Scale-dependent blending of ensemble rainfall nowcasts and numerical weather prediction in the open-source pysteps library

Flash flood early warning requires accurate rainfall forecasts with a high spatial and temporal resolution. As the first few hours ahead are already not sufficiently well captured by the rainfall forecasts of numerical weather prediction (NWP) models, radar rainfall nowcasting can provide an alternative. Because this observation-based method...

Treat societally impactful scientific insights as open-source software artifacts

So far, the relationship between open science and software engineering expertise has largely focused on the open release of software engineering research insights and reproducible artifacts, in the form of open-access papers, open data, and open-source tools and libraries. In this position paper, we draw attention to another perspective:...

The Illuminator: An Open Source Energy System Integration Development Kit

This paper introduces a flexible and extendable easy-to-use energy system integration development kit: the Illuminator. The Illuminator illustrates challenges arising from the energy transition. Hence, it is suitable in education and for demonstration. It also acts as a sandbox for testing new research concepts, and particularly, distributed...

Flipped Classroom Real-World Activities for Learning Open Computing Concepts

Various “open” concepts in Computing, such as open standards, open data, open licenses or system interoperability are becoming more important in the professional lives of software engineers. However, students usually do not receive a systematic education about these concepts; rather they sporadically learn about a subset of these topics. This...

Automated feedback on viewing skills lowers accident involvement

The risk of being involved in an accident in the first year after licensing is greater for novice drivers who passed their driving exam the first time than for novice drivers who failed their first driving exam. Enhanced training programmes can shorten the duration of training and can raise the passing rate on the first exam, but can also...

Open Source Urbanism: Requirements for an Open Design Platform to Support an Emerging Concept

Citizens interested in the democratization of urban development processes experiment with the co-creation of public spaces. Some of them collect, improve, and share design blueprints and manuals of their projects on the internet with help of free and open source tools. As a result, they produce open source design manuals that can be used freely,...

Heart Rate Analysis for Human Factors: Development and Validation of an Open Source Toolkit for Noisy Naturalistic Heart Rate Data

Heart rate data are collected often in human factors studies. Advances in open hardware platforms and offtheshelf photoplethysmogram (PPG) sensors allow the nonintrusive collection of heart rate data at very low cost. However, the signal is not trivial to analyse, since the morphology of PPG waveforms differs from electrocardiogram (ECG)...

Secrecy versus openness: Internet security and the limits of open source and peer production

Open source and peer production have been praised as organisational models that could change the world for the better. It is commonly asserted that almost any societal activity could benefit from distributed, bottom-up collaboration — by making societal interaction more open, more social, and more democratic. However, we also need to be mindful...

Lisa-S 2.8g autopilot for GPS-based flight of MAVs

Recent advances in sensor miniaturization have enabled the development of a miniaturized fully functional autopilot. In this article, the open hardware and open software Paparazzi-UAV Lisa-S micro autopilot is presented, weighing only 2.8 grams and measuring 2 by 2 centimeters. It incorporates 2-way telemetry with a ground station, a Spektrum...

Lisa-S 2.8g autopilot for GPS-based flight of MAVs

Recent advances in sensor miniaturization have enabled the development of a miniaturized fully functional autopilot. In this article, the open hardware and open software Paparazzi-UAV Lisa-S micro autopilot is presented, weighing only 2.8 grams and measuring 2 by 2 centimeters. It incorporates 2-way telemetry with a ground station, a Spektrum...

Open traffic: A toolbox for traffic research

Open Traffic is an open source software project that provides a transport modeling software environment. While most transport model packages offer ready-to-use modules for end-users, Open Traffic provides open access to a modelling environment for the (further) development of methods and algorithms and enables the sharing, distribution and...

Open Genetic Code: On open source in the life sciences

The introduction of open source in the life sciences is increasingly being suggested as an alternative to patenting. This is an alternative, however, that takes its shape at the intersection of the life sciences and informatics. Numerous examples can be identified wherein open source in the life sciences refers to access, sharing and...

Sessie 1: Van 'closed-source' naar 'open-source' modelleer software: lessons learned

Sessie 4: Open source overheid

Information Materials: Smart material based architectural design

This paper questions the current use of materials in architecture, which furthers the preference of surface and form over inherent material properties. It then investigates recent advancements towards the notion of a Digital Materiality, comparing various international research activities and approaches. It concludes with the potentials of Smart...

Governance Structures of Free/Open Source Software Development: Examining the role of modular product design as a governance mechanism in the FreeBSD Project

My dissertation looks at the Governance Structures of Free/Open Source (FOSS) Development, based on a case study of FreeBSD, a large FOSS project. More specifically, it examines 3 well-known theories. The 1st theory [decreasing returns to scale] holds that increasing the number of persons working together results in a productivity drop due to (a...

Persona?based development of a new discovery system using MERESCO open?source components

Sophie and Rogier are students at Delft University of Technology. Sophie is a master student of Architecture. She searches for information mostly to get inspired. Sometimes she’s looking for a specific book and uses Amazon first, because she knows what the cover looks like, but can’t remember the author or title. Rogier is writing his master’s...

Understanding open source communities: An organizational perspective

Open source communities are groups of sometimes hundreds if not thousands of individuals with different interests, backgrounds and motives. Many participants are volunteers, who are not paid to take part in the communities. Furthermore, many never get to meet each other in real life. They meet virtually, on the Internet. Yet they are able to...