W3C

- DRAFT -

SV_MEETING_TITLE

01 Oct 2012

See also: IRC log

Attendees

Present
+1.510.705.aaaa, +31.62.427.aabb, +1.715.389.aacc, +1.206.732.aadd, EricP, [IPcaller], +1.603.727.aaee, +34.65.672.aaff, mikel_egana, +1.613.293.aagg, +31.62.427.aahh
Regrets
Chair
SV_MEETING_CHAIR
Scribe
mscottm

Contents


<egonw> moin

http://www.ncbi.nlm.nih.gov/pubmed/22449719

<ericP> test

<egonw> pong

<mikel_egana> that's mikel

http://www.ncbi.nlm.nih.gov/pubmed/22449719

Processors could, for example, offer a virtual SPARQL endpoint over the

mapped relational data, or generate RDF dumps, or offer a Linked Data

interface.' Michael and Simon pointed out that the use of the word interface can be confusing here.

Scott: Integrated the Translating Standards article (pubmed URI above) into an answer to Question 6: Does all data need to be mapped to the same ontologies in order to achieve interoperability?
... can read a draft of that in the html attachment.
... can read a draft of that in the html attachment sent with the announcement today.

<Simon asks about the mapping using SWObjects, Scott, then Eric P. answer>

<michel> greetings

Eric: The value of linked data to a SPARQL user is that it provides a good mechanism for people to reuse identifiers when they should.
... Linked data can provide information about a URI term by just pasting it into their browser.

<egonw> agreed...

Eric: Linked data means I can do a GET on any of the URLs in it.

<egonw> dereferencable versus sparql

<egonw> right, and the GET returns at least RDF (in some form) but could also return HTML (e.g. depending on content negotiation)

I think that LD people will insist on the LD returning RDF (that is possibly rendered for humans).

Eric explains what is meant by the term "Linked Data" - doesn't necessarily mean "connected data", but refers to the http behavior of links (see description of GET above).

mikel - seems like we can hear you typing.

mikel - seems like we can hear you typing - please mute.

<egonw> ummm... likes rather than needs...

<mikel_egana> sorry :-(

no prob, can't hear it anymore :)

<michel> i think you're both right.

<michel> linked data is both providing data on the web, and creating links between previously unlinked data

<egonw> re Q11: there the thing was in the paper, AFAIK, about whether you could 'spider' it?

<egonw> re Q11: there the thing was in the paper, AFAIK, about whether you could 'spider' it

<egonw> SPARQL end points cannot be spidered

<egonw> because resources cannot be pointed to in a SPARLQ end point

<egonw> breaking the web of LOD

Thanks Egon. Bingo. Yes, we did.

<michel> egon, you can easily setup an web interface over a SPARQL endpoint

<michel> and it can then be spidered

I think that those are two different types of spidering (or crawling). One uses GET, the other uses SPARQL queries, non?

<egonw> michel: indeed, but that would not be a SPARQL end point anymore

<egonw> but a linked data layer *in addition* to...

SPARQL Select results are tabular and could result from querying linked data or a SPARQL endpoint without Linked Data (TM).

<ericP> SPARQL SELECT returns the results of searching over an RDF graph which ideally complies with the Linked Data Principles

<ericP> http://www.w3.org/DesignIssues/LinkedData.html

<egonw> btw, SPARQL can also host RDF which is 100% incompatible with linked data. E.g. this triple: http://localhost:8091/foo/bar owl:sameAs http://localhost:8099/foo/cafe

<egonw> :)

Scott (at beginning of call): noticed that our correction to have the CKAN - The Data Hub reference point to http://thedatahub.org were lost somewhere..

<egonw> yes (I think it will be hard for our audience anyway... that's at least my observation in Open PHACTS)

<egonw> thanx all

<mikel_egana> thx

<egonw> yes

<mikel_egana> bye

bye

<egonw> last time for me was at SARA/CWI in 2009 ?

<scribe> ACTION: Eric to add a bit to intro defining Linked Data vs. SPARQL [recorded in http://www.w3.org/2012/10/01-hcls-minutes.html#action01]

<scribe> ACTION: Michael to add a piece to Q6 mentioning the situation where RDF data have some unplanned overlap (example given was disease and drug). [recorded in http://www.w3.org/2012/10/01-hcls-minutes.html#action02]

<scribe> ACTION: Scott will keep adding straws to his strawman extension to Q6 (incorporating the mapping approach described in "Translating.."). [recorded in http://www.w3.org/2012/10/01-hcls-minutes.html#action03]

Summary of Action Items

[NEW] ACTION: Eric to add a bit to intro defining Linked Data vs. SPARQL [recorded in http://www.w3.org/2012/10/01-hcls-minutes.html#action01]
[NEW] ACTION: Michael to add a piece to Q6 mentioning the situation where RDF data have some unplanned overlap (example given was disease and drug). [recorded in http://www.w3.org/2012/10/01-hcls-minutes.html#action02]
[NEW] ACTION: Scott will keep adding straws to his strawman extension to Q6 (incorporating the mapping approach described in "Translating.."). [recorded in http://www.w3.org/2012/10/01-hcls-minutes.html#action03]
 
[End of minutes]

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$Date: 2012/10/01 16:38:31 $

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Default Present: +1.510.705.aaaa, +31.62.427.aabb, +1.715.389.aacc, +1.206.732.aadd, EricP, [IPcaller], +1.603.727.aaee, +34.65.672.aaff, mikel_egana, +1.613.293.aagg, +31.62.427.aahh
Present: +1.510.705.aaaa +31.62.427.aabb +1.715.389.aacc +1.206.732.aadd EricP [IPcaller] +1.603.727.aaee +34.65.672.aaff mikel_egana +1.613.293.aagg +31.62.427.aahh

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People with action items: adding eric keep michael scott straws will

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