Amin Abdalla

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This paper presents a Linked-Data-driven Web portal for the field of learning analytics. The portal allows users to browse the linked datasets and explore data about researchers, conferences, and publications. Additionally, users can interact with various dynamic visualization applications and perform analysis, e.g., study temporal change of research(More)
Current personal information management (PIM) tools do not sufficiently recognize the spatio-temporal, hierarchical, or conceptual relations of tasks that constitute our plans. Using behavioral observation methods we analyzed people planning a trip to attend a conference taking place in a region they had little or no prior familiarity with. The resulting(More)
Activity is an important concept in many fields, and a number of activity-related ontologies have been developed. While suitable for their designated use cases, these ontologies cannot be easily generalized to other applications. This paper aims at providing a generic ontology design pattern to model the common core of activities in different domains. Such(More)
Recent years have witnessed a growing production of Volunteer Geographic Information (VGI). This led to the general availability of semantically rich datasets, allowing for novel ways to understand, analyze or generalize urban areas. This paper presents an approach that exploits this semantic richness to extract urban settings, i.e., conceptually-uniform(More)
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