Search Results for author: Yonggi Park

Found 6 papers, 0 papers with code

Federated learning model for predicting major postoperative complications

no code implementations9 Apr 2024 Yonggi Park, Yuanfang Ren, Benjamin Shickel, Ziyuan Guan, Ayush Patela, Yingbo Ma, Zhenhong Hu, Tyler J. Loftus, Parisa Rashidi, Tezcan Ozrazgat-Baslanti, Azra Bihorac

Federated learning models achieved comparable AUROC performance to central learning models, except for prolonged ICU stay, where the performance of federated learning models was slightly higher than central learning models at UFH GNV center, but slightly lower at UFH JAX center.

Federated Learning

Efficient Noise Filtration of Images by Low-Rank Singular Vector Approximations of Geodesics' Gramian Matrix

no code implementations27 Sep 2022 Kelum Gajamannage, Yonggi Park, Mallikarjunaiah Muddamallappa, Sunil Mathur

The applicability of GDD is limited as it encounters $\mathcal{O}(n^6)$ when denoising a given image of size $n\times n$ since GGD computes the prominent singular vectors of a $n^2 \times n^2$ data matrix that is implemented by singular value decomposition (SVD).

Denoising Object Tracking

Real-time Forecasting of Time Series in Financial Markets Using Sequentially Trained Many-to-one LSTMs

no code implementations10 May 2022 Kelum Gajamannage, Yonggi Park

People have been using learning tools from diverse fields such as financial mathematics and machine learning in the attempt of making trustworthy predictions on such markets.

Time Series Time Series Analysis

Geodesic Gramian Denoising Applied to the Images Contaminated With Noise Sampled From Diverse Probability Distributions

no code implementations4 Mar 2022 Yonggi Park, Kelum Gajamannage, Alexey Sadovski

As quotidian use of sophisticated cameras surges, people in modern society are more interested in capturing fine-quality images.

Denoising

Recurrent Neural Networks for Dynamical Systems: Applications to Ordinary Differential Equations, Collective Motion, and Hydrological Modeling

no code implementations14 Feb 2022 Yonggi Park, Kelum Gajamannage, Dilhani I. Jayathilake, Erik M. Bollt

Specifically, we analyze the performance of RNNs applied to three tasks: reconstruction of correct Lorenz solutions for a system with a formulation error, reconstruction of corrupted collective motion trajectories, and forecasting of streamflow time series possessing spikes, representing three fields, namely, ordinary differential equations, collective motion, and hydrological modeling, respectively.

Time Series Time Series Analysis

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