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Considering few treatments are available to slow or stop neurodegenerative disorders, such as Alzheimer's disease and related dementias (ADRD), modifying lifestyle factors to prevent disease onset are recommended. The Voice, Activity, and Location Monitoring system for Alzheimer's disease (VALMA) is a novel ambulatory sensor system designed to capture(More)
Comfort noise insertion during speech pause has been applied to Voice-over-IP and wireless networks for increasing bandwidth efficiency. We present two classified comfort noise generation (CCNG) schemes using Gaussian Mixture classifiers (GMM-C). Our first scheme employs a classified prototype background noise codebook with the prototype noise waveform(More)
Latent Dirichlet Allocation (LDA) is a very popular model for topic modeling as well as many other problems with latent groups. It is both simple and effective. When the number of topics (or latent groups) is unknown, the Hierarchical Dirich-let Process (HDP) provides an elegant non-parametric extension; however, it is a complex model and it is difficult to(More)
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