Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Semi-Supervised Learning and Data Augmentation in Wearable-based
  Momentary Stress Detection in the Wild   Physiological and behavioral data collected from wearable or mobile sensors
have been used to estimate self-reported stress levels. Since the stress
annotation usually relies on self-reports during the study, a limited amount of
labeled data can be an obstacle in developing accurate and generalized stress
predicting models. On the other hand, the sensors can continuously capture
signals without annotations. This work investigates leveraging unlabeled
wearable sensor data for stress detection in the wild. We first applied data
augmentation techniques on the physiological and behavioral data to improve the
robustness of supervised stress detection models. Using an auto-encoder with
actively selected unlabeled sequences, we pre-trained the supervised model
structure to leverage the information learned from unlabeled samples. Then, we
developed a semi-supervised learning framework to leverage the unlabeled data
sequences. We combined data augmentation techniques with consistency
regularization, which enforces the consistency of prediction output based on
augmented and original unlabeled data. We validated these methods using three
wearable/mobile sensor datasets collected in the wild. Our results showed that
combining the proposed methods improved stress classification performance by
7.7% to 13.8% on the evaluated datasets, compared to the baseline supervised
learning models.

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The categories of this paper are: atom-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: funct-an
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The categories of this paper are: cmp-lg
7
The categories of this paper are: hep-th
5
The categories of this paper are: gr-qc
4
The categories of this paper are: cond-mat
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The categories of this paper are: alg-geom
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The categories of this paper are: quant-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: q-alg
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The categories of this paper are: patt-sol
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The categories of this paper are: physics
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The categories of this paper are: plasm-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: nucl-ex