Institute for Web Science and Technologies · Universität Koblenz - Landau
Institute WeST


Usage of Graph Query Languages in Open Source Java Projects

08.10.19. Graph data models are interesting in various domains, in part because of the intuitiveness and flexibility they offer compared to relational models. [mehr lesen...]

Not My President: How Names and Titles Frame Political Figures

26.09.19. Framing theory studies how topics are presented to audiences in communication. Most framing work focuses on issues and events. [mehr lesen...]

Introduction to our new Web site

19.09.19. You may have noticed that our institute got a new Web site. This talk will give you insights about the novel backend concept of the Web site and how to edit every-day items like lectures. [mehr lesen...]

Querying spatial data in the SemanticGIS project - Towards a new version of GeoSPARQL?

22.08.19. The GeoSPARQL standard is used to define relations between geospatial objects in the semantic web and is in use in many contexts since its emergence in the year 2012. However, due to the experiences in the SemanticGIS project with our project partners we see that the standard cannot hold up to many application cases the GIS community is confronted with thereby hindering its adoption in the GIS community. In particular, lacking support for geometry manipulations, raster data and 3D or even nD coordinates is of concern. This talk presents GeoSPARQL-ext, an extension of GeoSPARQL solving many of the issues the geospatial community has with the current standard and presents application cases which could make use of the new functionality. [mehr lesen...]

A General Approach to Reasoning with Probabilities

15.08.19. We propose a general scheme for adding probabilistic reasoning capabilities to a wide variety of knowledge representation formalisms and we study its properties. Syntactically, we consider adding probabilities to the formulas of a given base logic. Semantically, we define a probability distribution over the subsets of a knowledge base by taking the probabilities of the formulas into account accordingly. This gives rise to a probabilistic entailment relation that can be used for uncertain reasoning. Our approach is a generalization of many concrete probabilistic enrichments of existing approaches, such as ProbLog (an approach to probabilistic logic programming) and the constellation approach to abstract argumentation. [mehr lesen...]

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