Optimisation of subwoofer placement using a finite-difference time-domain acoustic simulation

The placement of a subwoofer has significant impact on the quality of its sound reproduction. This paper present a method to optimise subwoofer placement in a room. Resonances caused by room boundaries (called "room modes") cause localised peaks and lows for specific lower frequencies. The goal is to minimize the simulated frequency response...

Warm-starting evolutionary plan optimization for high-dose-rate brachytherapy treatment to reduce optimization time

Camera-based face and infrared temperature sensing of learner's affective state in the remote learning context using machine learning

Remote learning, learning from home using online available materials, is becoming increasingly more common. This paper focuses on reading activities during remote learning. An important part of learning is keeping sustained attention on the learning materials, as a shift from sustained attention to internal thought or mind-wandering oftentimes...

Tracking Sustained Attention with Webcam-Based Eye Gaze and Blink Tracking

Sustained attention is a cognitive state where the learners’ attention is completely focused on the learning environment and content-related thoughts for a continuous stretch of time. Sustained attention is vital to perform well on learning tasks, such as reading. Learning analytics platforms that detect changes in sustained attention can...

Assessing learner’s distraction in a multimodal platform for sustained attention in the remote learning context using mobile devices sensors

During a learning task, keeping a steady attentive state is detrimental for good performance. A person is subject to distraction from different sources, among which distractions originating from within him or herself or from external sources, such as ambient sound. The detection of such distraction can improve the effectiveness of a task by...

The Error that is the Error Message: Comparing information expectations of novice programmers against the information in Python error messages

Learning to program is not a easy task, as has become evident from the abundance of research papers concerning the subject. One of the learning barriers of learning a new programming language is understanding their error message, as coding errors have to be resolved before the programmer can run the code or add new functionality to the program....

A Cloud-Based DevOps Toolchain for Efficient Software Development

In the traditional software development life cycle, development and operation are divided into different departments. The conflict between departments and, besides, the lack of automation usually leads to low software development efficiency and slow software delivery. Thus, the concept of DevOps is introduced, which combines different...