[x3d-public] X3D Semantic Web minutes 5 March 2020: modified meeting time, essential books, Apache, DFDL pipeline and 3D conversions

[John Carlson]

Perhaps for X3DV5, we should consider unifying the object model schema with
the X3D  xml schema, and explore synergies.

John

On Mon, Mar 8, 2021 at 5:03 PM Don Brutzman <brutzman at nps.edu> wrote:

> Attendees.  Jakub Flotyński and Don Brutzman
>
> [0.1]    Web3D Teleconference Information
>           https://www.web3d.org/member/teleconference-information
>
> > Please use the following link for all Web3D Consortium Meetings.
> >
> > Join URL:
> https://us02web.zoom.us/j/81634670698?pwd=a1VPeU5tN01rc21Oa3hScUlHK0Rxdz09
>
> Confirmed that no Web3D Consortium member-only information is in these
> minutes.
>
> No formal meeting last few weeks.
>
> ---
>
> 1. Ontology Goals and Schedule.
>
> [1.1]   X3D Ontology for Semantic Web
>         https://www.web3d.org/x3d/content/semantics
>
> We will try a new routine, Tuesdays 08-0900 pacific time.  Hopefully this
> time will remain consistent so that others can join.
>
> Have updated Web3D Calendar.
>
> [1.2]   Web3D Calendar
>         https://www.web3d.org/calendar/month
>
> ---
>
> 2. Books and formal review of X3D Ontology.
>
> We should study each of these closely and refine X3D Ontology as we
> proceed.
>
> [2.1]   Flotyński, Jakub. Knowledge-Based Explorable Extended Reality
> Environments.
>         https://www.springer.com/gp/book/9783030599645
>
> - Review chapter 3
> - Can we compose/correlate/harmonize X3D Ontology with Explorable Extended
> Reality (E-XR) Ontology?
>
> [2.2]   Semantic Web for the Working Ontologist, Third Edition: Effective
> Modeling in RDFS and OWL
>         James Hendler, Dean Allemang, and Fabien Gandon
>         Third edition, ACM Books, 2020
>         http://books.acm.org/titles#tab294
>
> - End-to-end review
> - SHACL https://www.w3.org/TR/shacl
> - SKOS  https://www.w3.org/2004/02/skos
> - Quantities Units Dimensions Types
>
> [2.3]   Building Ontologies with Basic Formal Ontology.
>         By Robert Arp, Barry Smith and Andrew D. Spear
>
> https://mitpress.mit.edu/books/building-ontologies-basic-formal-ontology
>
> - generality considerations of ontology constructs
>
> [2.4]   Mastering Structured Data on the Semantic Web. From HTML5
> Microdata to Linked Open Data. Sikos, Leslie.
>         https://www.apress.com/gp/book/9781484210505
>
> - end-to-end review, much detail to check/confirm/add
> - general 3D ontology mapping
>
> ---
>
> 3. Apache
>
> Found a tremendous movie on open source.  Recommended.
>
> [3.1]   https://www.apache.org
>
> [3.2]   video "Trillions and Trillions Served"
>         https://www.youtube.com/watch?v=JUt2nb0mgwg
>
> ---
>
> 4. Data Format Definition Language (DFDL)
>
> As noted in [1.1] under Design, for mapping to many different 3D formats
> someday, we first need to parse them:
>
> * "use Apache Daffodil (DFDL) to actually parse and subsequently query
> those other formats coherently."
>
> Significant progress on that front.
> - Open Grid Forum (OGF) formally advanced DFDL approval and advancement to
> Version 1.0
> - Apache Software Foundation has advanced the Daffodil project from
> Incubating status to Top Level Project.
>
> ==========================================
> [4.1]   The Apache Software Foundation Announces Apache® Daffodil™ as a
> Top-Level Project
>
> https://blogs.apache.org/foundation/entry/the-apache-software-foundation-announces74
>
> "Our research on applying Data Format Description Language (DFDL) is
> exploring how to unlock and archive a plethora of diverse data streams from
> unmanned systems," said Don Brutzman, Naval Postgraduate School. "Both the
> DFDL standard and the Apache Daffodil open-source implementation provide a
> big benefit for these potential capabilities. Continuing work at Naval
> Postgraduate School (NPS) Consortium for Robotics and Unmanned Systems
> Education and Research (CRUSER) hopes to make telemetry from field
> experimentation and simulation repeatably tractable for Big Data analytics."
> ==========================================
>
> Namely, we have produced a preprocessor/postprocessor for DFDL that
> enables decoration of XML schemas that define both elements and attributes.
>
> [4.2]   DFDL Pipeline
>         https://gitlab.nps.edu/Savage/robodata/-/tree/master/DFDL/pipeline
>
> [4.3]   DFDL Pipeline diagrams
>
> https://gitlab.nps.edu/Savage/robodata/-/tree/master/DFDL/pipeline/images
>
> This means we might decorate customized copies of X3D4 XML Schema with
> DFDL markup, allowing us to parse/unparse any other 3D format that has
> corresponding data structures.
>
> TODO goal: write a VRML parser by defining VRML syntax as DFDL markup and
> adding it to an "X3D4VRML" schema.
>
> Of note is that DFDL provides both parsing and unparsing with a single
> schema, two-way conversion capabilities (unlike lex, yacc, antlr, others).
>
> Thus, if we can figure out data-structure correspondences between X3D and
> any other 3D file format, then we can customize an X3D4 schema for that
> other format, parsing directly into X3D, and thus permitting semantic query
> across file formats.
>
> So, no shortage of work to do.  Ready or not, having fun with X3D!  8)
>
> all the best, Don
> --
> Don Brutzman  Naval Postgraduate School, Code USW/Br
> brutzman at nps.edu
> Watkins 270,  MOVES Institute, Monterey CA 93943-5000 USA   +1.831.656.2149
> X3D graphics, virtual worlds, navy robotics
> http://faculty.nps.edu/brutzman
>
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