A comparative analysis of coding approaches in machine learning among computer science students and non-computer science students

The increasing presence of Machine Learning in all fields of study requires an improvement in how it is taught. Previous research on this topic examined how to teach ML concepts and highlighted the importance of using technology and leveraging relevant pedagogical content knowledge. It did not compare the impact of previous programming knowledge...

Firmware Updates Over The Air for LoRa using Random Linear Network Coding

LoRaWAN is a public Wireless Sensor network with excellent properties like being long-range, low-energy radios and resulting in long battery life. Devices are connected to this network through gateways, and they will run in that deployment for years without replacement. Therefore, bugs and security issues in such devices' firmware are present...

Towards Ubiquitous and Efficient LoRaWAN: MAC-Layer Protocols and APP-Layer Coding Mechanisms for Scalable and Energy-Efficient Long-Range Wide-Area Networks (LoRaWAN)

A finite element investigation of the mechanical effect of ply drops in blended laminates

Weight reduction in vehicles offers many advantages. Especially in aircraft, one of the advantages of weight reduction less need for power which is translated into less fuel consumption and lower emissions. Composite materials are now a popular construction material in new passenger aircraft, making them lighter by taking advantage of their high...

It's in your pocket: A MOOC about programming for kids and the role of OER in teaching and learning contexts

Programming is considered as an essential skill in the 21st century. Visual programming languages and age-appropriate development environments allow an easy entry into this field. Nevertheless, it is very challenging to bring those skills in a very short time frame to schools, to their teachers, and to school children themselves. Therefore, Graz...

Multimedia tele-education - PC based real-time narrowband applications

After surveying tele-education systems and technology, this study describes the design of a tele-education system which is particularly suitable for the extension of the educational facilities of universities to remote communities. The study is focused on the application of third-world small-scale institutes like the University of the...

High Quality Transmission Of Paper Documents Over Telecommunications Networks

A system is presented for the transmission over telecommunications networks of a document from paper input (scanner) to an electronic output medium, mostly a computer or electronic storage device. The scanning operation has to take place at a high resolution (300 dots per inch), so the emphasis in this report is put on data compression.

Analysis of the Eurofix Data Link

After the introduction of the Eurofix concept for transmission of Differential GPS data via Loran-C signals by additional phase modulation, the consequences of this modulation for conventional (non-Eurofix) users is discussed. In what follows, various modulation schemes will be introduced and the properties of these schemes will be described.

On the feasibility of applying robot vision to proximity extraction based on one camera in space

Existing robot vision algorithms are evaluated for application in space for proximity extraction using one camera. Lighting conditions and image formation differ from earth conditions which have implications. An algorithm is derived which is based on the use of run coding, tracking and a least mean error method. Problems concerning hardware...

CADISS: a multi-processor system for image compression/decompression on board scientific satellites

Project CADISS has produced an elegant breadboard of a system for compression (and -if required- decompression) of signals generated by imaging sensors on-board scientific satellites. The performance, specifications and physical characteristics of CADISS are the result of trade-offs on function (algorithms), technology, through-put speed and...

Data compression in computational fluid dynamics

Computations in numerical fluid dynamics create large sets of data. Transmission of these datasets requires a high speed communication link or, alternatively, the use of data compression techniques. This report describes the results of a study to the applicability of data compression techniques. An algorithm is designed that yields favourable...

Error correcting coding for satellite communications

This report describes the most relevant block- and convolutional codes to be used in satellite communication systems. Design trade-offs are given for the choice of coding techniques in SCPC, TDMA and SS-TDMA communication system,