Publications (9)
An Overview of Human Activity Recognition Using Wearable Sensors: Healthcare and Artificial Intelligence
Rex Liu, Albara Ah Ramli, Huanle Zhang +2
With the rapid development of the internet of things (IoT) and artificial intelligence (AI) technologies, human activity recognition (HAR) has been applied in a variety of domains…
BWCNN: Blink to Word, a Real-Time Convolutional Neural Network Approach
Albara Ah Ramli, Rex Liu, Rahul Krishnamoorthy +4
Amyotrophic lateral sclerosis (ALS) is a progressive neurodegenerative disease of the brain and the spinal cord, which leads to paralysis of motor functions. Patients retain their…
Cost-Saving LLM Cascades with Early Abstention
Michael J. Zellinger, Rex Liu, Matt Thomson
LLM cascades deploy small LLMs to answer most queries, limiting the use of large and expensive LLMs to difficult queries. This approach can significantly reduce costs without impac…
Gait Characterization in Duchenne Muscular Dystrophy (DMD) Using a Single-Sensor Accelerometer: Classical Machine Learning and Deep Learning Approaches
Albara Ah Ramli, Xin Liu, Kelly Berndt +13
Differences in gait patterns of children with Duchenne muscular dystrophy (DMD) and typically-developing (TD) peers are visible to the eye, but quantifications of those differences…
MASTAF: A Model-Agnostic Spatio-Temporal Attention Fusion Network for Few-shot Video Classification
Rex Liu, Huanle Zhang, Hamed Pirsiavash +1
We propose MASTAF, a Model-Agnostic Spatio-Temporal Attention Fusion network for few-shot video classification. MASTAF takes input from a general video spatial and temporal represe…
Early Mobility Recognition for Intensive Care Unit Patients Using Accelerometers
Rex Liu, Sarina A Fazio, Huanle Zhang +3
With the development of the Internet of Things(IoT) and Artificial Intelligence(AI) technologies, human activity recognition has enabled various applications, such as smart homes a…