14:59:04 <RRSAgent> RRSAgent has joined #hcls
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14:59:08 <dbooth> rrsagent, make logs public
14:59:26 <dbooth> Meeting: FHIR RDF
14:59:28 <dbooth> Chair: David Booth
15:00:10 <TallTed> TallTed has joined #hcls
15:03:15 <dbooth> Topic: Concept IRIs
15:03:38 <dbooth> gaurav: Still stuck at 9 of 15 votes we need.  Emailed Rob Hausam for help.
15:04:31 <dbooth> https://jira.hl7.org/browse/UP-377
15:08:04 <dbooth> Topic: Tim Prudhomme's PR
15:09:40 <dbooth> https://github.com/HL7/kindling/pull/148
15:11:07 <dbooth> dbooth: Need to verify that the changes to the generated FHIR RDF exmaples are all correct?
15:11:58 <dbooth> https://github.com/HL7/kindling/pull/148
15:14:22 <dbooth> ACTION: EricP to run shex validation against new FHIR RDF examples
15:14:45 <dbooth> jim: I'll work on it in the next 6 weeks.
15:16:29 <dbooth> rrsagent, draft minutes
15:16:31 <RRSAgent> I have made the request to generate https://www.w3.org/2024/09/19-hcls-minutes.html dbooth
15:17:13 <dbooth> Topic: DICOM
15:17:47 <dbooth> erich: Played with Virtuoso geosparql.  Started throwing errors when I tried my data.  THink it is related to default coord sys.
15:18:21 <dbooth> ... Their flavor of well-known text is extended, but nart part of the standard.
15:18:28 <dbooth> ... I reached out to address that.
15:18:52 <dbooth> ... Didn't see Blazegraph support, but it's in the code.
15:19:11 <dbooth> ... Updated issues 149.
15:19:30 <dbooth> ...  Trying to demostrate that it works in practice.
15:23:53 <dbooth> rob: Suggest Kevin ODonnel, int in DICOM
15:24:11 <dbooth> ... About representations of imaging
15:26:19 <dbooth> eric: Do people mostly address these things by nth element of an array?
15:26:24 <dbooth> ... Is that good enough?
15:26:47 <dbooth> ... How do people make references to these things?
15:28:02 <dbooth> erich: In DICOM JSON it will be xy coordicates in an array.
15:28:13 <dbooth> ... But when you put it into an RDF list it isn't performant.
15:28:27 <dbooth> ericp: Depends on language binding.
15:28:54 <dbooth> ... In n3 I can look at it as a first-rest ladder.  Or I can get it as an array in JSON.
15:31:15 <dbooth> ... If I use a python lib, I could ask for the RDF graph, but I can get the lists in a special object for lists, which allow indexing.
15:36:25 <dbooth> ericp: Two issues: 1. can you efficiently get to nth element of a list.  2. Whether you have geosparql indexes.
15:37:11 <dbooth> ... The reason RDF is not performat is because there is no hint to use geosparql indexes on it.
15:37:43 <dbooth> erich: They've added well-known text.  Could add support for RDF lists.
15:38:01 <dbooth> ericp: Would be interesting to add that feature to communica.
15:38:31 <dbooth> erich: If it was added to geosparql it would help, but would need to be added to jena, etc.
15:38:53 <dbooth> jim: I'm  currently adding some features to Communica
15:39:15 <dbooth> ericp: Dependency injection is complex
15:39:51 <dbooth> jim: I added the path querying from stardog to Communica, but tyring to figure out how to deploy it.
15:40:16 <dbooth> https://comunica.dev
15:40:38 <dbooth> jim: It was created as a framework for research -- very modular.
15:40:48 <dbooth> ... Also geared toward dynamic queries.
15:41:20 <dbooth> ... Can access other SPARQL servers, files, etc. all at once, and does the joining on client side.
15:41:42 <dbooth> dbooth: Federation framework?   Jim: yes
15:42:34 <dbooth> detlef: I like the simplicity of well-known text.
15:42:47 <dbooth> ... Doesn't depend on other features.
15:43:07 <dbooth> ... I can literally grap the text and parse it in JS.
15:43:29 <dbooth> ... If you have geosparql plugged in then you have more possibilities.
15:45:01 <dbooth> erich: Might be good to suggest RDF list support to future version, but need to use current stds now.
15:52:52 <dbooth> Topic: Diffs of FHIR Examples from Tim Prudhomme's PR
15:54:06 <dbooth> Ericp: line 266 in new (empty fhir:binding ) is not in the old.
15:54:35 <dbooth> Present: Rob Hausam, Jim Balhoff, EricP, Detlef Grittner, Gaurav Vaidya, David Booth
15:58:12 <dbooth> (EricP reviewed some diffs with Jim)
15:58:12 <dbooth> ADJOURNED
15:58:48 <dbooth> rrsagent, draft minutes
15:58:49 <RRSAgent> I have made the request to generate https://www.w3.org/2024/09/19-hcls-minutes.html dbooth