Search Results for author: Meliha Yetisgen

Found 29 papers, 8 papers with code

Extracting Social Determinants of Health from Pediatric Patient Notes Using Large Language Models: Novel Corpus and Methods

1 code implementation31 Mar 2024 Yujuan Fu, Giridhar Kaushik Ramachandran, Nicholas J Dobbins, Namu Park, Michael Leu, Abby R. Rosenberg, Kevin Lybarger, Fei Xia, Ozlem Uzuner, Meliha Yetisgen

In this work, we present a novel annotated corpus, the Pediatric Social History Annotation Corpus (PedSHAC), and evaluate the automatic extraction of detailed SDoH representations using fine-tuned and in-context learning methods with Large Language Models (LLMs).

In-Context Learning

A Novel Corpus of Annotated Medical Imaging Reports and Information Extraction Results Using BERT-based Language Models

no code implementations27 Mar 2024 Namu Park, Kevin Lybarger, Giridhar Kaushik Ramachandran, Spencer Lewis, Aashka Damani, Ozlem Uzuner, Martin Gunn, Meliha Yetisgen

Here, we introduce the Corpus of Annotated Medical Imaging Reports (CAMIR), which includes 609 annotated radiology reports from three imaging modality types: Computed Tomography, Magnetic Resonance Imaging, and Positron Emission Tomography-Computed Tomography.

Anatomy

Building blocks for complex tasks: Robust generative event extraction for radiology reports under domain shifts

no code implementations15 Jun 2023 Sitong Zhou, Meliha Yetisgen, Mari Ostendorf

This paper explores methods for extracting information from radiology reports that generalize across exam modalities to reduce requirements for annotated data.

Domain Adaptation Event Extraction

Prompt-based Extraction of Social Determinants of Health Using Few-shot Learning

no code implementations12 Jun 2023 Giridhar Kaushik Ramachandran, Yujuan Fu, Bin Han, Kevin Lybarger, Nicholas J Dobbins, Özlem Uzuner, Meliha Yetisgen

Social determinants of health (SDOH) documented in the electronic health record through unstructured text are increasingly being studied to understand how SDOH impacts patient health outcomes.

Few-Shot Learning

ACI-BENCH: a Novel Ambient Clinical Intelligence Dataset for Benchmarking Automatic Visit Note Generation

no code implementations3 Jun 2023 Wen-wai Yim, Yujuan Fu, Asma Ben Abacha, Neal Snider, Thomas Lin, Meliha Yetisgen

Here we present the Ambient Clinical Intelligence Benchmark (ACI-BENCH) corpus, the largest dataset to date tackling the problem of AI-assisted note generation from visit dialogue.

Benchmarking

LeafAI: query generator for clinical cohort discovery rivaling a human programmer

no code implementations13 Apr 2023 Nicholas J Dobbins, Bin Han, Weipeng Zhou, Kristine Lan, H. Nina Kim, Robert Harrington, Ozlem Uzuner, Meliha Yetisgen

Conclusions: Our work contributes a state-of-the-art data model-agnostic query generation system capable of conditional reasoning using a knowledge base.

Logical Reasoning named-entity-recognition +2

The 2022 n2c2/UW Shared Task on Extracting Social Determinants of Health

1 code implementation13 Jan 2023 Kevin Lybarger, Meliha Yetisgen, Özlem Uzuner

Results: A total of 15 teams participated, and the top teams utilized pretrained deep learning LM.

Word Embeddings

Leveraging Natural Language Processing to Augment Structured Social Determinants of Health Data in the Electronic Health Record

1 code implementation14 Dec 2022 Kevin Lybarger, Nicholas J Dobbins, Ritche Long, Angad Singh, Patrick Wedgeworth, Ozlem Ozuner, Meliha Yetisgen

In an EHR case study, we applied the SDOH extractor to a large clinical data set with 225, 089 patients and 430, 406 notes with social history sections and compared the extracted SDOH information with existing structured data.

Relation Extraction

Generalizing through Forgetting -- Domain Generalization for Symptom Event Extraction in Clinical Notes

no code implementations20 Sep 2022 Sitong Zhou, Kevin Lybarger, Meliha Yetisgen, Mari Ostendorf

To reduce reliance on domain-specific features, we propose a domain generalization method that dynamically masks frequent symptoms words in the source domain.

Domain Generalization Event Extraction +2

Extracting Medication Changes in Clinical Narratives using Pre-trained Language Models

no code implementations17 Aug 2022 Giridhar Kaushik Ramachandran, Kevin Lybarger, Yaya Liu, Diwakar Mahajan, Jennifer J. Liang, Ching-Huei Tsou, Meliha Yetisgen, Özlem Uzuner

An accurate and detailed account of patient medications, including medication changes within the patient timeline, is essential for healthcare providers to provide appropriate patient care.

Negation

The Leaf Clinical Trials Corpus: a new resource for query generation from clinical trial eligibility criteria

1 code implementation27 Jul 2022 Nicholas J Dobbins, Tony Mullen, Ozlem Uzuner, Meliha Yetisgen

In order to identify potential participants at scale, these criteria must first be translated into queries on clinical databases, which can be labor-intensive and error-prone.

Extracting Radiological Findings With Normalized Anatomical Information Using a Span-Based BERT Relation Extraction Model

no code implementations20 Aug 2021 Kevin Lybarger, Aashka Damani, Martin Gunn, Ozlem Uzuner, Meliha Yetisgen

Medical imaging reports distill the findings and observations of radiologists, creating an unstructured textual representation of unstructured medical images.

Relation Relation Extraction

Transferability of Neural Network Clinical De-identification Systems

no code implementations17 Feb 2021 Kahyun Lee, Nicholas J. Dobbins, Bridget McInnes, Meliha Yetisgen, Ozlem Uzuner

We measured: transferability from external sources; transferability across note types; the contribution of external source data when in-domain training data are available; and transferability across institutions.

De-identification Domain Generalization

Performance of Automatic De-identification Across Different Note Types

no code implementations17 Feb 2021 Nicholas Dobbins, David Wayne, Kahyun Lee, Özlem Uzuner, Meliha Yetisgen

Free-text clinical notes detail all aspects of patient care and have great potential to facilitate quality improvement and assurance initiatives as well as advance clinical research.

De-identification

Jointly Learning Clinical Entities and Relations with Contextual Language Models and Explicit Context

no code implementations17 Feb 2021 Paul Barry, Sam Henry, Meliha Yetisgen, Bridget McInnes, Ozlem Uzuner

We hypothesize that explicit integration of contextual information into an Multi-task Learning framework would emphasize the significance of context for boosting performance in jointly learning Named Entity Recognition (NER) and Relation Extraction (RE).

Multi-Task Learning named-entity-recognition +4

Extracting COVID-19 Diagnoses and Symptoms From Clinical Text: A New Annotated Corpus and Neural Event Extraction Framework

no code implementations2 Dec 2020 Kevin Lybarger, Mari Ostendorf, Matthew Thompson, Meliha Yetisgen

In a secondary use application, we explored the prediction of COVID-19 test results using structured patient data (e. g. vital signs and laboratory results) and automatically extracted symptom information.

Event Extraction

Alignment Annotation for Clinic Visit Dialogue to Clinical Note Sentence Language Generation

no code implementations LREC 2020 Wen-wai Yim, Meliha Yetisgen, Jenny Huang, Micah Grossman

Despite advances in natural language processing, automating clinical note generation from a clinic visit conversation is a largely unexplored area of research.

Information Retrieval Retrieval +2

Annotating Social Determinants of Health Using Active Learning, and Characterizing Determinants Using Neural Event Extraction

no code implementations11 Apr 2020 Kevin Lybarger, Mari Ostendorf, Meliha Yetisgen

The Social History Annotation Corpus (SHAC) includes 4, 480 social history sections with detailed annotation for 12 SDOH characterizing the status, extent, and temporal information of 18K distinct events.

Active Learning Decision Making +3

Extraction and Analysis of Clinically Important Follow-up Recommendations in a Large Radiology Dataset

1 code implementation14 May 2019 Wilson Lau, Thomas H Payne, Ozlem Uzuner, Meliha Yetisgen

Communication of follow-up recommendations when abnormalities are identified on imaging studies is prone to error.

Sentence

Clinical Event Detection with Hybrid Neural Architecture

no code implementations WS 2017 Adyasha Maharana, Meliha Yetisgen

Event detection from clinical notes has been traditionally solved with rule based and statistical natural language processing (NLP) approaches that require extensive domain knowledge and feature engineering.

Event Detection Feature Engineering +1

Annotating and Detecting Medical Events in Clinical Notes

no code implementations LREC 2016 Prescott Klassen, Fei Xia, Meliha Yetisgen

Early detection and treatment of diseases that onset after a patient is admitted to a hospital, such as pneumonia, is critical to improving and reducing costs in healthcare.

Negation

Annotating Clinical Events in Text Snippets for Phenotype Detection

no code implementations LREC 2014 Prescott Klassen, Fei Xia, V, Lucy erwende, Meliha Yetisgen

Early detection and treatment of diseases that onset after a patient is admitted to a hospital, such as pneumonia, is critical to improving and reducing costs in healthcare.

Pneumonia Detection

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