OGC
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Engineering Report OGC 15-057
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OGC
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Testbed-11 Incorporating Social Media in Emergency Response Engineering Report
1 Introduction
1.1 Abstract
This OGC
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Engineering Report ER describes approaches to incorporating Social Media as a data source for Emergency Response. The work described in the ER was performed
as part of the Testbed-11 Cross-Community Interoperability service architecture. This ER provides an overview of the data sources for Social Media, discussing discovery aspects
as well as quality assessment approaches.
Two approaches were implemented during Testbed-11. The first was based on the concept of using an OGC Sensor Observation Service SOS for handling humans as
sensors and considered especially from an interoperability perspective. A mapping into the OGCISO Observations and Measurements OM data model is presented and
illustrated with examples from different social media platforms. This is complemented by a description of how data loading from social media platforms into an SOS server can be
achieved. The second approach is based on using Linked Data to integrate content as social “objects” produced by the different social media sites. The ontology for describing
social objects and activities is based on the SocialML ontology
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and can be extended to accommodate new activities and social objects. The integration of social site content was
accomplished with RDF scrapers accessible through a REST API. The merged knowledgebase can be accessed through a GeoSPARQL endpoint.
Another important topic of this report is the use of the OGC Web Processing Service WPS for analyzing the available social media data i.e. detect clusters. Finally, a client
for accessing the provided data sources and processes is introduced.
1.2 Business Value
The findings described in this ER will help to integrate social media content into standards-based geospatial information infrastructures and systems. This way, a new
source of, often up-to-date, information will be made available. Especially in application contexts such as emergency response this will open up new opportunities to achieve
better situational awareness. As a result, not only the capabilities of emergency responders will be improved but also the value of social media content will grow.
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Released by ImageMatters in the context of Testbed-11 http:www.imagemattersllc.comindex.phpgeospatial- semantics
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https:wiki.52north.orgbinviewSensorWebSensorObservationServiceIVDocumentation
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1.3 Keywords
