinformation about COVID-19 on Twitter from March 1 - June 5, 2020.

Fact Checking Misinformation

Benchmark of Deep Learning Models on Large Healthcare MIMIC Datasets

1 code implementation23 Oct 2017 Sanjay Purushotham, Chuizheng Meng, Zhengping Che, Yan Liu

Deep learning models (aka Deep Neural Networks) have revolutionized many fields including computer vision, natural language processing, speech recognition, and is being increasingly used in clinical healthcare applications.

Benchmarking BIG-bench Machine Learning +6

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