Since the Like-button was introduced in 2009 by Facebook, its use increased rapidly. Liking became an important part of our daily routines on the internet since we are able to like almost any creative expression, such as photos and videos. Little is known about the effects of liking (and disliking) on …

Research in the Netherlands on the success of students in higher education is highly influenced by Tinto’s integration theory. This paper is part of a broader PhD research, in which I investigate the possible influence of the use of social media (Facebook) by students. By comparing various studies conducted …

Modern engineering systems are complex socio-technical structures with a mission to offer services of high quality, while in parallel ensuring profitability for their owners. However, practice has shown that accidents are inevitable, and the need for the use of systems-theoretic tools to support safety-driven …

The continuous increase of accident and incident reports has indicated the potential of drones to threaten public safety. The published regulatory framework for small drones is not visibly based on a comprehensive hazard analysis. Also, a variety in the constraints imposed by different regulatory frameworks …

In this paper we present data on 407 homeless adults who have just entered the Dutch social relief system. We examined their personal goals of homeless adults and the association between their perceived goal related self-efficacy and their quality of life. Based on a hierarchical regression analysis …

Biogas produced through Anaerobic Digestion can be seen as a flexible and storable energy carrier. However, the environmental sustainability and efficiency of biogas production is not fully understood. Within this article the use, operation, structure, validation, and results of a model for the environmental …

Anaerobic digestion (AD) can play an important role in achieving renewable goals set within the Netherlands which strives for 40 PJ bio-energy in the year 2020. This research focusses on reaching this goal with locally available biomass waste flows (e.g. manures, grasses, harvest remains, municipal organic …

The two-dimensional vehicle routing problem (2L-VRP) is a realistic extension of the classical vehicle routing problem where customers’ demands are composed by sets of non-stackable items. Examples of such problems can be found in many real-life applications, e.g. furniture or industrial machinery transportation. …

We describe the participation of the University of Amsterdams ILPS group in the Total Recall track at TREC 2015. Based on the provided Baseline Model Implemention (”BMI”) we set out to provide two more baselines we can compare to in future work. The two methods are bootstrapped by a synthetic document …