Publication
Understanding Digital Libraries as Open Spaces
Publications associées (44)
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Confronted with complex societal problems, science funding bodies have been calling for the participation of non-scientific actors in the production of allegedly more ‘robust’ knowledge. While in the field of sustainability these trends in science policy h ...
2018Sphere-of-Influence Graphs in Normed Spaces
We showthat any k-th closed sphere-of-influence graph in a d-dimensional normed space has a vertex of degree less than 5dk, thus obtaining a common generalization of results of Furedi and Loeb (Proc AmMath Soc 121(4): 1063-1073, 1994 [1]) and Guibas et al. ...
SPRINGER2018Editorial
Learning is a complex, mostly invisible process that happens across spaces, occurring in the physical world but also increasingly in virtual worlds or web-based spaces. In order to explore what happens in such blended learning experience, there is a need ...
CEUR2017Toward Multimodal Analytics in Ubiquitous Learning Environments
While Ubiquitous Learning Environments (ULEs) have shown several benefits for learning, they pose challenges for orchestration. Teachers need to be aware of the learning process, which is difficult to achieve when it occurs across a heterogeneous set of sp ...
CEUR2017The teacher in the loop: customizing MMLA in blended CSCL scenarios
In across-spaces learning scenarios, evidence needs to be gathered from different spaces to obtain a more complete view of the teaching and learning processes. Multimodal learning analytics (MMLA) enables us to gather data from physical spaces, enriching t ...
2017A Sampling Theory for Non-Decaying Signals
The classical assumption in sampling and spline theories is that the input signal is square-integrable, which prevents us from applying such techniques to signals that do not decay or even grow at infinity. In this paper, we develop a sampling theory for m ...
2017Extreme points in non-positive curvature
A natural analogue of the Krein-Milman theorem is shown to fail for CAT(0) spaces. ...
Polish Acad Sciences Inst Mathematics-Impan2016Towards a novel prediction model for visual interest in daylit renderings
Marilyne Andersen, María Lovísa Ámundadóttir, Siobhan Francois Rockcastle
In spaces where daylight is a primary source of illumination, our visual perception of architecture is largely influenced by the ephemeral composition of sunlight and shadow. To evaluate these perceptual effects, the authors will apply quantitative contras ...
ACM Digital Library2016Spectral methods for tempered fractional differential equations
Jan Sickmann Hesthaven, Lijing Zhao
In this paper, we first introduce fractional integral spaces, which possess some features: (i) when 0 < α < 1, functions in these spaces are not required to be zero on the boundary; (ii)the tempered fractional operators are equivalent to the Riemann-Liouvi ...
2016Space lower bounds for low-stretch greedy embeddings
Greedy (geometric) routing is an important paradigm for routing in communication networks. It uses an embedding of the nodes of a network into points of a space (e.g., R-d) equipped with a distance function (e.g., the Euclidean distance l(2)) and uses as a ...
Elsevier Science Bv2016