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Re: Yet Another LOD cloud browser

From: Kingsley Idehen <kidehen@openlinksw.com>
Date: Fri, 15 May 2009 14:29:44 -0400
Message-ID: <4A0DB498.3070907@openlinksw.com>
To: Sherman Monroe <sdmonroe@gmail.com>
CC: Hugh Glaser <hg@ecs.soton.ac.uk>, "semantic-web@w3.org" <semantic-web@w3.org>, Linked Data community <public-lod@w3.org>, David Huynh <dfhuynh@alum.mit.edu>
Sherman Monroe wrote:
> Hi Hugh,
>
> On Fri, May 15, 2009 at 4:54 AM, Hugh Glaser <hg@ecs.soton.ac.uk 
> <mailto:hg@ecs.soton.ac.uk>> wrote:
>
>     Dear Sherman,
>     It's great to have more activity, and all strength to you.
>     However, I would like to ask if you could modify some of your
>     description to more accurately reflect what it is doing.
>     Referring to the dataset as the "public LOD cloud instance of
>     Virtuoso" suggests that it is browsing all the LOD data, which it
>     is not.
>
>
>
> Thanks so much for your insightful point, it's very well taken.
>
> I have added a link to the about page for the instance, which contains 
> data about the VoiD graph <http://lod.openlinksw.com/void/Dataset> 
> that lists the datasets currently browsable.
The VoiD graph is layered:

1. Top --- Graph Groups
2.  Bottom -- Actual Named Graphs

You can scope SPARQL to items 1 or 2.

As for what in the instance:

1. RDF data set dumps (the one published to ESW Wiki and others)
2. Progressively crawled data that follows a number of sitemap.xml links
3. Progressively crawled data from PingTheSemanticWeb

I hope this clarifies matters.

Kingsley
>
>
>  
>
>     Also, I am not sure it is right to call it a "linked data
>     browser"; I can't work out how to use it to browse any other sites
>     than the Virtuoso EC2 one.
>
>
>
> Hmmm, I dunno, I think it's an accurate description, or at least the 
> best I could come up with. I believe if a browser allowed navigation 
> of only one triple (a subject linked to an object), it constitutes a 
> linked data browser.
>
>
> Best,
> -sherman
>  
>
>
>     Best
>     Hugh
>     PS Sorry to those who feel I have been here before, but I think
>     there are important things here.
>
>     --
>     Hugh Glaser,  Reader
>                  Dependable Systems & Software Engineering
>                  School of Electronics and Computer Science,
>                  University of Southampton,
>                  Southampton SO17 1BJ
>     Work: +44 (0)23 8059 3670, Fax: +44 (0)23 8059 3045
>     Mobile: +44 (0)75 9533 4155, Home: +44 (0)23 8061 5652
>     http://www.ecs.soton.ac.uk/people/hg
>
>
>
>     On 13/05/2009 18:42, "Sherman Monroe" <sdmonroe@gmail.com
>     <mailto:sdmonroe@gmail.com>> wrote:
>
>     Hi All,
>
>     Taking inspiration from Longwell[1] and Parallax[2], I present yet
>     another linked data browser[3]. It uses the Virtuoso Facets Web
>     service API [4] and runs against the public LOD cloud instance of
>     Virtuoso [5]. I believe such faceted search UIs could be a nice
>     compromise between SPARQL and a full-blown Cypher-based NL user
>     interface[6].
>
>     Feedback appreciated.
>
>     Hints:
>
>     - Click a breadcrumb at the top to navigate your query path
>     - Click "Your query" to view the filter details, click the nodes
>     there to navigate the path, click the icons there to modify the filter
>     - Click the green plus sign button to add a filter
>     - Click the blue undo button to unbound a node value
>
>     Notes:
>
>     I was amazed in the many instances where I got better results from
>     LOD dataspace than from Google/Technorati/Wikipedia. For example,
>     searching Monopoly, then filtering to the
>     umbel-sc:MentalSituations category gave me a nice (and in some
>     cases humorous) list of Monopoly knock-offs. I tried finding such
>     a list on the WWW with no luck
>     <http://www.google.com/search?q=Monopoly%20knockoffs> . Kingsley
>     tells me that Entity Rank [4] has to do with this, but I wonder
>     whether this quality will stick as the cloud increases.
>
>
>     References:
>     [1] http://simile.mit.edu/wiki/Longwell
>     [2] http://mqlx.com/~david/parallax/
>     <http://mqlx.com/%7Edavid/parallax/>
>     [3] http://ec2.monrai.com:8890/facets
>     [4] http://lod.openlinksw.com/fct/facet_doc.html
>     [5] http://lod.openlinksw.com
>     [6] http://cypher.monrai.com
>
>     Enjoy,
>
>
>
>
> -- 
>
> Thanks,
> -sherman
>
> I pray that you may prosper in all things and be healthy, even as your 
> soul prospers
> (3 John 1:2)


-- 


Regards,

Kingsley Idehen	      Weblog: http://www.openlinksw.com/blog/~kidehen
President & CEO 
OpenLink Software     Web: http://www.openlinksw.com
Received on Friday, 15 May 2009 18:30:23 UTC

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