no code implementations • 27 Nov 2023 • Marius Bock, Michael Moeller, Kristof Van Laerhoven
Our results show that state-of-the-art TAL models are able to outperform popular inertial models on 4 out of 6 wearable activity recognition benchmark datasets, with improvements ranging as much as 25% in F1-score.
no code implementations • 5 Jul 2023 • Abdelhadi Soudi, Manal El Hakkaoui, Kristof Van Laerhoven
Extrinsic factors include users technology experience, their hearing status, age and their sign language fluency.
1 code implementation • 22 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.
1 code implementation • 15 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.
1 code implementation • 11 Apr 2023 • Marius Bock, Hilde Kuehne, Kristof Van Laerhoven, Michael Moeller
Though research has shown the complementarity of camera- and inertial-based data, datasets which offer both egocentric video and inertial-based sensor data remain scarce.
Egocentric Activity Recognition Human Activity Recognition +2
1 code implementation • 27 Feb 2023 • Ankur Raj, Diwas Bhattarai, Kristof Van Laerhoven
For evaluation on our hardware-specific camera frames, we also contribute a dataset of 35000 images, from 20 participants.
no code implementations • 8 Sep 2022 • Isaiah K. Mutai, Kristof Van Laerhoven, Nancy W. Karuri, Robert K. Tewo
The performance indices for the input variables of Dissolved Oxygen, Nitrogen, Fecal Coliform and Total Coliform in prediction of BOD are: RMSE=6. 77mg/L, r=0. 60 and accuracy 70. 3% for training dataset of 80% and RMSE=6. 74mg/L, r=0. 60 and accuracy of 87. 5% for training set of 90% of the dataset.
1 code implementation • 13 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.
no code implementations • 12 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%.
2 code implementations • 2 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.
1 code implementation • 2 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.
no code implementations • 28 May 2021 • Christina Nicolaou, Ahmad Mansour, Kristof Van Laerhoven
Process- and design-specific features can be learned locally (e. g. on a sensor system) without the need of prior offline training.
no code implementations • Sensors 2019 • Attila Reiss, Ina Indlekofer, Philip Schmidt, Kristof Van Laerhoven
We show that on large datasets the deep learning model significantly outperforms other methods: The mean absolute error could be reduced by 31% on the new dataset PPG-DaLiA, and by 21% on the dataset WESAD.
Ranked #1 on Heart rate estimation on PPG-DaLiA