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A Machine Learning Approach to Classify Pedestrians’ Event based on IMU and GPS

Authors:

Mobyen Uddin Ahmed, Staffan Brickman , Alexander Dengg , Niklas Fasth , Marko Mihajlovic , Jacob Norman

Publication Type:

Conference/Workshop Paper

Venue:

International Conference on Modern Intelligent Systems Concepts


Abstract

This paper investigates and implements six Machine Learning (ML) algorithms, i.e. Artificial Neural Network (ANN), Support Vector Machine (SVM), Decision Tree (DT), Random Forest (RF), Extra Tree (ET), and Gradient Boosted Trees (GBT) to classify different Pedestrians’ events based on Inertial Measurement Unit (IMU) and Global Positioning System (GPS) signals. Pedestrians’ events are pedestrian movements as the first step of H2020 project called SimuSafe1 with a goal to reduce traffic fatalities by doing risk assessments of the pedestrians. The movements the MLs’ models are attempting to classify are standing, walking, and running. Data, i.e. IMU, GPS sensor signals and other contextual information are collected by a smartphone through a controlled procedure. The smartphone is placed in five different positions onto the body of participants, i.e. arm, chest, ear, hand and pocket. The recordings are filtered, trimmed, and labeled. Next, samples are generated from small overlapping sections from which time and frequency domain features are extracted. Three different experiments are conducted to evaluate the performances in term of accuracy of the MLs’ models in different circumstances. The best performing MLs’ models determined by the average accuracy across all experiments is Extra Tree (ET) with a classification accuracy of 91%.

Bibtex

@inproceedings{Ahmed5255,
author = {Mobyen Uddin Ahmed and Staffan Brickman and Alexander Dengg and Niklas Fasth and Marko Mihajlovic and Jacob Norman},
title = {A Machine Learning Approach to Classify Pedestrians’ Event based on IMU and GPS},
month = {January},
year = {2019},
booktitle = {International Conference on Modern Intelligent Systems Concepts },
url = {http://www.es.mdh.se/publications/5255-}
}