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Davis, Kristina K. (author), Yates, Stephen J.C. (author), Jellema, Willem (author), Groppi, Christopher E. (author), Baselmans, J.J.A. (author), Kohno, Kotaro (author), Baryshev, Andrey M. (author)Complex field mapping is a powerful tool to characterize the optical performance of astronomical instruments, and has become the standard for characterizing heterodyne array cameras. Recently, an adaptation of the heterodyne beam mapping technique was demonstrated on a single pixel of a direct detector instrument. We present a novel...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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Khalil, Mohammad (author), Davis, Dan (author), Wong, Jacqueline (author)It has been 10 years since the first MOOC was prepared by George Siemens and Stephen Downes on connectivism and connected knowledge at the University of Manitoba. From 25 participants only to hundreds of thousands of students in 2011, MOOCs became a hype in technology-enhanced learning context. Nevertheless, the phenomenon of MOOCs has become...conference paper 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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Bodily, Robert (author), Kay, Judy (author), Aleven, Vincent (author), Jivet, I. (author), Davis, D.J. (author), Xhakaj, Franceska (author), Verbert, Katrien (author)This paper aims to link student facing Learning Analytics Dashboards (LADs) to the corpus of research on Open Learner Models (OLMs), as both have similar goals. We conducted a systematic review of literature on OLMs and compared the results with a previously conducted review of LADs for learners in terms of (i) data use and modelling, (ii)...conference paper 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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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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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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Davis, D.J. (author), Triglianos, V. (author), Hauff, C. (author), Houben, G.J.P.M. (author)Past research in large-scale learning environments has found one of the most inhibiting factors to learners’ success to be their inability to effectively self-regulate their learning efforts. In traditional small-scale learning environments, personalized feedback (on progress, content, behavior, etc.) has been found to be an effective solution...conference paper 2018
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Davis, Chris B. (author), Aid, Graham (author), Zhu, B. (author)Research on value pathways for organic wastes has been steadily increasing in recent decades. There have been few considerably broad overview studies of such materials and their valuation potential in the bio-based economy in part because of the vast multitude of materials and processes that can be used to produce energy carriers, chemicals,...journal article 2017
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Chen, G. (author), Davis, D.J. (author), Krause, Markus (author), Hauff, C. (author), Houben, G.J.P.M. (author)Massive Open Online Courses (MOOCs) aim to educate the world, especially learners from developing countries. While MOOCs are certainly available to the masses, they are not yet fully accessible. Although all course content is just clicks<br/>away, deeply engaging with a MOOC requires a substantial time commitment, which frequently becomes a...conference paper 2017
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Davis, Michael (author), Tenpierik, M.J. (author), Ramirez, Francisco (author), Perez, Maria Elena (author)Up to 44% of EU residents are exposed to noise levels that are detrimental to health. In this context, vertical gardens could play an important role in architectural acoustics, where the main absorber material is the substrate soil. Plants have a beneficial effect for higher frequencies when planted in a large density. In this paper a vertical...journal article 2017
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Davis, D.J. (author), Jivet, I. (author), Kizilcec, René F. (author), Chen, G. (author), Hauff, C. (author), Houben, G.J.P.M. (author)Social comparison theory asserts that we establish our social and personal worth by comparing ourselves to others. In in-person learning environments, social comparison offers students critical feedback on how to behave and be successful. By contrast, online learning environments afford fewer social cues to facilitate social comparison. Can...conference paper 2017
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Sutherland, Michael (author), Griffith-Charles, Charisse (author), Davis, Dexter (author)Hoogsteden and Robertson (1998; 1999) were among very few early publications that supported the idea that consideration is to be given to the extension of “on-land” cadastral system into the offshore. It was circa 2001 that the terms “marine cadastre” or “marine cadastral” were first explicitly used in scholarly media and at professional...conference paper 2016
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Griffith-Charles, Charisse (author), Sutherland, Michael (author), Davis, Dexter (author)Technology has simplified the construction of a 3D cadastre by allowing rapid, remote capture of the data required for the graphic components of the system. Research into using 3D information generated from laser scanning, LiDAr and satellite imagery, and aerial photography for Building Information Management (BIM) has advanced considerably over...conference paper 2016
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Davis, Michael Maks (author), Perez, Maria Elena (author), Tenpierik, M.J. (author), Ramirez, Francisco (author)Noise can become uncomfortable for us in many situations both indoors and outdoors. External noise consists of activities (airplanes flying overhead, traffic on the road, etc.) that are either loud enough to be considered uncomfortable when outdoors, or are of an elevated volume to the extent that they infiltrate buildings at levels considered...conference paper 2016
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Zuiderwijk, A.M.G. (author), Janssen, M.F.W.H.A. (author), Davis, C.B. (author)Open data ecosystems are expected to bring many advantages, such as stimulating citizen participation and innovation. However, scant attention has been given to what constitutes an open data ecosystem. The objective of this paper is to provide an overview of essential elements of open data ecosystems for enabling easy publication and use of open...journal article 2014
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- Bell, J. (author), Lavroff, J. (author), Davis, M.R. (author) report 2013