Defect-Repairable Latent Feature Extraction of Driving Behavior via a Deep Sparse Autoencoder

Data representing driving behavior, as measured by various sensors installed in a vehicle, are collected as multi-dimensional sensor time-series data. These data often include redundant information, e.g., both the speed of wheels and the engine speed represent the velocity of the vehicle. Redundant...

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Vydáno v:Sensors (Basel, Switzerland) Ročník 18; číslo 2; s. 608
Hlavní autoři: Liu, HaiLong, Taniguchi, Tadahiro, Takenaka, Kazuhito, Bando, Takashi
Médium: Journal Article
Jazyk:angličtina
Vydáno: Switzerland MDPI AG 16.02.2018
MDPI
Témata:
deep learning
defects repairing
driving behavior analysis
Economic models
Feature extraction
Sensors
driving behavior analysis
deep learning
defects repairing
feature extraction
ISSN:1424-8220, 1424-8220
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Shrnutí:Data representing driving behavior, as measured by various sensors installed in a vehicle, are collected as multi-dimensional sensor time-series data. These data often include redundant information, e.g., both the speed of wheels and the engine speed represent the velocity of the vehicle. Redundant information can be expected to complicate the data analysis, e.g., more factors need to be analyzed; even varying the levels of redundancy can influence the results of the analysis. We assume that the measured multi-dimensional sensor time-series data of driving behavior are generated from low-dimensional data shared by the many types of one-dimensional data of which multi-dimensional time-series data are composed. Meanwhile, sensor time-series data may be defective because of sensor failure. Therefore, another important function is to reduce the negative effect of defective data when extracting low-dimensional time-series data. This study proposes a defect-repairable feature extraction method based on a deep sparse autoencoder (DSAE) to extract low-dimensional time-series data. In the experiments, we show that DSAE provides high-performance latent feature extraction for driving behavior, even for defective sensor time-series data. In addition, we show that the negative effect of defects on the driving behavior segmentation task could be reduced using the latent features extracted by DSAE.
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ISSN:1424-8220
1424-8220
DOI:10.3390/s18020608