Searched for: contributor%3A%22Leus%2C+G.J.T.+%28mentor%29%22
(1 - 20 of 34)

Pages

List view
Grid view
document
Focante, Edoardo (author)
In recent years, neural networks (NNs) have seen a surge in popularity due to their ability to model complex patterns and relationships in data. One of the challenges of using NNs is the requirement for large amounts of labelled data to train the model effectively. In many real-world applications such as radar, labelled data may be scarce due to...
master thesis 2023
document
van Heteren, Mauries (author)
The underwater acoustic environment is amongst the most challenging mediums for wireless communications. The three distinct challenges of underwater acoustic communication are the low and nonuniform propagation speed, frequency-dependent attenuation and time-varying multipath propagation.<br/>To cope with these challenges, physical layer...
master thesis 2022
document
van der Hoeven, Jelmer (author)
In the current Big Data era, large amounts of data are collected from complex systems, such as sensor networks and social networks. The emerging field of graph signal processing (GSP) leverages a network structure (graph) to process signals on an irregular domain. This thesis studies the forecasting of multi-dimensional graph processes, i.e.,...
master thesis 2022
document
Garst, Swier (author)
Federated learning is an upcoming machine learning concept which allows data from multiple sources be usedfor training of classifiers without said data leaving its origin. In certain research cases using highly privatedata, the step of gathering data can be quite tedious. In such cases, federated learning has the potential tovastly speed up the...
master thesis 2021
document
He, Yanbin (author)
Graphs can be models for many real-world systems, where nodes indicate the entities and edges indicate the pairwise connections in between. In various cases, it is important to detect informative subsets of nodes such that the nodes within the subsets are ’closer’ to each other. For example, in a cellular network, determining appropriate node...
master thesis 2021
document
Enthoven, Maarten (author)
At the Center for Ultrasound and Brain imaging at Erasmus MC in Rotterdam, a mouse's visual cortex had been imaged using the fUS technique. The mouse had been exposed to different visual stimuli. The stimuli varied in position, size, and shape. We investigate how the measured task-based fUS signals differ depending on the visual stimuli...
master thesis 2021
document
Gerçekcioğlu, S.A. (author)
Networks with a large number of participants and a highly dynamic data exchange are better off using a distributed networking system due to network failures in centralized networks. However, with the increase in distributed networking, security problems arise in distributed processes. Injection of malicious data, for example, must be dealt with...
master thesis 2021
document
Dullaart, Bob (author)
On land, localization or ranging is typically performed by using electromagnetic waves. In an underwater environment, this becomes difficult, as electromagnetic waves dampen out fast. As a solution often acoustic waves are used to perform localization. Because of the complexity of underwater acoustic propagation, an acoustic propagation model is...
master thesis 2020
document
Kerkhof, Franck (author), Rodewijk, Koen (author)
In this study multiple design approaches have been tried to accurately determine the respiratory rate every 30 seconds of a patient in a hospital bed using six piezoelectric pressure sensors located sand­wiched between the mattress and the bed. After four design iterations using a variety of different methods, a final design using a Least Mean...
bachelor thesis 2020
document
Achten, Huib (author), Rojer, Gideon (author)
In this paper we will research the possibility, reliability and accuracy of calculating the heart rate of a patient at rest using Ballistocardiography in clinical settings. The vital signs of the patient will be extracted by using piezoelectric sensor which is embedded in a Bedsense device developed by Momomedical. The device developed by...
bachelor thesis 2020
document
Jong, Emilie (author), Verhagen, A.R.I. (author)
This report presents a bed exit prediction model using a decision tree classifier, a machine learning method. This system is designed to alarm a caregiver in a nursing home to prevent bed­ falls among institutionalized elderly. For the input of this algorithm, features are derived from four force sensing resistor sensors and six piezoelectric...
bachelor thesis 2020
document
Garcia Manso, A. (author)
In the oil and gas industry a crucial step for detecting and developing natural resources is to drill wells and measure miscellaneous properties along the well depth. These measurements are used to understand the rock and hydrocarbon properties and support oil/gas field development. The measurements are done at multiple times and using different...
master thesis 2020
document
Zhang, Kaiwen (author)
In radio astronomy (RA), one of the key tasks is the estimation of the celestial source powers, i.e. imaging. To maximize the performance, it is crucial to optimize the receiver locations before the construction of a telescope array. However, although system calibration is an integral and crucial process of imaging, it has rarely been addressed...
master thesis 2020
document
Yang, Maosheng (author)
This thesis consists of two parts in both data science and signal processing over graphs. In the first part of this thesis, we aim to solve the problem of graph construction in big data scenario, which is critical for practical tasks, like collaborative filtering in recommender systems, spectral embedding or clustering in learning algorithms. We...
master thesis 2020
document
RACHURI, Vishnu (author)
Ubiquitous connectivity requirements and stringent quality-of-services (QoS)<br/>in recent wireless communications demand new revolutionary wireless network<br/>technologies to support the exponentially increasing traffic growth.<br/>Massive multiple-input-multiple-output (MIMO) with the capability of high<br/>spectral efficiency achieved by...
master thesis 2019
document
Zwetsloot, Eva (author), Wix, Lynrick (author)
Current subsea LiDAR implementations are inherently depth limited, and make LiDAR applications in the deep-sea costly. To this end, the SLiDAR project aims to develop a pressure tolerant LiDAR system for use at any ocean depth. This thesis elaborates the design and implementation of the laser pulse transmission of the LiDAR and the circuit which...
bachelor thesis 2019
document
Jonk, Jasper (author), Minderman, Björn (author)
Though several sensors are available for underwater scanning and ranging, they all have their limits. SONAR sensors are limited in resolution, and scanning mechanisms using a form of light for carrying the data suffer from high attenuation in turbid waters. <br/> <br/>The goal of this project was to design a LiDAR system that is capable of...
bachelor thesis 2019
document
Coonen, Bart (author)
Direction-Of-Arrival (DOA) estimation of acoustic signals is of great interest in various applications including battlefield acoustic and noise localization. Acoustic sensors are employed in an array configuration to estimate DOAs based on the time differences of arrival DOAs. However, the acoustic sensors in the network have all their own Data...
master thesis 2018
document
Mahabir, Ashvant (author)
Graphs are used to model irregular data structures and serve as models to represent/capture the interrelationships between data. The data in graphs are also referred as graph signals. Graph signal processing (GSP) can then be applied which basically extends classical signal processing to solve problems. Anomaly detection is an example of such a...
master thesis 2017
document
Kok, Wim (author), Hoogland, Andy (author)
Problem Definition<br/>This bachelor final project was an assignment given by the start up Momo Medical named: "Improving health care with technology". This project was to use their existing technology and ideas to create a system to prevent pressure ulcers. Pressure ulcer are the medical condition that happens when a patient is left too long in...
bachelor thesis 2017
Searched for: contributor%3A%22Leus%2C+G.J.T.+%28mentor%29%22
(1 - 20 of 34)

Pages

List view
Grid view