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Re: Yet Another LOD cloud browser

From: Kingsley Idehen <kidehen@openlinksw.com>
Date: Fri, 15 May 2009 20:31:11 -0400
Message-ID: <4A0E094F.9020706@openlinksw.com>
To: Hugh Glaser <hg@ecs.soton.ac.uk>
CC: Sherman Monroe <sdmonroe@gmail.com>, "semantic-web@w3.org" <semantic-web@w3.org>, Linked Data community <public-lod@w3.org>, David Huynh <dfhuynh@alum.mit.edu>
Hugh Glaser wrote:
> Hi Kingsley,
> I think you were doing the conflating, which is why you confused me talking about tabs :-)
> I was never talking about anything other than
> http://ec2.monrai.com:8890/facets/
> being labelled a "linked data browser".
>   
Ah! I saw that part, but I naturally responded to the: what Sherman is 
doing (based on my proximity to him).

He just isn't using the Sponger which is the HTTP URI de-referencing 
engine within Virtuoso, since his first point of call was the Faceted 
Browsing Engine which is scoped to local store data :-)

> In fact, if you see my other post, you will see that I suggest http://lod.openlinksw.com/ as a linked data browser!
>   
Sure :-)

Too much data today !

Kingsley
> Best
> Hugh
>
>
> On 16/05/2009 01:06, "Kingsley Idehen" <kidehen@openlinksw.com> wrote:
>
> Hugh Glaser wrote:
>   
>> I have difficulty in interpreting what you say - we are looking at the same "linked data browser" page?:
>> http://ec2.monrai.com:8890/facets/
>> All I can see is a page that says: "Lookup things named "" " So the only possibility of linked data browsing is to put in something with a name.
>> So I put something topical in (from this list).
>> Since I see
>> ...
>>   <Station rdf:about="http://ontologi.es/rail/stations/gb/MAN">
>>     <foaf:name xml:lang="en">Manchester Piccadilly</foaf:name>
>> ...
>> I try "Manchester Piccadilly" and get some response, but nothing leads me to
>> http://ontologi.es/rail/stations/gb/MAN.rdf or any of the data I find there.
>> Similarly topical from this list, I find no way of browsing http://foaf.qdos.com/lastfm/people/keithalexander#me or getting to that page by searching for "Keith Alexander".
>>
>>     
> You are kind of conflating two things:
>
> 1.  http://ec2.monrai.com:8890/facets/  -- a client interacting with a
> REST API
> 2.  http://lod.openlinksw.com -- an instance of a Quad Store (Virtuoso)
> that includes a Faceted Browsing Engine that is also accessible via REST
> APIs (in addition to the  SPARQL protocol and other services)
>   
>> I also see no way of doing "3. Raw URI Lookup" of this URI.
>>
>>     
> You can do a raw URI lookup at: http://lod.openlinksw.com , there are 3
> Tabs on the home page (self explanatory etc..).
>   
>> I assert that if this is a "linked data browser", then since
>> http://ontologi.es/rail/stations/gb/MAN.rdf conforms (I think) to "How to Publish Linked Data on the Web", then I should be able to browse it using the browser.
>>
>>     
> My responses have nothing to do with: http://ec2.monrai.com:8890/facets/ .
>
> I am sure you know ODE can do what you describe.
>
>   
>> If I can't, then it is not a "linked data browser".
>>
>>     
>
> If you are referring to: http://lod.openlinksw.com, then I am sure you
> know ODE [1] is just a VAD installation away, we just haven't installed
> ODE or enabled sponging on this instance because it is still a in "hot
> staging" mode.
>   
>> Of course, this browser is very capable of browsing your excellent single site, but that is not the same thing, I am sorry to say.
>>
>> Best
>> Hugh
>> PS
>> Thank you for pointing out this is not in EC2.
>>
>>     
> http://ec2.monrai.com:8890/facets/ -- is on EC2. I am not taking about
> it though.
>
>
>   
>> I have difficulty working out what is in the cloud and what is not, as it appears to be opaque, which I think is the idea.
>>
>>     
> Maybe, but I think we are done with what this means - in our world view
> -  in prior conversations etc..
>
> The most important thing Sherman is trying to do is provide an
> alternative interface to <http://lod.openlinksw.com> and validate the
> prowess of the REST API that was built to address the challenge known
> as: Web Scale Faceted Browsing :-)
>
> As per my response to David earlier, more interesting revelations to
> come next week.
>
>
>
> Kingsley
>   
>> On 15/05/2009 21:16, "Kingsley Idehen" <kidehen@openlinksw.com> wrote:
>>
>> Hugh Glaser 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.
>>> 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.
>>>
>>>
>>>       
>> Hugh,
>>
>> What do you mean by: I can't work out how to use it to browse any other
>> sites than the Virtuoso EC2 one? For starters, this isn't an EC2 hosted
>> instance. Its a huge Quad Store with 4.5 Billion+ (and counting)
>> triples. You find entities and their descriptions via:
>>
>> 1. Full Text Search Patterns
>> 2. Entity URI Lookup by Label
>> 3. Raw URI Lookup
>>
>> There is a Tab for each.
>>
>> When you find an entity and open up its description, you can click on
>> "Statistics" to explore other relationships and/or how we've handle
>> owl:sameAs, IFPs etc..
>>
>> If the above, don't get you where you want to be, then you can also
>> start from the VoiD graph at: http://lod.openlinksw.com/void/Dataset.
>> And of course, if all fails, you can simply use the SPARQL endpoint at:
>> http://lod.openlinksw.com/sparql .
>>
>> If data is missing simply give me an example of a query that works in
>> your data space and we'll look into why its missing in ours.
>>
>> Kingsley
>>
>>     
>>> 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> 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/
>>> [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,
>>>
>>>
>>>
>>>
>>>       
>> --
>>
>>
>> Regards,
>>
>> Kingsley Idehen       Weblog: http://www.openlinksw.com/blog/~kidehen
>> President & CEO
>> OpenLink Software     Web: http://www.openlinksw.com
>>
>>
>>
>>
>>
>>
>>
>>     
>
>
> --
>
>
> Regards,
>
> Kingsley Idehen       Weblog: http://www.openlinksw.com/blog/~kidehen
> President & CEO
> OpenLink Software     Web: http://www.openlinksw.com
>
>
>
>
>
>
>   


-- 


Regards,

Kingsley Idehen	      Weblog: http://www.openlinksw.com/blog/~kidehen
President & CEO 
OpenLink Software     Web: http://www.openlinksw.com
Received on Saturday, 16 May 2009 00:31:49 UTC

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