Search Results for author: Priyadip Ray

Found 7 papers, 1 papers with code

Sequential Inference of Hospitalization ElectronicHealth Records Using Probabilistic Models

no code implementations27 Mar 2024 Alan D. Kaplan, Priyadip Ray, John D. Greene, Vincent X. Liu

Inference algorithms are derived that use partial data to infer properties of the complete sequences, including their length and presence of specific values.

Unsupervised Probabilistic Models for Sequential Electronic Health Records

no code implementations15 Apr 2022 Alan D. Kaplan, John D. Greene, Vincent X. Liu, Priyadip Ray

We develop an unsupervised probabilistic model for heterogeneous Electronic Health Record (EHR) data.

Attend and Decode: 4D fMRI Task State Decoding Using Attention Models

1 code implementation10 Apr 2020 Sam Nguyen, Brenda Ng, Alan D. Kaplan, Priyadip Ray

We also investigate the transferability of BAnD's extracted features on unseen HCP tasks, either by freezing the spatial feature extraction layers and retraining the temporal model, or finetuning the entire model.

Regularized Sparse Gaussian Processes

no code implementations13 Oct 2019 Rui Meng, Herbert Lee, Soper Braden, Priyadip Ray

An issue faced by SGP, especially in latent variable models, is the inefficient learning of the inducing inputs, which leads to poor model prediction.

Facial Expression Recognition (FER) Gaussian Processes +3

Nonstationary Multivariate Gaussian Processes for Electronic Health Records

no code implementations13 Oct 2019 Rui Meng, Braden Soper, Herbert Lee, Vincent X. Liu, John D. Greene, Priyadip Ray

We propose multivariate nonstationary Gaussian processes for jointly modeling multiple clinical variables, where the key parameters, length-scales, standard deviations and the correlations between the observed output, are all time dependent.

Gaussian Processes

Modeling sepsis progression using hidden Markov models

no code implementations9 Jan 2018 Brenden K. Petersen, Michael B. Mayhew, Kalvin O. E. Ogbuefi, John D. Greene, Vincent X. Liu, Priyadip Ray

Characterizing a patient's progression through stages of sepsis is critical for enabling risk stratification and adaptive, personalized treatment.

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