A machine learning approach to classify pedestrians’ events based on IMU and GPSShow others and affiliations
2019 (English)In: International Journal of Artificial Intelligence, E-ISSN 0974-0635, Vol. 17, no 2, p. 154-167Article in journal (Refereed) Published
Abstract [en]
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%.
Place, publisher, year, edition, pages
CESER Publications , 2019. Vol. 17, no 2, p. 154-167
Keywords [en]
Artificial Neural Network (ANN), Classification, Decision Tree (DT), Extra Tree (ET), Gradient Boosted Trees (GBT), Machine Learning (ML), Pedestrians’ event, Random Forest (RF), Support Vector Machine (SVM)
National Category
Bioinformatics (Computational Biology) Signal Processing
Identifiers
URN: urn:nbn:se:mdh:diva-45833Scopus ID: 2-s2.0-85073358186OAI: oai:DiVA.org:mdh-45833DiVA, id: diva2:1365520
2019-10-252019-10-252023-12-13Bibliographically approved