Meeting minutes
DICOM
erich: Snippet of converted file: w3c/
… Will test this on a bunch of data
dbooth: they have the datatype indicated, like "POLYGON .... ))"^^geo:wktLiteral
… How easy is it to convert from DICOM JSON to this RDF format?
erich: I convert the files directly -- similar to DICOM JSON, but conversion to xsd literals.
… Also doing SPARQL Updates on the models I have in memory. Wrote my own magic property in jena to do it.
… My program has an option called LongForm, which does bare minimum conversion to RDF
detlef: THe conversion is pretty simple.
… Using an ontology, you know it is a polygon and you can use that format.
ericp: I'm down with that.
erich: Now converting 300k files. Will load them into virtuoso and see if this data element is in there.
… About 20B triples.
… And I'll enable geosparql and see if it really works.
… Mostly concerned about pathology, 1-2M polygons in one image.
… Lots of labeling w deep learning pipeline. Want see all tumor infiltrating sites within x distance of something.
Want to see that across the entire collection, for the pathologist to look at it. That will exercise the index.
ericp: Doing Mondo DB stuff, when does it become available for query after loading?
erich: IDK. Using our own sys for annotations and reviewing result sets.
… Want to do spatial queries across multiple pipelines -- linking them all together
… RDF is a great way to join all that data.
LLM trained on FHIR
eric: Saw a paper on it: https://
DICOM
erich: Also added example of sequence handling to issue 146
detlef: individual items are descriptions of a region of interest. We wanted to add data there. 3 choices: 1. Add DICOM attribute if there's an official one, and you're altering the original file. Need to track the modifications in another attribute.
… Option 2. LIke relation DB approach, foreign linking. Ref the number of that region in the other file.
… Option 3. Direct linking approach, that requires a different structure -- not an RDF list.
dbooth: Direct linking == by a URI? Detlef: Yes.
detlef: Cannot do that w bnodes in an RDF list.
erich: Could use URIs in the RDF list.
… Skolomized, or URNs for example
ericP: How do JSON users access these things? Just go to the nth element?
Connecting DICOM RDF to FHIR RDF
dbooth: How do we write this up in the context of FHIR RDF work?
erich: Will see what work is already being doing on DICOM in FHIR
dbooth: I haven't heard back from Dave Beckett.
erich: Reached out to Sean Bechhofer. Haven't heard back yet.
FHIR RDF update for HL7
dbooth: Need to do a semi-annual update to the ITS group
W3C Linked Web Storage WG
eric: partly followup to SOLID work.
… Loosely chartered
… I'm co-chair
dbooth: Who are the big drivers?
ericP: Inrupt. Not IBM yet. Digital Landern. HM Government. INeck OpenLink software
dbooth: Any submissioni document on the table yet?
ericP: SOLID work would be considered an input.
ADJOURNED