Hi Rob (or others),
as you say, one of the benefits of a Python mode of Active Data Shapes
would be that 3rd party Python libraries could be used within TopBraid.
Compared to an external process this might lead to a more intimate
integration. Instead of serializing data from triples into text files
and sending them across to the 3rd party engines, the data could remain
where it is (in the TB database) and the algorithms could potentially
just incrementally fetch the info that they need.
I have raised an internal dev ticket to investigate such an integration,
potentially for the version that will be out by the end of the year
(tentatively called 7.0). I would appreciate input on specific tools
that make this more concrete. What APIs would we need to expose so that
the data can be more seamlessly by exposed to those libraries, e.g. do
they have "interfaces" that we can then implement?
Holger
On 26/06/2020 09:22, [email protected] wrote:
havent fully bottomed out the implications, but the integration of EDG
with python tools for NLP, ML, AI, geospatial, statistical processing
is something we do via transactions at the moment - if there was
support for a more granular data-driven integration that would be of
great interest.
On Friday, 26 June 2020 at 08:42:20 UTC+10 Holger Knublauch wrote:
On 26/06/2020 03:31, Irene Polikoff wrote:
Hi Richard,
We are glad to hear you are enjoying this new feature. 6.4 is the
first release of this feature and it was added relatively late in
the release cycle which is why it is currently marked as
experimental.
We plan on extending the active data shapes support and its use
within EDG even further for the next release. And we want to
provide more documentation. With this, the experimental tag will
definitely go away before the year end.
Let's see if Holger has something else to add.
For an example of what's coming next (even in the 6.4 final
release), see http://datashapes.org/active/import.html which adds
a new importer framework for JSON, Spreadsheets and XML files (or
any text-based format really). It does so relatively effortlessly,
through the flexibility of having a general-purpose programming
language integrated with a simple RDF graph API. And the mapping
from SHACL shapes to JavaScript classes will hopefully make it
easy for newcomers to get started.
The changes.txt log of 6.4 includes some details of the state and
what's on the horizon:
- Feature: TBS-2949: First preview of the experimental Shape
Script feature. Included for feedback from early adopters.
Known limitations/unfinished pieces:
- Only server-side JavaScript execution (neither
Python, nor R, nor client-side JS execution)
- Limited system class API (rdfs_Class, sh_NodeShape
etc). These are currently injected from a "magic" file
system.shapes.ttl but for all this to function
properly, that really should be owl:imported into all Ontologies.
- No proper API for iterative queries yet, i.e. you can
either fetch all property values or use SPARQL as-is.
- Buttons to interrupt scripts may sometimes leave
unclosed iterators.
- No real debugger/console yet. You can use print(...)
to print to System.out though.
- Only superficial integration with existing SWP
modules for now. These should become just JS functions.
- Almost none of the well-known SPARQL functions from
namespaces like teamwork, spif etc have been migrated to
sh:Functions yet,
and therefore don't show up in their JS prefix object.
- May create too many copies of internal data
structures and GraalVM engines, e.g. not reuse the ontology across
workflows.
Meanwhile we appreciate anyone's feedback (positive or negative)
to fine tune and further improve this work.
For example, would anyone be interested in Python support?
Thanks,
Holger
For those on the mailing list who have not yet heard about Active
Data Shapes, please see http://datashapes.org/active/. The video
linked below is rather long. If you want to go directly to the
part of the video that introduces active data shapes, fast
forward to 40:15.
Regards,
Irene
On Jun 25, 2020, at 1:13 PM, Richard Dijkstra
<[email protected]> wrote:
Dear all,
I have looked at the webinar of Holger about shapes
http://www.lotico.com/index.php/The_Many_Shapes_of_SHACL and
have been experimenting prompt with the script editor and used
*dot notation for updating triples!* A great exprience.
The state of this feature of active data shapes is experimental
but works already perfectly. Can you say more about the
expectation when the tag experimental is removed?
Richard D
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