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FilterNet: A Many-to-Many Deep Learning Architecture for Time Series Classification.


ABSTRACT: In this paper, we present and benchmark FilterNet, a flexible deep learning architecture for time series classification tasks, such as activity recognition via multichannel sensor data. It adapts popular convolutional neural network (CNN) and long short-term memory (LSTM) motifs which have excelled in activity recognition benchmarks, implementing them in a many-to-many architecture to markedly improve frame-by-frame accuracy, event segmentation accuracy, model size, and computational efficiency. We propose several model variants, evaluate them alongside other published models using the Opportunity benchmark dataset, demonstrate the effect of model ensembling and of altering key parameters, and quantify the quality of the models' segmentation of discrete events. We also offer recommendations for use and suggest potential model extensions. FilterNet advances the state of the art in all measured accuracy and speed metrics when applied to the benchmarked dataset, and it can be extensively customized for other applications.

SUBMITTER: Chambers RD 

PROVIDER: S-EPMC7249062 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature

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FilterNet: A Many-to-Many Deep Learning Architecture for Time Series Classification.

Chambers Robert D RD   Yoder Nathanael C NC  

Sensors (Basel, Switzerland) 20200428 9


In this paper, we present and benchmark FilterNet, a flexible deep learning architecture for time series classification tasks, such as activity recognition via multichannel sensor data. It adapts popular convolutional neural network (CNN) and long short-term memory (LSTM) motifs which have excelled in activity recognition benchmarks, implementing them in a many-to-many architecture to markedly improve frame-by-frame accuracy, event segmentation accuracy, model size, and computational efficiency.  ...[more]

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