Search Results for author: Alexander Hoelzemann

Found 6 papers, 5 papers with code

Hang-Time HAR: A Benchmark Dataset for Basketball Activity Recognition using Wrist-Worn Inertial Sensors

1 code implementation22 May 2023 Alexander Hoelzemann, Julia Lee Romero, Marius Bock, Kristof Van Laerhoven, Qin Lv

We present a benchmark dataset for evaluating physical human activity recognition methods from wrist-worn sensors, for the specific setting of basketball training, drills, and games.

Human Activity Recognition Time Series

A Matter of Annotation: An Empirical Study on In Situ and Self-Recall Activity Annotations from Wearable Sensors

1 code implementation15 May 2023 Alexander Hoelzemann, Kristof Van Laerhoven

Furthermore, we discuss the advantages and disadvantages of the methods compared in our study, the biases they may could introduce and the consequences of their usage on human activity recognition studies and as well as possible solutions.

Human Activity Recognition

Tutorial on Deep Learning for Human Activity Recognition

1 code implementation13 Oct 2021 Marius Bock, Alexander Hoelzemann, Michael Moeller, Kristof Van Laerhoven

Activity recognition systems that are capable of estimating human activities from wearable inertial sensors have come a long way in the past decades.

Feature Engineering Human Activity Recognition

Detecting Handwritten Mathematical Terms with Sensor Based Data

no code implementations12 Sep 2021 Lukas Wegmeth, Alexander Hoelzemann, Kristof Van Laerhoven

The second classifier is a Deep Neural Network that combines convolution layers with recurrent layers to predict windows with a single label, out of the 15 possible classes, at an F1 score of >60%.

Time Series Time Series Analysis

Transformer Networks for Data Augmentation of Human Physical Activity Recognition

2 code implementations2 Sep 2021 Sandeep Ramachandra, Alexander Hoelzemann, Kristof Van Laerhoven

It improves generalization and reduces amount of annotated human activity data needed for training which reduces labour and time needed with the dataset.

Data Augmentation Human Activity Recognition +2

Improving Deep Learning for HAR with shallow LSTMs

1 code implementation2 Aug 2021 Marius Bock, Alexander Hoelzemann, Michael Moeller, Kristof Van Laerhoven

Recent studies in Human Activity Recognition (HAR) have shown that Deep Learning methods are able to outperform classical Machine Learning algorithms.

Human Activity Recognition

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