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Showing result 1 - 5 of 8 essays matching the above criteria.

  1. 1. Anomaly Detection in Riding Behaviours : Using Unsupervised Machine Learning Methods on Time Series Data from Micromobility Services

    University essay from Umeå universitet/Institutionen för matematik och matematisk statistik

    Author : Indra Hansson; Julia Congreve Lifh; [2022]
    Keywords : Unsupervised Machine Learning; Sensor Data; Anomaly Detection; Micromobility; Övervakad Maskininlärning; Sensordata; Anomalidetektering; Mikromobilitet;

    Abstract : The global micromobility market is a fast growing market valued at USD 40.19 Billion in 2020. As the market grows, it is of great importance for companies to gain market shares in order to stay competitive and be the first choice within micromobility services. This can be achieved by, e. READ MORE

  3. 2. Human Activity Recognition : Deep learning techniques for an upper body exercise classification system

    University essay from Högskolan Kristianstad/Fakulteten för naturvetenskap

    Author : Paolo Nardi; [2019]
    Keywords : Human Activity Recognition; Deep Learning; Machine Learning; Exercise Classification; Convolutional Neural Network;

    Abstract : Most research behind the use of Machine Learning models in the field of Human Activity Recognition focuses mainly on the classification of daily human activities and aerobic exercises. In this study, we focus on the use of 1 accelerometer and 2 gyroscope sensors to build a Deep Learning classifier to recognise 5 different strength exercises, as well as a null class. READ MORE

  4. 3. Today's Space Weather in the Planetarium : visualization and feature extraction pipeline for astrophysical observation and simulation data

    University essay from Linköpings universitet/Medie- och Informationsteknik; Linköpings universitet/Tekniska högskolan

    Author : Sovanny Huy Nikkilä; Axel Kollberg; [2019]
    Keywords : scientific visualization; field line visualization; feature extraction; runtime downloading; sliding windows;

    Abstract : This thesis describes the work of two students in collaboration with OpenSpace and the Community Coordinated Modelling Center (CCMC). The need expressed by both parties is a way to more accessibly visualize space weather data from the CCMC in OpenSpace. READ MORE

  5. 4. Maintaining Stream Data Distribution Over Sliding Window

    University essay from Mittuniversitetet/Avdelningen för informationssystem och -teknologi

    Author : Jian Chen; [2018]
    Keywords : Datastream; online algorithm; quantile problem; online analysis;

    Abstract : In modern applications, it is a big challenge that analyzing the order statistics about the most recent parts of the high-volume and high velocity stream data. There are some online quantile algorithms that can keep the sketch of the data in the sliding window and they can answer the quantile or rank query in a very short time. READ MORE

  6. 5.  b-Value Variations Preceding the Devastating, 1999 Earthquake, near Izmit, Turkey

    University essay from Uppsala universitet/Geofysik

    Author : Sara Andersson; [2015]
    Keywords : b-value; frequency-magnitude distribution; earthquake precursors; temporal variations; North Anatolian Fault Zone; b-värde; Gutenberg-Richter relationen; förelöpare till jordbävningar; temporala variationer; Norra Anatoliska förkastningen;

    Abstract : The potential of temporal b-value variations as an intermediate-term (weeks to months) earthquake precursor was investigated in the western portion of the North Anatolian Fault Zone (NAFZ), between January 1982 to December 2004. The focus of the study is on the devastating, 1999 earthquake, near Izmit. READ MORE