Search Results for author: Masoud Rouhizadeh

Found 15 papers, 1 papers with code

COVID-19 SignSym: a fast adaptation of a general clinical NLP tool to identify and normalize COVID-19 signs and symptoms to OMOP common data model

no code implementations13 Jul 2020 Jingqi Wang, Noor Abu-el-rub, Josh Gray, Huy Anh Pham, Yujia Zhou, Frank Manion, Mei Liu, Xing Song, Hua Xu, Masoud Rouhizadeh, Yaoyun Zhang

To this end, this study aims at adapting the existing CLAMP natural language processing tool to quickly build COVID-19 SignSym, which can extract COVID-19 signs/symptoms and their 8 attributes (body location, severity, temporal expression, subject, condition, uncertainty, negation, and course) from clinical text.

Negation

Identifying Locus of Control in Social Media Language

no code implementations EMNLP 2018 Masoud Rouhizadeh, Kokil Jaidka, Laura Smith, H. Andrew Schwartz, Anneke Buffone, Lyle Ungar

Individuals express their locus of control, or {``}control{''}, in their language when they identify whether or not they are in control of their circumstances.

Detecting Personal Medication Intake in Twitter: An Annotated Corpus and Baseline Classification System

no code implementations WS 2017 Ari Klein, Abeed Sarker, Masoud Rouhizadeh, Karen O{'}Connor, Graciela Gonzalez

Social media sites (e. g., Twitter) have been used for surveillance of drug safety at the population level, but studies that focus on the effects of medications on specific sets of individuals have had to rely on other sources of data.

Epidemiology General Classification

Deriving Verb Predicates By Clustering Verbs with Arguments

no code implementations1 Aug 2017 Joao Sedoc, Derry Wijaya, Masoud Rouhizadeh, Andy Schwartz, Lyle Ungar

Hand-built verb clusters such as the widely used Levin classes (Levin, 1993) have proved useful, but have limited coverage.

Clustering

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