wiki.dbpedia.org - DBpediaMobile

2008-05-10 19:07:24

Comparison for /DBpedia Mobile of 2008-05-10 19:07:24 and 2008-05-16 18:58:30

Additions:

<h4>Try it out!</h4><p><span style="padding: 5px">Beijing (<a href="http://beckr.org/DBpediaMobile/emulator.php?url=http%3A%2F%2Fbeckr.org%2FDBpediaMobile%2F%3Fmobile%3Dtrue%26unclutter1%3Dtrue%26unclutterDir%3Dvertical%26lat%3D39.901736577272814%26long%3D116.3895034790039

Deletions:

<h4>Try it out!</h4><p>#>Development Version (works with most current browsers)
<# <span style="padding: 5px">Beijing (<a href="http://beckr.org/DBpediaMobile/emulator.php?url=http%3A%2F%2Fbeckr.org%2FDBpediaMobile%2F%3Fmobile%3Dtrue%26unclutter1%3Dtrue%26unclutterDir%3Dvertical%26lat%3D39.901736577272814%26long%3D116.3895034790039

2008-05-07 19:24:01

Comparison for /DBpedia Mobile of 2008-05-07 19:24:01 and 2008-05-10 19:07:24

Additions:

<h4>Try it out!</h4><p>#>Development Version (works with most current browsers)
Beijing (Phone, Browser) Berlin London IP Location

Deletions:

<h4>Try it out!</h4><p>#>Development Version (preview – Firefox 2 only)
Beijing (Phone, Browser) Berlin London IP Location
Stable Version (all browsers)
Berlin Beijing London IP Location

2008-04-23 08:55:05

Comparison for /DBpedia Mobile of 2008-04-23 08:55:05 and 2008-05-07 19:24:01

Additions:

DBpedia Mobile

DBpedia Mobile is a location-centric DBpedia client application for mobile devices consisting of a map view, the Marbles Linked Data Browser and a GPS-enabled launcher application.

Contents

1. Usage

2. Positioning client for Windows Mobile

3. Credits

4. References

Based on the current GPS position of a mobile device, DBpedia Mobile renders a map containing information about nearby locations from the DBpedia dataset. Geographic locations are currently available for 300,000 of DBpedia's 2.18 million “things”. It uses the Marbles Linked Data Browser to render Fresnel-based views for selected resources, as well as its SPARQL capabilities to build the map view. Starting from the map, users can explore background information about locations and can navigate into DBpedia and other interlinked datasets such as GeoNames, Revyu, EuroStat and Flickr.
<h4>Try it out!</h4><p>#>Development Version (preview – Firefox 2 only)
Stable Version (all browsers)
Windows Mobile client

Usage

Clicking on a resource brings up a summary view of the selected item generated by the Marbles Linked Data Browser. This view includes a short text describing the resource and optionally an image, a link to the resource's foaf:homepage and reviews from the Revyu rating site if existent. If the displayed data contains RDF links into other datasets, the user may click them to obtain a full details view of the referenced resource. In this manner, the user can navigate from the DBpedia dataset into other interlinked datasets. For instance, he could traverse GeoNames' parentFeature link hierarchy to find out more about the city, state and country in which a resource is located.

On mobile devices

On desktops

Core DBpedia datasets (labels, geo-coordinates and categories) are pre-loaded into Marbles' Sesame 2.1 MySQL store

Christian Becker, Christian Bizer: DBpedia Mobile: A Location-Enabled Linked Data Browser. 1st Workshop about Linked Data on the Web (LDOW2008), Beijing, China, April 2008. Paper Slides
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var gallery2 = new gallery($('gallery2'), {

embedLinks: true,
delay: 15000

DBpedia Mobile

DBpedia Mobile is a location-centric DBpedia client application for mobile devices consisting of a map view, a Fresnel-based Linked Data browser and a GPS-enabled launcher application.

Contents

1. 1. Usage

2. 2. Positioning client for Windows Mobile

3. 3. Credits

4. 4. References

Based on the current GPS position of a mobile device, DBpedia Mobile renders a map containing information about nearby locations from the DBpedia dataset. Geographic locations are currently available for 300,000 of DBpedia's 2.18 million “things”.
Starting from the map, users can explore background information about locations and can navigate into DBpedia and other interlinked datasets such as GeoNames, Revyu, EuroStat and Flickr.
<h4>Try it out!</h4><p>#>Map View V2 (preview – Firefox 2 only)
Map View V1 (all browsers)
Marbles Linked Data browser

Windows Mobile client

Map View

Mobile usage

Desktop usage

Marbles Linked Data browser

The Marbles Linked Data browser is a server-side application that formats Semantic Web content for traditional XHTML clients. Colored dots are used to correlate the origin of displayed data with a list of data sources, hence the name Marbles. By performing all formatting, data retrieval and storage activities are performed on the server side rather than on the potentially thinly equipped client, the view generation can touch on large amounts of data and requests can be answered relatively quickly.

<h3>A <i>full details view</i> of <a href="http://beckr.org/marbles?uri=http://dbpedia.org/resource/Beijing_Capital_International_Airport&lang=en&mobile=false">Beijing Capital Airport</a> that includes data from DBpedia, Geo Names and the flickr wrappr.</h3>
<p></p>
<a href="http://beckr.org/marbles?uri=http://dbpedia.org/resource/Beijing_Capital_International_Airport&lang=en&mobile=false" title="Open using Marbles" class="open"></a>
<img src="" class="full" />

</div>
<div class="imageElement">

<h3>A <i>full details view</i> of <a href="http://beckr.org/marbles?lang=en&uri=http%3A%2F%2Fwww.w3.org%2FPeople%2FBerners-Lee%2Fcard%23i">Tim Berners-Lee's FOAF profile</a> with data sources indicated using “marbles”</h3>
<p></p>
<a href="http://beckr.org/marbles?lang=en&uri=http%3A%2F%2Fwww.w3.org%2FPeople%2FBerners-Lee%2Fcard%23i" title="Open using Marbles" class="open"></a>
<img src="" class="full" />

</div>

Data retrieval

Data is retrieved from multiple sources and integrated into a single graph that is persisted across user sessions. When provided with the URI of a resource to display, Marbles tries to dereference it. In parallel, it queries Sindice for datasources that contain information about the given resource, and Revyu for reviews.
In a similar manner as the Semantic Web Client Library, Marbles follows specific predicates found in retrieved data such as owl:sameAs and rdfs:seeAlso in order to gain more information about a resource and to obtain human-friendly resource labels.

Views

Apart from a full details view that lists all known properties for a resource, Marbles allows for the generation of Fresnel-based views that are complemented by corresponding CSS stylesheets.
There are currently two views in use:

The summary view features a short text describing the resource and optionally an image, a link to the resource's foaf:homepage and reviews from the Revyu rating site if existent.
The photo view provides photos for a given resource. These are often provided by DBpedia, FOAF data the flickr wrappr.
Core DBpedia datasets (labels, geo-coordinates and categories) are locally stored on Virtuoso Server for map data lookup

Marbles uses the following components:

Sesame 2 for the browser's data model and storage of cached data
SIMILE Fresnel Engine and IsaViz FSL (both were tweaked to support provenance etc.)
SAXON XSLT and XQuery Processor to generate XHTML representations of the rendered Fresnel trees
The dereferencer is partially based on the Semantic Web Client Library and makes use of the Apache Commons HTTP Client for optimized retrieval

Christian Becker, Christian Bizer: DBpedia Mobile: A Location-Enabled Linked Data Browser. 1st Workshop about Linked Data on the Web (LDOW2008), Beijing, China, April 2008.

2008-04-22 11:13:58

Comparison for /DBpedia Mobile of 2008-04-22 11:13:58 and 2008-04-23 08:55:05

Additions:

Based on the current GPS position of a mobile device, DBpedia Mobile renders a map containing information about nearby locations from the DBpedia dataset. Geographic locations are currently available for 300,000 of DBpedia's 2.18 million “things”.
Starting from the map, users can explore background information about locations and can navigate into DBpedia and other interlinked datasets such as GeoNames, Revyu, EuroStat and Flickr.

Try it out!

Map View V2 (preview – Firefox 2 only)
Beijing (Phone, Browser) Berlin London IP Location
Map View V1 (all browsers)
Berlin Beijing London IP Location
Marbles Linked Data browser

Windows Mobile client

Map View

DBpedia Mobile's initial view is a browser-based area map that indicates the user's position and nearby DBpedia resources with appropriate labels and icons. The user's position is provided to the application in the query string by a supplemental launcher application that runs natively on the device (see section Positioning).
Selected YAGO categories are mapped to icons, and the display may be limited to specific resource types such as Museums or Train Stations from within a settings pane. Here, the preferred language for labels and abstracts may also be selected from the 14 languages supported by DBpedia.
Clicking on a resource brings up a summary view of the selected item generated by the Marbles Linked Data Browser. This view includes a short text describing the resource and optionally an image, a link to the resource's foaf:homepage and reviews from the Revyu rating site if existent. If the displayed data contains RDF links into other datasets, the user may click them to obtain a full details view of the referenced resource. In this manner, the user can navigate from the DBpedia dataset into other interlinked datasets. For instance, he could traverse GeoNames' parentFeature link hierarchy to find out more about the city, state and country in which a resource is located.

Mobile usage

On a mobile device, the map view can be panned by dragging it on the touch screen, or zoomed using the provided controls. It is designed for displays with at least QVGA (320x240 pixels) resolution. Currently, only Opera Mobile 8 is known to work, as most other mobile browsers don't have adequate Document Object Model (DOM) Level 1 and 2 support to host the underlying Google Maps API. It does work on the iPhone, but is currently not really usable, as iPhone specifics haven't been implemented yet (notably, dragging and screen size parameters).

Desktop usage

The application may also be accessed on desktop computers. While GPS-based positioning is likely of limited concern in this scenario, the desktop view can be used to explore DBpedia resources around the world. The application has been successfully tested with Firefox 2, Internet Explorer 7, Safari 3 and Opera 9.

Marbles Linked Data browser

</div>
<div class="imageElement">

</div>

2008-04-22 11:09:33

Comparison for /DBpedia Mobile of 2008-04-22 11:09:33 and 2008-04-22 11:13:58

Additions:

<h3>A Fresnel-generated <i>summary view</i> of a resource that includes a review obtained from Revyu</h3>
<h3>A <i>full view</i> of all the resource's properties</h3>
<img src="" class="full" />

Deletions:

<h3>A Fresnel-generated <i>summary view</i> of a resource that includes a review obtained from Revyu.</h3>

2008-04-22 04:52:51

Comparison for /DBpedia Mobile of 2008-04-22 04:52:51 and 2008-04-22 11:09:33

Additions:

<div class="imageElement">
<img src="" class="full" />
<h3>The same view with Chinese labels</h3>
<img src="" class="full" />
<img src="" class="full" />
<img src="" class="full" />

</div>

<h3>Simple filter builder</h3>
<img src="" class="full" />

<h3>Linked Data creation options</h3>
<img src="" class="full" />

<h3>A DBpedia resource is inferred from the user's location</h3>
<img src="" class="full" />

<h3>A photo uploaded using DBpedia Mobile shows up on the resource display</h3>
<img src="" class="full" />

</div>

Deletions:

</div>
#>Based on the current GPS position of a mobile device, DBpedia Mobile renders a map containing information about nearby locations from the DBpedia dataset. Geographic locations are currently available for 300,000 of DBpedia's 2.18 million “things”.
Starting from the map, users can explore background information about locations and can navigate into DBpedia and other interlinked datasets such as GeoNames, Revyu, EuroStat and Flickr.

Try it out!

Map View V2 (preview – Firefox 2 only)
Beijing (Phone, Browser) Berlin London IP Location
Map View V1 (all browsers)
Berlin Beijing London IP Location
Marbles Linked Data browser

Windows Mobile client

Map View

Mobile usage

Desktop usage

Marbles Linked Data browser

</div>
<div class="imageElement">

</div>

2008-04-04 17:43:18

Comparison for /DBpedia Mobile of 2008-04-04 17:43:18 and 2008-04-22 04:52:51

Additions:

<h4>Try it out!</h4><p>#>Map View V2 (preview – Firefox 2 only)
Beijing (Phone, Browser) Berlin London IP Location
Map View V1 (all browsers)
Marbles Linked Data browser <#

Deletions:

<h4>Try it out!</h4><p>#>Map View:
Marbles Linked Data browser: <#

2008-04-04 17:36:05

Comparison for /DBpedia Mobile of 2008-04-04 17:36:05 and 2008-04-04 17:43:18

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embedLinks: true,

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2008-04-04 17:35:32

Comparison for /DBpedia Mobile of 2008-04-04 17:35:32 and 2008-04-04 17:36:05

Additions:

<h4>Try it out!</h4><p>#>Map View:

Deletions:

<h4>Try it out!</h4> #><p>Map View: