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Map4RDF-iOS: Geospatial Data Tool for iOS Users

Map4RDF-iOS is a prototype tool utilizing Linked Data vocabularies for end users to access geospatial and statistical data on iOS devices. Features include multiple map servers, customizable queries, and data clustering. Limitations include single platform support and non-editable data.

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Map4RDF-iOS: Geospatial Data Tool for iOS Users

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  1. D2.5Proof-of-Concept EvaluationforModelling Time and Space

  2. Motivation (I) • IncreasingamountofgeospatialdatabeingpublishedasLinked Data • LinkedGeoData • OrdnanceSurvey, IGN Spain, IGN France, etc. • European Environmental Agency • ... • Different vocabularies (heterogeneity) • GeoSPARQL • NeoGeo • W3CBasic GeoVocabulary • theISAProgrammeCoreLocationVocabulary • schema.org’scoordinates and polygons 11/02/11

  3. Motivation (II) • Besides, geospatial data can be combinedwithstatistical data, sensor data, etc., whichalsoprovide a temporal perspective • Again, different (standardised) vocabularies • W3C RDF Data Cube • Semantic Sensor Network Ontology

  4. Deliverableobjective • Implement and describe a prototypetoolthatmakes use of data accordingto a combination of thesevocabularies • Map4RDF-iOS • https://itunes.apple.com/en/app/map4rdf-lite/id828604407?mt=8 • Developed in parallelto Map4RDF • http://map4rdf.oeg-upm.net/ • Two demos presented • ISWC2013 Semantic Sensor Network workshop (SSN2013). Sydney, October 2013 • W3C/OGC LinkingGeospatial Data Workshop. Google Campus, London, March 2014

  5. Map4RDF-iOS Map4RDF-iOS Description • Endusers • Citizens/ non-geographers / LGD providers 5

  6. Map4RDF-iOS mainfeatures Map4RDF-iOS Description • iOSmobiledevices(v5 tov7) withoptimisedmemorymanagement • Multiplemap servers (OSM, Google, Apple, Nokia) • Data • Statisticaldata modelled as W3C's DataCube • Multiplegeospatial data models: W3C Geo XG, GeoLinkedData, and WKT/GeoSPARQL • Clustering of data points • Customizablebyendusers, e.g. definition of SPARQL endpoints and queries 6

  7. Map4RDF-iOS limitations Map4RDF-iOS Description • Single platform (iOS) • WorkingwithTitaniumAppceleratortoprovide a combination of native + HTML5 widgets • Onlysupportfor (non-authenticated) SPARQL endpoints. • Onemap server and oneendpoint at a time. • No data edition • Connectivity module tosave & share configurations, snapshots, and LGD datasets 10

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