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Yukun Chen

Researcher at Vanderbilt University

Publications -  23
Citations -  2830

Yukun Chen is an academic researcher from Vanderbilt University. The author has contributed to research in topics: Active learning (machine learning) & Named-entity recognition. The author has an hindex of 16, co-authored 22 publications receiving 2455 citations.

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A study of machine-learning-based approaches to extract clinical entities and their assertions from discharge summaries.

TL;DR: Systematic evaluation on the training set showed that Conditional Random Fields outperformed Support Vector Machines, and semantic information from existing natural-language-processing systems largely improved performance, although contributions from different types of features varied.
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Large-scale prediction of adverse drug reactions using chemical, biological, and phenotypic properties of drugs

TL;DR: A machine-learning-based approach for ADR prediction by integrating the phenotypic characteristics of a drug, including indications and other known ADRs, with the drug's chemical structures and biological properties, including protein targets and pathway information is proposed.
Journal ArticleDOI

A study of active learning methods for named entity recognition in clinical text

TL;DR: In the simulated setting, AL methods, particularly uncertainty-sampling based approaches, seemed to significantly save annotation cost for the clinical NER task.