T4.1 – Spatial-semantic visualization and exploration

In this task we will develop a reusable components for visualizing and exploring spatial content. The component will consist of a library of different spatial-semantic visualization and exploration components: A slippy map, which allows users to zoom-to and select a certain geographical area. The slippy map will be based on existing Web map implementations, such as for example OpenLayers1 from Open Source Geospatial Foundation. The implementation will be extended to allow an overlaying of the displayed raster maps with additional information represented in vector formats, such as various types of markers, polygons and curves. A facet filtering component, which displays (a hierarchy of) semantic facets detected in conjunction with the selected map area. Only facets, which have respective adhering objects in the selected area as well as the overall number of objects adhering to each facet in the selected area will be displayed. Depending on the facet type, different selection widgets will allow to specify eligible facet-constraints, e.g date and number ranges and enumeration of facet values. A result view, which lists in addition to markers and regions on the map the retrieved objects adhering to the selected facets. For each individual object in the result set, its properties can be displayed in a configurable way. It will be possible to define templates for the visual presentation of certain spatial objects, e.g. train stations, cities, parks etc. Based on existing vocabularies such templates will display semantic information in a customizable and domain specific way. The components’ usability will be evaluated in the context of their integration into the portals of the project partners, as described in WP5 and WP6. For this reason, we do not plan to evaluate the usability of the widgets “on their own”, as this will be covered by the respective reports. The evaluation findings will be considered for further developments and improvements of the components.

Deliverables

D4.1.1 Initial release spatial-semantic exploration component
D4.1.2 Final Release Spatial-Semantic Exploration Component

Other Tasks in this Workpackage

T4.2 Adaptive spatial-semantic authoring and curation
T4.3 Public-private spatial data co-evolution
T4.4 Spatial social networking
T4.5 Mobile spatial-semantic visualization, exploration and authoring
T4.6 GeoKnow Prototype for Exploratory Spatiotemporal Analysis

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Universität Leipzig , InfAI: Institut für Angewandte Informatik

Funded by

EU Seventh Framework Programme (FP7)

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News

EDF2015 and Linked Data Europe: Big Geospatial Data Workshop ( 2015-11-24T23:46:33+01:00 Alejandra Garcia Rojas)

2015-11-24T23:46:33+01:00 Alejandra Garcia Rojas

In 2015, the European Data Forum took place in Luxembourg on the 16th and 17th November. GeoKnow team had the pleasure to be present at the event with a booth for showing GeoKnow results. The conference welcomed over 700 participants from industry, research, policy makers, and community initiatives form all over Europe. Read more about "EDF2015 and Linked Data Europe: Big Geospatial Data Workshop"

Linked Open Data Switzerland at SWBI2015 ( 2015-10-12T09:56:15+02:00 Daniel Hladky)

2015-10-12T09:56:15+02:00 Daniel Hladky

Daniel Hladky from Ontos presented GeoKnow at the SWBI2015 conference two talks. The first talk was the keynote on October 7, 2015 with the title “Linked Data Service (LINDAS): Status quo of the Linked Data life-cycle and lessons learned“. Read more about "Linked Open Data Switzerland at SWBI2015"

FAGI-gis: fusing geospatial RDF data ( 2015-10-05T13:08:20+02:00 Giorgos Giannopoulos)

2015-10-05T13:08:20+02:00 Giorgos Giannopoulos

GeoKnow introduces the latest version of FAGI-gis, a framework for fusing Linked Data, that focuses on the geospatial properties of the linked entities. Read more about "FAGI-gis: fusing geospatial RDF data"

GeoKnow Public Datasets ( 2015-09-19T16:15:29+02:00 Alejandra Garcia Rojas)

2015-09-19T16:15:29+02:00 Alejandra Garcia Rojas

In this blogpost we want to present three public datasets that were improved/created in GeoKnow project. LinkedGeoData Size: 177GB zipped turtle file URL: http://linkedgeodata.org/ LinkedGeoData is the RDF version of Open Street Map (OSM), which covers the entire planet geospatial data information. Read more about "GeoKnow Public Datasets"

GeoKnow at Semantics 2015, Vienna ( 2015-09-18T15:12:48+02:00 Alejandra Garcia Rojas)

2015-09-18T15:12:48+02:00 Alejandra Garcia Rojas

Several partners of GeoKnow were present this year at the Semantics conference 2015. The previous day of the conference we organised a workshop about the work done during these last three years in GeoKnow. Read more about "GeoKnow at Semantics 2015, Vienna"