Search Results for author: Gia H. Ngo

Found 15 papers, 8 papers with code

Zero-shot Learning of Individualized Task Contrast Prediction from Resting-state Functional Connectomes

no code implementations21 Oct 2023 Minh Nguyen, Gia H. Ngo, Mert R. Sabuncu

Given sufficient pairs of resting-state and task-evoked fMRI scans from subjects, it is possible to train ML models to predict subject-specific task-evoked activity using resting-state functional MRI (rsfMRI) scans.

Zero-Shot Learning

GLACIAL: Granger and Learning-based Causality Analysis for Longitudinal Studies

no code implementations13 Oct 2022 Minh Nguyen, Gia H. Ngo, Mert R. Sabuncu

We call our approach GLACIAL, which stands for "Granger and LeArning-based CausalIty Analysis for Longitudinal studies."

A Transformer-based Neural Language Model that Synthesizes Brain Activation Maps from Free-Form Text Queries

no code implementations24 Jul 2022 Gia H. Ngo, Minh Nguyen, Nancy F. Chen, Mert R. Sabuncu

In this paper, we present Text2Brain, an easy to use tool for synthesizing brain activation maps from open-ended text queries.

Language Modelling

Text2Brain: Synthesis of Brain Activation Maps from Free-form Text Query

2 code implementations28 Sep 2021 Gia H. Ngo, Minh Nguyen, Nancy F. Chen, Mert R. Sabuncu

In this work, we propose Text2Brain, a neural network approach for coordinate-based meta-analysis of neuroimaging studies to synthesize brain activation maps from open-ended text queries.

Neural encoding with visual attention

1 code implementation NeurIPS 2020 Meenakshi Khosla, Gia H. Ngo, Keith Jamison, Amy Kuceyeski, Mert R. Sabuncu

Using concurrent eye-tracking and functional Magnetic Resonance Imaging (fMRI) recordings from a large cohort of human subjects watching movies, we first demonstrate that leveraging gaze information, in the form of attentional masking, can significantly improve brain response prediction accuracy in a neural encoding model.

A shared neural encoding model for the prediction of subject-specific fMRI response

1 code implementation29 Jun 2020 Meenakshi Khosla, Gia H. Ngo, Keith Jamison, Amy Kuceyeski, Mert R. Sabuncu

The increasing popularity of naturalistic paradigms in fMRI (such as movie watching) demands novel strategies for multi-subject data analysis, such as use of neural encoding models.

Transfer Learning

Hierarchical Character Embeddings: Learning Phonological and Semantic Representations in Languages of Logographic Origin using Recursive Neural Networks

1 code implementation20 Dec 2019 Minh Nguyen, Gia H. Ngo, Nancy F. Chen

Using recursive neural network imposes a prior on the mapping from logographs to embeddings since the network must read in the sub-units in logographs according to the order specified by the recursive structures.

Language Modelling

Isolating the Effects of Modeling Recursive Structures: A Case Study in Pronunciation Prediction of Chinese Characters

no code implementations WS 2019 Minh Nguyen, Gia H. Ngo, Nancy Chen

Finding that explicitly modeling structures leads to better generalization, we consider the task of predicting Cantonese pronunciations of logographs (Chinese characters) using logographs{'} recursive structures.

Machine learning in resting-state fMRI analysis

no code implementations30 Dec 2018 Meenakshi Khosla, Keith Jamison, Gia H. Ngo, Amy Kuceyeski, Mert R. Sabuncu

Here, we present an overview of various unsupervised and supervised machine learning applications to rs-fMRI.

BIG-bench Machine Learning

Phonology-Augmented Statistical Framework for Machine Transliteration using Limited Linguistic Resources

no code implementations7 Oct 2018 Gia H. Ngo, Minh Nguyen, Nancy F. Chen

The problem is compounded by the limited linguistic resources available when converting foreign words to transliterated words in the target language.

Transliteration

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