The transportation mode such as walking, cycling or on a train
denotes an important characteristic of the mobile user’s context. In
this paper, we propose an approach to inferring a user’s mode of
transportation based on the GPS sensor on her mobile device and
knowledge of the underlying transportation network. The
transportation network information considered includes real time
bus locations, spatial rail and spatial bus stop information. We
identify and derive the relevant features related to transportation
network information to improve classification effectiveness. This
approach can achieve over 93.5% accuracy for inferring various
transportation modes including: car, bus, aboveground train,
walking, bike, and stationary. Our approach improves the accuracy
of detection by 17% in comparison with the GPS only approach,
and 9% in comparison with GPS with GIS models. The proposed
approach is the first to distinguish between motorized
transportation modes such as bus, car and aboveground train with
such high accuracy. Additionally, if a user is travelling by bus, we
provide further information about which particular bus the user is
riding. Five different inference models including Bayesian Net,
Decision Tree, Random Forest, Naïve Bayesian and Multilayer
Perceptron, are tested in the experiments. The final classification
system is deployed and available to the public
The transportation mode such as walking, cycling or on a traindenotes an important characteristic of the mobile user’s context. Inthis paper, we propose an approach to inferring a user’s mode oftransportation based on the GPS sensor on her mobile device andknowledge of the underlying transportation network. Thetransportation network information considered includes real timebus locations, spatial rail and spatial bus stop information. Weidentify and derive the relevant features related to transportationnetwork information to improve classification effectiveness. Thisapproach can achieve over 93.5% accuracy for inferring varioustransportation modes including: car, bus, aboveground train,walking, bike, and stationary. Our approach improves the accuracyof detection by 17% in comparison with the GPS only approach,and 9% in comparison with GPS with GIS models. The proposedapproach is the first to distinguish between motorizedtransportation modes such as bus, car and aboveground train withsuch high accuracy. Additionally, if a user is travelling by bus, weprovide further information about which particular bus the user isriding. Five different inference models including Bayesian Net,Decision Tree, Random Forest, Naïve Bayesian and MultilayerPerceptron, are tested in the experiments. The final classificationsystem is deployed and available to the public
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