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Pradena, Mauricio (author), Houben, L.J.M. (author)Pavements are one of the largest assets of a city and their functional condition (ride quality) is priority for their clients. In jointed plain concrete pavements (JPCPs), the presence of joint faulting (JF) reduces the ride quality. Today, short slabs are available as a cost-effective JPCP innovation. The objective of this paper is to analyse...journal article 2019
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Wong, J. (author), Baars, M. (author), de Koning, B. (author), van der Zee, T. (author), Davis, D.J. (author), Khalil, M. (author), Houben, G.J.P.M. (author), Paas, F. (author)The study of learning is grounded in theories and research. Since learning is complex and not directly observable, it is often inferred by collecting and analysing data based on the things learners do or say. By virtue, theories are developed from the analyses of data collected. With the proliferation of technology, large amounts of data are...book chapter 2019
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Houben, M. E. (author), Barnhoorn, A. (author), Peach, C. J. (author), Drury, M. R. (author)The presence of water in mudrocks has a largely negative impact on production of gas stored in these rocks, due to the fact that water causes swelling of the rock. Removing the water from the mudrock could potentially shrink the rock and increase the overall permeability of the rock. Investigation of the swelling/shrinkage behaviour of the...journal article 2018
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Ren, Dongya (author), Houben, L.J.M. (author)Prediction of the temperature development at an early age is a good starting point to assess the development of the restrained thermal stress and thermal cracking in rigid pavements. This paper presents a numerical early age concrete pavement temperature prediction model. It enables to evaluate the effect of various paving conditions, such as...journal article 2018
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Barnhoorn, A. (author), Verheij, Jeroen (author), Frehner, Marcel (author), Zhubayev, A. (author), Houben, Maartje (author)The transition from recoverable elastic to permanent inelastic deformation is marked by the onset of fracturing in the brittle field. Detection of this transition in materials is crucial to predict imminent failure/fracturing. We have<br/>used an ultrasonic pulse transmission method to record the change in waveform across this transition during...journal article 2018
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Scaling Effective Learning Strategies: Retrieval Practice and Long-Term Knowledge Retention in MOOCsDavis, D.J. (author), Kizilcec, René F. (author), Hauff, C. (author), Houben, G.J.P.M. (author)Large-scale online learning environments such as MOOCs provide an opportunity to evaluate the efficacy of learning strategies in an informal learning context with a diverse learner population. Here, we evaluate the extent to which retrieval practice — recognized as one of the most effective learning strategies — facilitates long-term knowledge...journal article 2018
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Chen, G. (author), Hauff, C. (author), Houben, G.J.P.M. (author)Knowledge tracing serves as a keystone in delivering personalized education. However, few works attempted to model students’ knowledge state in the setting of Second Language Acquisition. The Duolingo Shared Task on Second Language Acquisition Modeling (Settles et al., 2018) provides students’ trace data that we extensively analyze and engineer...conference paper 2018
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Kucherbaev, P. (author), Bozzon, A. (author), Houben, G.J.P.M. (author)A chatbot is an example of a text-based conversational agent. While natural language understanding and machine learning techniques advance rapidly, current fully automated chatbots still struggle to serve their users well. Human intelligence, brought by crowd workers, freelancers or even full-time employees can be embodied in the chatbot logic...journal article 2018
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Mesbah, S. (author), Bozzon, A. (author), Lofi, C. (author), Houben, G.J.P.M. (author)This demo presents SmartPub, a novel web-based platform that supports the exploration and visualization of shallow meta-data (e.g., author list, keywords) and deep meta-data--long tail named entities which are rare, and often relevant only in specific knowledge domain--from scientific publications. The platform collects documents from different...conference paper 2018
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Gong, X. (author), Yang, J. (author), Daamen, W. (author), Bozzon, A. (author), Hoogendoorn, S.P. (author), Houben, G.J.P.M. (author)City-scale events attract large amounts of attendees in temporarily re-purposed urban environments. In this setting, the real-time measurement of the density of attendees stationing in &#x2013; or moving through &#x2013; the event terrain is central to applications such as crowd management, emergency support, and quality of service...journal article 2018
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Post, Vincent E.A. (author), Essink, Gualbert Oude (author), Szymkiewicz, Adam (author), Bakker, M. (author), Houben, Georg (author), Custodio, Emilio (author), Voss, Clifford (author)The Salt Water Intrusion Meetings, or SWIMs, are a series of meetings that focus on seawater intrusion in coastal aquifers and other salinisation processes. 2018 marks the 50th year of the SWIM and the 25th biennial meeting. The SWIM proceedings record half a century of research progress on site characterisation, geophysical and geochemical...journal article 2018
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Davis, D.J. (author), Hauff, C. (author), Houben, G.J.P.M. (author)Crowdsourcing has emerged as an effective method of scaling-up tasks previously reserved for a small set of experts. Accordingly, researchers in the large-scale online learning space have begun to employ crowdworkers to conduct research about large-scale, open online learning. We here report results from a crowdsourcing study (N=135) to evaluate...journal article 2018
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Vollmer, I. (author), Li, G. (author), Yarulina, I. (author), Kosinov, N. (author), Hensen, Emiel J. (author), Houben, Klaartje (author), Mance, Deni (author), Baldus, Marc (author), Gascon, Jorge (author), Kapteijn, F. (author)Although the local geometry of Mo in Mo/HZSM-5 has been characterized before, we present a systematic way to manipulate the configuration of Mo and link it to its catalytic properties. The location and geometry of cationic Mo-complexes, the precursor of the active metal site for methane dehydroaromatization, are altered by directing the way...journal article 2018
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Davis, D.J. (author), Chen, G. (author), Hauff, C. (author), Houben, G.J.P.M. (author)Taking advantage of the vast history of theoretical and empirical findings in the learning literature we have inherited, this research offers a synthesis of prior findings in the domain of empirically evaluated active learning strategies in digital learning environments. The primary concern of the present study is to evaluate these findings with...journal article 2018
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Chen, G. (author), Yang, J. (author), Hauff, C. (author), Houben, G.J.P.M. (author)We present LearningQ, a challenging educational question generation dataset containing over 230K document-question pairs. It includes 7K instructor-designed questions assessing knowledge concepts being taught and 223K learner-generated questions seeking in-depth understanding of the taught concepts. We show that, compared to existing datasets...conference paper 2018
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Davis, D.J. (author), Seaton, Daniel (author), Hauff, C. (author), Houben, G.J.P.M. (author)This paper applies theory and methodology from the learning design literature to large-scale learning environments through quantitative modeling of the structure and design of Massive Open Online Courses. For two institutions of higher education, we automate the task of encoding pedagogy and learning design principles for 177 courses (which...conference paper 2018
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Chen, G. (author), Davis, D.J. (author), Krause, Markus (author), Aivaloglou, E.A. (author), Hauff, C. (author), Houben, G.J.P.M. (author)Massive Open Online Courses (MOOCs) aim to educate the world. More often than not, however, MOOCs fall short of this goal — a majority of learners are already highly educated (with a Bachelor degree or more) and come from specific parts of the (developed) world. Learners from developing countries without a higher degree are underrepresented,...journal article 2018
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Davis, D.J. (author), Kizilcec, René F. (author), Hauff, C. (author), Houben, G.J.P.M. (author)Retrieval practice has been established in the learning sciences as one of the most effective strategies to facilitate robust learning in traditional classroom contexts. The cognitive theory underpinning the "testing effect" states that actively recalling information is more effective than passively revisiting materials for storing information...conference paper 2018
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Mesbah, S. (author), Lofi, C. (author), Valle Torre, M. (author), Bozzon, A. (author), Houben, G.J.P.M. (author)Named Entity Recognition and Typing (NER/NET) is a challenging task, especially with long-tail entities such as the ones found in scientific publications. These entities (e.g. “WebKB”, “StatSnowball”) are rare, often relevant only in specific knowledge domains, yet important for retrieval and exploration purposes. State-of-the-art NER approaches...conference paper 2018
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Mesbah, S. (author), Chen, G. (author), Valle Torre, M. (author), Bozzon, A. (author), Lofi, C. (author), Houben, G.J.P.M. (author)MOOCs promised to herald a new age of open education.<br/>However, efficient access to MOOC content is still hard, thus unneces-<br/>sarily complicating many use cases like efficient re-use of material, or<br/>tailored access for life-long learning scenarios. One of the reasons for this<br/>lack of accessibility is the shortage of meaningful...conference paper 2018