Search Results for author: Graciela Gonzalez-Hernandez

Found 10 papers, 1 papers with code

Overview of the Seventh Social Media Mining for Health Applications (#SMM4H) Shared Tasks at COLING 2022

no code implementations SMM4H (COLING) 2022 Davy Weissenbacher, Juan Banda, Vera Davydova, Darryl Estrada Zavala, Luis Gasco Sánchez, Yao Ge, Yuting Guo, Ari Klein, Martin Krallinger, Mathias Leddin, Arjun Magge, Raul Rodriguez-Esteban, Abeed Sarker, Lucia Schmidt, Elena Tutubalina, Graciela Gonzalez-Hernandez

For the past seven years, the Social Media Mining for Health Applications (#SMM4H) shared tasks have promoted the community-driven development and evaluation of advanced natural language processing systems to detect, extract, and normalize health-related information in public, user-generated content.

UPennHLP at WNUT-2020 Task 2 : Transformer models for classification of COVID19 posts on Twitter

no code implementations EMNLP (WNUT) 2020 Arjun Magge, Varad Pimpalkhute, Divya Rallapalli, David Siguenza, Graciela Gonzalez-Hernandez

Increasing usage of social media presents new non-traditional avenues for monitoring disease outbreaks, virus transmissions and disease progressions through user posts describing test results or disease symptoms.

Task 2

ReportAGE: Automatically extracting the exact age of Twitter users based on self-reports in tweets

no code implementations10 Mar 2021 Ari Z. Klein, Arjun Magge, Graciela Gonzalez-Hernandez

The objective of this study was to develop and evaluate a method that automatically identifies the exact age of users based on self-reports in their tweets.

Multi-class Classification

Towards Automatic Bot Detection in Twitter for Health-related Tasks

no code implementations29 Sep 2019 Anahita Davoudi, Ari Z. Klein, Abeed Sarker, Graciela Gonzalez-Hernandez

Our approach obtains F_1 scores of 0. 7 for the "bot" class, representing improvements of 0. 339.

Automatically Identifying Comparator Groups on Twitter for Digital Epidemiology of Pregnancy Outcomes

no code implementations16 Aug 2019 Ari Z. Klein, Abeselom Gebreyesus, Graciela Gonzalez-Hernandez

Despite the prevalence of adverse pregnancy outcomes such as miscarriage, stillbirth, birth defects, and preterm birth, their causes are largely unknown.

Epidemiology

Deep Neural Networks Ensemble for Detecting Medication Mentions in Tweets

no code implementations10 Apr 2019 Davy Weissenbacher, Abeed Sarker, Ari Klein, Karen O'Connor, Arjun Magge Ranganatha, Graciela Gonzalez-Hernandez

A fundamental step to incorporating Twitter data in pharmacoepidemiological research is to automatically recognize medication mentions in tweets.

Ensemble Learning

Automatically Detecting Self-Reported Birth Defect Outcomes on Twitter for Large-scale Epidemiological Research

no code implementations22 Oct 2018 Ari Z. Klein, Abeed Sarker, Davy Weissenbacher, Graciela Gonzalez-Hernandez

The primary objective of this study was to take the first step towards scaling the use of social media for observing pregnancies with birth defect outcomes, namely, developing methods for automatically detecting tweets by users reporting their birth defect outcomes.

BIG-bench Machine Learning

An unsupervised and customizable misspelling generator for mining noisy health-related text sources

1 code implementation4 Jun 2018 Abeed Sarker, Graciela Gonzalez-Hernandez

Our proposed spelling variant generator has several advantages over the current state-of-the-art and other types of variant generators-(i) it is capable of filtering out lexically similar but semantically dissimilar terms, (ii) the number of variants generated is low as many low-frequency and ambiguous misspellings are filtered out, and (iii) the system is fully automatic, customizable and easily executable.

Retrieval

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