Search Results for author: Diane J. Cook

Found 9 papers, 5 papers with code

CALDA: Improving Multi-Source Time Series Domain Adaptation with Contrastive Adversarial Learning

1 code implementation30 Sep 2021 Garrett Wilson, Janardhan Rao Doppa, Diane J. Cook

CALDA synergistically combines the principles of contrastive learning and adversarial learning to robustly support multi-source UDA (MS-UDA) for time series data.

Contrastive Learning Data Augmentation +4

Transfer Learning for Activity Recognition in Mobile Health

1 code implementation12 Jul 2020 Yuchao Ma, Andrew T. Campbell, Diane J. Cook, John Lach, Shwetak N. Patel, Thomas Ploetz, Majid Sarrafzadeh, Donna Spruijt-Metz, Hassan Ghasemzadeh

While activity recognition from inertial sensors holds potential for mobile health, differences in sensing platforms and user movement patterns cause performance degradation.

Activity Recognition Transfer Learning

Multi-Source Deep Domain Adaptation with Weak Supervision for Time-Series Sensor Data

2 code implementations22 May 2020 Garrett Wilson, Janardhan Rao Doppa, Diane J. Cook

First, we propose a novel Convolutional deep Domain Adaptation model for Time Series data (CoDATS) that significantly improves accuracy and training time over state-of-the-art DA strategies on real-world sensor data benchmarks.

Domain Adaptation Time Series +1

A Survey of Techniques All Classifiers Can Learn from Deep Networks: Models, Optimizations, and Regularization

no code implementations10 Sep 2019 Alireza Ghods, Diane J. Cook

We then survey non-neural network learning algorithms that make innovative use of these methods to improve classification.

General Classification

Multi-Purposing Domain Adaptation Discriminators for Pseudo Labeling Confidence

no code implementations17 Jul 2019 Garrett Wilson, Diane J. Cook

Often domain adaptation is performed using a discriminator (domain classifier) to learn domain-invariant feature representations so that a classifier trained on labeled source data will generalize well to unlabeled target data.

Domain Adaptation

Activity2Vec: Learning ADL Embeddings from Sensor Data with a Sequence-to-Sequence Model

1 code implementation12 Jul 2019 Alireza Ghods, Diane J. Cook

The widespread availability of sensors implanted in homes, smartphones, and smart watches have engendered collection of big datasets that reflect human behavior.

Activity Recognition Feature Engineering +2

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