Search Results for author: Dongfang Xu

Found 13 papers, 4 papers with code

Summarizing Patients’ Problems from Hospital Progress Notes Using Pre-trained Sequence-to-Sequence Models

no code implementations COLING 2022 Yanjun Gao, Dmitriy Dligach, Timothy Miller, Dongfang Xu, Matthew M. M. Churpek, Majid Afshar

In this work, we propose a new NLP task that aims to generate a list of problems in a patient’s daily care plan using input from the provider’s progress notes during hospitalization.

Data Augmentation Domain Adaptation +3

Triplet-Trained Vector Space and Sieve-Based Search Improve Biomedical Concept Normalization

1 code implementation NAACL (BioNLP) 2021 Dongfang Xu, Steven Bethard

We propose a vector-space model for concept normalization, where mentions and concepts are encoded via transformer networks that are trained via a triplet objective with online hard triplet mining.

Sensing-assisted Robust SWIPT for Mobile Energy Harvesting Receivers

no code implementations15 Feb 2024 Yiming Xu, Dongfang Xu, Shenghui Song

Simultaneous wireless information and power transfer (SWIPT) has been proposed to offer communication services and transfer power to the energy harvesting receiver (EHR) concurrently.

Robust Design

Joint BS Selection, User Association, and Beamforming Design for Network Integrated Sensing and Communication

no code implementations9 May 2023 Yiming Xu, Dongfang Xu, Lei Xie, Shenghui Song

Different from conventional radar, the cellular network in the integrated sensing and communication (ISAC) system enables collaborative sensing by multiple sensing nodes, e. g., base stations (BSs).

Energy-Aware Resource Allocation and Trajectory Design for UAV-Enabled ISAC

no code implementations20 Feb 2023 Ata Khalili, Atefeh Rezaei, Dongfang Xu, Robert Schober

In this paper, we investigate joint resource allocation and trajectory design for multi-user multi-target unmanned aerial vehicle (UAV)-enabled integrated sensing and communication (ISAC).

Summarizing Patients Problems from Hospital Progress Notes Using Pre-trained Sequence-to-Sequence Models

no code implementations17 Aug 2022 Yanjun Gao, Dmitriy Dligach, Timothy Miller, Dongfang Xu, Matthew M. Churpek, Majid Afshar

In this work, we propose a new NLP task that aims to generate a list of problems in a patient's daily care plan using input from the provider's progress notes during hospitalization.

Data Augmentation Domain Adaptation +3

A Scoping Review of Publicly Available Language Tasks in Clinical Natural Language Processing

no code implementations7 Dec 2021 Yanjun Gao, Dmitriy Dligach, Leslie Christensen, Samuel Tesch, Ryan Laffin, Dongfang Xu, Timothy Miller, Ozlem Uzuner, Matthew M Churpek, Majid Afshar

Conclusions: The existing clinical NLP tasks cover a wide range of topics and the field will continue to grow and attract more attention from both general domain NLP and clinical informatics community.

BCH-NLP at BioCreative VII Track 3: medications detection in tweets using transformer networks and multi-task learning

1 code implementation26 Nov 2021 Dongfang Xu, Shan Chen, Timothy Miller

In this paper, we present our work participating in the BioCreative VII Track 3 - automatic extraction of medication names in tweets, where we implemented a multi-task learning model that is jointly trained on text classification and sequence labelling.

Data Augmentation Multi-Task Learning +2

A Generate-and-Rank Framework with Semantic Type Regularization for Biomedical Concept Normalization

no code implementations ACL 2020 Dongfang Xu, Zeyu Zhang, Steven Bethard

Concept normalization, the task of linking textual mentions of concepts to concepts in an ontology, is challenging because ontologies are large.

Pre-trained Contextualized Character Embeddings Lead to Major Improvements in Time Normalization: a Detailed Analysis

no code implementations SEMEVAL 2019 Dongfang Xu, Egoitz Laparra, Steven Bethard

Recent studies have shown that pre-trained contextual word embeddings, which assign the same word different vectors in different contexts, improve performance in many tasks.

Word Embeddings

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