Search Results for author: Hyewon Jeong

Found 15 papers, 11 papers with code

Medical Hallucinations in Foundation Models and Their Impact on Healthcare

1 code implementation26 Feb 2025 Yubin Kim, Hyewon Jeong, Shan Chen, Shuyue Stella Li, Mingyu Lu, Kumail Alhamoud, Jimin Mun, Cristina Grau, Minseok Jung, Rodrigo Gameiro, Lizhou Fan, Eugene Park, Tristan Lin, Joonsik Yoon, Wonjin Yoon, Maarten Sap, Yulia Tsvetkov, Paul Liang, Xuhai Xu, Xin Liu, Daniel McDuff, Hyeonhoon Lee, Hae Won Park, Samir Tulebaev, Cynthia Breazeal

Our contributions include (1) a taxonomy for understanding and addressing medical hallucinations, (2) benchmarking models using medical hallucination dataset and physician-annotated LLM responses to real medical cases, providing direct insight into the clinical impact of hallucinations, and (3) a multi-national clinician survey on their experiences with medical hallucinations.

Benchmarking Hallucination

Identifying Differential Patient Care Through Inverse Intent Inference

no code implementations11 Nov 2024 Hyewon Jeong, Siddharth Nayak, Taylor Killian, Sanjat Kanjilal

Sepsis is a life-threatening condition defined by end-organ dysfunction due to a dysregulated host response to infection.

counterfactual Imitation Learning +2

Finding "Good Views" of Electrocardiogram Signals for Inferring Abnormalities in Cardiac Condition

1 code implementation11 Nov 2024 Hyewon Jeong, Suyeol Yun, Hammaad Adam

In this project, we investigate several ways to define positive samples, and assess which approach yields the best performance in a downstream task of classifying arrhythmia.

Arrhythmia Detection Contrastive Learning

A Demonstration of Adaptive Collaboration of Large Language Models for Medical Decision-Making

1 code implementation31 Oct 2024 Yubin Kim, Chanwoo Park, Hyewon Jeong, Cristina Grau-Vilchez, Yik Siu Chan, Xuhai Xu, Daniel McDuff, Hyeonhoon Lee, Cynthia Breazeal, Hae Won Park

Medical Decision-Making (MDM) is a multi-faceted process that requires clinicians to assess complex multi-modal patient data patient, often collaboratively.

Decision Making Diagnostic

MDAgents: An Adaptive Collaboration of LLMs for Medical Decision-Making

1 code implementation22 Apr 2024 Yubin Kim, Chanwoo Park, Hyewon Jeong, Yik Siu Chan, Xuhai Xu, Daniel McDuff, Hyeonhoon Lee, Marzyeh Ghassemi, Cynthia Breazeal, Hae Won Park

MDAgents achieved the best performance in seven out of ten benchmarks on tasks requiring an understanding of medical knowledge and multi-modal reasoning, showing a significant improvement of up to 4. 2% (p < 0. 05) compared to previous methods' best performances.

Decision Making Medical Diagnosis +1

Event-Based Contrastive Learning for Medical Time Series

1 code implementation16 Dec 2023 Hyewon Jeong, Nassim Oufattole, Matthew McDermott, Aparna Balagopalan, Bryan Jangeesingh, Marzyeh Ghassemi, Collin Stultz

In clinical practice, one often needs to identify whether a patient is at high risk of adverse outcomes after some key medical event.

Contrastive Learning Decision Making +2

Deep Metric Learning for the Hemodynamics Inference with Electrocardiogram Signals

1 code implementation9 Aug 2023 Hyewon Jeong, Collin M. Stultz, Marzyeh Ghassemi

Additionally, the supervised DML model that uses ECGs with access to 8, 172 mPCWP labels demonstrated significantly better performance on the mPCWP regression task compared to the supervised baseline.

Metric Learning

Real-Time Seizure Detection using EEG: A Comprehensive Comparison of Recent Approaches under a Realistic Setting

1 code implementation21 Jan 2022 Kwanhyung Lee, Hyewon Jeong, Seyun Kim, Donghwa Yang, Hoon-Chul Kang, Edward Choi

Electroencephalogram (EEG) is an important diagnostic test that physicians use to record brain activity and detect seizures by monitoring the signals.

Diagnostic EEG +1

Clinical Risk Prediction with Temporal Probabilistic Asymmetric Multi-Task Learning

2 code implementations23 Jun 2020 A. Tuan Nguyen, Hyewon Jeong, Eunho Yang, Sung Ju Hwang

Existing asymmetric multi-task learning methods tackle this negative transfer problem by performing knowledge transfer from tasks with low loss to tasks with high loss.

Knowledge Graphs Multi-Task Learning +3

Temporal Probabilistic Asymmetric Multi-task Learning

no code implementations25 Sep 2019 Nguyen Anh Tuan, Hyewon Jeong, Eunho Yang, Sungju Hwang

To capture such dynamically changing asymmetric relationships between tasks and long-range temporal dependencies in time-series data, we propose a novel temporal asymmetric multi-task learning model, which learns to combine features from other tasks at diverse timesteps for the prediction of each task.

Multi-Task Learning Prediction +2

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