- From: Kingsley Idehen <kidehen@openlinksw.com>
- Date: Sun, 29 Mar 2020 13:57:38 -0400
- To: public-lod@w3.org
- Message-ID: <f3677bf8-e5cb-9e16-ad9c-ec3c617e0c70@openlinksw.com>
On 3/29/20 6:22 AM, Pouya Salehpour wrote:
> Kudos to your efforts. I have also a little doubt about feasibility of
> running queries against such a knowledge graph (KG).
> I could not run the example query:
> http://covid.geog.ucsb.edu:7200/sparql?savedQueryName=Max%20Confirmed%20Cases&owner=admin&execute
> due to "QueryTimeoutErrorException". Note the current KG has around
> 62914 triples (if I am mistaken about the number please correct me)
> and the given query is not the most complicated one.
Hi Pouya,
"One Size doesn't fit all" in any realm of computing, so why would that
be any different in relation to Knowledge Graphs?
One of the benefits of deploying structured data using RDF, and
deploying it using Linked Data principles, is that you simply lookup
hyperlinks to get at data.
One of the benefits of SPARQL Query Service endpoints is that you can
use a declarative Query Language for operating on Linked Data hosted by
a DBMS or Store.
One of the benefits of publishing an RDF dump is that other SPARQL
endpoints and Linked Data deployment service providers are added to the
mix which increases availability and overall utility.
The LOD Cloud Knowledge Graph is a live showcase of the benefits above.
Thus, if one endpoint is down you can ask for other access points to the
same data etc.. At the end of the day this is all about a fine-grained
Data Network with lots of connection types etc..
Kingsley
>
>
>
> On Sat, Mar 28, 2020 at 7:17 AM Kingsley Idehen
> <kidehen@openlinksw.com <mailto:kidehen@openlinksw.com>> wrote:
>
> On 3/27/20 1:19 PM, Krzysztof Janowicz wrote:
> > Dear all,
> >
> > This is an update on our open knowledge graph about COVID-19.
> >
> > In our knowledge graph, we have:
> > (1). COVID19 cases for countries and regions (data from Johns
> > Hopkins University)
> > (2). Airlines that are suspended due to COVID19 (data are
> partially
> > donated from Aviation Edge and partially from manual collection)
> > (3). Quarantine policies across the world (manually collected)
> > (4). Relief aids from NGO (manually collected)
> > (5). Regions on multiple levels
> > (6). Local event data such as cancellations (so far by example
> only)
> > (7). Supply chain disruptions (so far by example only)
> >
> > We are updating our KG by adding more resources. Examples include:
> > (1). Supply chains from wikidata
> > (2). Virus strain data (we are collaborating with UCSD on this part
> > right now)
> > (3). Research articles from Kaggle (Thanks to Pieter, we will
> > integrate your KG to ours)
> >
> > This KG can be visualized at:
> >
> http://covid.geog.ucsb.edu:7200/graphs-visualizations?config=48691118befc47e4a6a6aabde78cd73d
> >
> >
> > Example query:
> >
> http://covid.geog.ucsb.edu:7200/sparql?savedQueryName=Max%20Confirmed%20Cases&owner=admin&execute
> >
> >
> > Query endpoint: http://covid.geog.ucsb.edu:7200/sparql and
> > http://covid.geog.ucsb.edu:7200/repositories/COVID-19
> >
> > Raw RDF: use the export at http://covid.geog.ucsb.edu:7200/graphs
> >
> > Please keep in mind that we are constantly changing the data and
> even
> > the underlying ontology; things will break at times.
> >
> > We hope this can be another initiative for our community to
> contribute
> > to such a global challenge. Any suggestions and/or interests of
> > collaborations are *most* welcome.
> >
> > Krzysztof
>
>
> Great stuff !
>
> I'll digest in the coming hours re exposure and integration into
> some of
> the pieces we've been putting together etc..
>
> Others:
>
> The more of this the better.
>
> We are a unique situation where the work produced by this community is
> going to provide tangible and practical benefits towards the fight
> against this terrible COVID-19 pandemic.
>
> May the Linked Open Data FORCE be with you all :)
>
> --
> Regards,
>
> Kingsley Idehen
> Founder & CEO
> OpenLink Software
> Home Page: http://www.openlinksw.com
> Community Support: https://community.openlinksw.com
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>
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> http://kidehen.blogspot.com
>
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>
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> :
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>
>
--
Regards,
Kingsley Idehen
Founder & CEO
OpenLink Software
Home Page: http://www.openlinksw.com
Community Support: https://community.openlinksw.com
Weblogs (Blogs):
Company Blog: https://medium.com/openlink-software-blog
Virtuoso Blog: https://medium.com/virtuoso-blog
Data Access Drivers Blog: https://medium.com/openlink-odbc-jdbc-ado-net-data-access-drivers
Personal Weblogs (Blogs):
Medium Blog: https://medium.com/@kidehen
Legacy Blogs: http://www.openlinksw.com/blog/~kidehen/
http://kidehen.blogspot.com
Profile Pages:
Pinterest: https://www.pinterest.com/kidehen/
Quora: https://www.quora.com/profile/Kingsley-Uyi-Idehen
Twitter: https://twitter.com/kidehen
Google+: https://plus.google.com/+KingsleyIdehen/about
LinkedIn: http://www.linkedin.com/in/kidehen
Web Identities (WebID):
Personal: http://kingsley.idehen.net/public_home/kidehen/profile.ttl#i
: http://id.myopenlink.net/DAV/home/KingsleyUyiIdehen/Public/kingsley.ttl#this
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Received on Sunday, 29 March 2020 17:57:55 UTC