Author Archives: Uroš Milošević

GeoKnow at Belgrade Fair

The GeoKnow project was presented at the recently finished international science and technology fair in Belgrade, Serbia, the largest event of its kind in the region, held from May 11 through 15. The Institute Mihajlo Pupin team used the opportunity to present the goals and accomplishments of the project, as well as PUPIN’s own results, such as GEM, the mobile semantic geospatial browser, and ESTA-LD, the exploratory spatiotemporal analytics tool for Linked Data, both outcomes of the GeoKnow Work Package 4 efforts, to a wider audience.

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Geospatial-semantic Exploration on the Move

A typical tourist scenario is hard to picture without a map. Yet, such a scenario implies you are not familiar with your surroundings and, therefore, often not sure how to find the things that are of interest to you. Typical geospatial browsers will provide you with common exploration tools that will most often include a slippy map combined with keyword search, categorized points of interest (POIs) and a fixed set of filters. But, all of these imply either that you know what it is you’re looking for, or that the preset collection of POIs and criteria will be enough to satisfy your needs. In real life, however, those needs will often be affected by the given context, which is, in turn, dependent on multiple, dynamic factors, such as the place you’re visiting, your mood, interests, background etc. Imagine using your favorite geospatial browser to answer the following question:

Where are the nearest buildings designed by Frank Lloyd Wright, typical of the Prairie School movement?

GEM (Geospatial-semantic Exploration on the Move) is the very first geospatial exploration tool that offers a rich mobile experience and overcomes the abovementioned limitations of conventional solutions by exploiting all strengths of the Linked Open Data paradigm, such as built-in semantics in open, crowd-sourced knowledge found in publicly available sources, such as DBpedia, loaded and filtered on-demand, according to user’s needs, in order to prevent maps from overpopulating.