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April 22-25, 2003, Santa Clara -Explore. Invent. Connect.


The Coming Ubiquity of Geospatial Annotation
Bryan Field-Elliot, Ping Identity Corporation

Track: Rich Internet Applications
Date: Wednesday, April 23
Time: 1:15pm - 2:00pm
Location: Lafayette/San Tomas/Lawrence

Geoblogging. Virtual Graffiti. Real-time photojournalism. Mass augmented reality. The proliferation of wireless access, the mass amateurization of publishing, and the promise of location-based services all point toward what may be the next “killer” social application category – the combination of location information with existing social content.

Before these applications can be realized, however, much standardization work needs to be done in the areas of location sensing, reporting, representation, and searching.

This session begins with an overview of several compelling new application ideas (topic-based public Geonoting), and continues with a whirlwind tour of proposals for how to unify location sensing techniques (GPS, cell tower affinity or triangulation, and public WiFi IP/LatLon registries), location reporting techniques (HTTP header injection, IP/LatLon registry lookups), location representation techniques (how to encode in HTML, RSS, etc), and location searching and retrieval techniques (wide-area pull/browse, immediate vicinity push-on-demand, and trajectory estimation/pre-fetch cache).

These various protocol additions and application profile recommendations comprise the “GeoStack”, an end-to-end umbrella of relatively minor changes, standards, or techniques which will be necessary to implement in order to establish Geospatial information ubiquity.

Field-Elliot discusses privacy considerations in Geospatial reporting/recording (e.g. permission-based, opt-out-by-default, and location-private content). He also explores various potential business models for adding commercial value to this emerging infrastructure (e.g. Geospatial notaries, Geonote topic hosting, IP/LatLon registries, and the inevitable Googlization).

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