Search Results for author: Megan A. Witherow

Found 4 papers, 0 papers with code

Pilot Study to Discover Candidate Biomarkers for Autism based on Perception and Production of Facial Expressions

no code implementations27 Mar 2024 Megan A. Witherow, Norou Diawara, Janice Keener, John W. Harrington, Khan M. Iftekharuddin

Results: We identify one candidate ET biomarker (percentage gaze duration to the face while mimicking static 'disgust' expression) and 14 additional DVs of interest for future study, including 4 ET DVs, 5 DVs related to VT AU activation, and 4 DVs related to AU asymmetry in VT. Based on a power analysis, we provide sample size recommendations for future studies.

Customizable Avatars with Dynamic Facial Action Coded Expressions (CADyFACE) for Improved User Engagement

no code implementations12 Mar 2024 Megan A. Witherow, Crystal Butler, Winston J. Shields, Furkan Ilgin, Norou Diawara, Janice Keener, John W. Harrington, Khan M. Iftekharuddin

To measure subjects' AUs in response to CADyFACE, we propose a novel Beta-guided Correlation and Multi-task Expression learning neural network (BeCoME-Net) for multi-label AU detection.

Feature Correlation

Deep Adaptation of Adult-Child Facial Expressions by Fusing Landmark Features

no code implementations18 Sep 2022 Megan A. Witherow, Manar D. Samad, Norou Diawara, Haim Y. Bar, Khan M. Iftekharuddin

We propose domain adaptation to concurrently align distributions of adult and child expressions in a shared latent space for robust classification of either domain.

Age-Invariant Face Recognition Classification +3

Effect of Text Processing Steps on Twitter Sentiment Classification using Word Embedding

no code implementations25 Jul 2020 Manar D. Samad, Nalin D. Khounviengxay, Megan A. Witherow

However, text processing steps are often performed using off-the-shelf routines and pre-built word dictionaries without optimizing for domain, application, and context.

General Classification Sentiment Analysis +4

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