L
Liwei Wang
Researcher at University of British Columbia
Publications - 239
Citations - 4572
Liwei Wang is an academic researcher from University of British Columbia. The author has contributed to research in topics: Computer science & Voltage. The author has an hindex of 25, co-authored 204 publications receiving 2943 citations. Previous affiliations of Liwei Wang include Jilin University & Northwestern University.
Papers
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Journal ArticleDOI
Clinical information extraction applications: A literature review.
Yanshan Wang,Liwei Wang,Majid Rastegar-Mojarad,Sungrim Moon,Feichen Shen,Naveed Afzal,Sijia Liu,Yuqun Zeng,Saeed Mehrabi,Sunghwan Sohn,Hongfang Liu +10 more
TL;DR: There is a considerable gap between clinical studies using EHR data and studies using clinical IE, so a more concrete understanding of the gap is gained and potential solutions to bridge this gap are provided.
Journal ArticleDOI
A comparison of word embeddings for the biomedical natural language processing
Yanshan Wang,Sijia Liu,Naveed Afzal,Majid Rastegar-Mojarad,Liwei Wang,Feichen Shen,Paul R. Kingsbury,Hongfang Liu +7 more
TL;DR: The qualitative evaluation shows that the word embeddings trained from EHR and MedLit can find more similar medical terms than those trained from GloVe and Google News, and the intrinsic quantitative evaluation verifies that the semantic similarity captured by the wordEmbedded is closer to human experts' judgments on all four tested datasets.
Journal ArticleDOI
A clinical text classification paradigm using weak supervision and deep representation.
Yanshan Wang,Sunghwan Sohn,Sijia Liu,Feichen Shen,Liwei Wang,Elizabeth J. Atkinson,Shreyasee Amin,Hongfang Liu +7 more
TL;DR: In this article, a clinical text classification paradigm using weak supervision and deep representation was proposed to reduce human efforts of labeled training data creation and feature engineering for applying machine learning to clinical text classi cation.
Journal ArticleDOI
High-Frequency Modeling of the Long-Cable-Fed Induction Motor Drive System Using TLM Approach for Predicting Overvoltage Transients
TL;DR: In this article, an improved high-frequency motor equivalent circuit model is developed to represent the motor highfrequency behavior for the time and frequency-domain analyses, which is verified on an experimental 2.2kW ABB motor drive benchmark system.
Proceedings ArticleDOI
Five level cross connected cell for cascaded converters
TL;DR: In this paper, an alternate five-level four-quadrant cascaded multilevel converter cell configuration was proposed, which compared to the other cell configurations, for dc fault current limitation, will be more compact and avoid the external dc breaker.