Re: The OWL file

Christiano,

Oh thanks for using a closed publication journal that's the last thing both
the W3C and the open source movement need right now.

I looked into this area myself but the semantics involved to describe the
internal state verses ActivityPub communications was still indeterminate at
the time due to all the incontinuity errors in ActivityPub and
ActivityStreams.

The work I prompted in closing the GitHub issues for both protocols mainly
performed by Evan goes someway to addressing this, but there are also
proprietorial issues as we do not reflect both the additional protocol
additions and incompatibilities introduced by the main implementation of
the protocols, Mastodon.

I am not sure how useful formalizing the ontology if ActivityStreams will
actually be in terms of using it with an N3 database or for code
generation. N3 is hugely inefficient, and code generation is not
necessarily going to be optimal.

You can probably get a class structure out of the ontology but again I
don't know how useful that will actually be without additional bespoke
event logic.

If I had access to the Sage publication it would be useful but I am not in
an academic organisation.

Sorry for the rather negative email, but I tend to prefer to say things as
they really are and not beat around the bush. I know I don't win any
friends this way, but reality is what reality is.

Regards,

Aaron

Aaron Gray - https://bsky.app/profile/aaronngray.bsky.social |
@AaronNGray@fosstodon.org | https://x.com/AaronNGray

Meta-Mathematician, Independent Open Source Software Engineer, Computer
Language Researcher and Designer, Type Theorist, Computer Scientist,
Environmentalist and Climate Science Researcher and Disseminator.






On Mon, 23 Feb 2026, 10:12 Cristiano Longo, <
cristianolongo@opendatahacklab.org> wrote:

> I'm pleased to announce our first scientific work concerning Activity
> Streams: https://doi.org/10.1177/15705838261419004
>
> Unfortunately, it is not open access. However, all the resources
> produced in this work are publicly available at
> https://www.opendatahacklab.org/as-exh/
>
> The paper propose to extend the OWL version of the Activity Vocabulary
> with some axioms aiming to capture the semantics of Activity Stream
> terms as it is described in the specification documents. The paper shows
> also some example and consequences of these novel axioms. The axioms and
> the corresponding examples are of course questionable, so any comment is
> welcome.
>
> CL
>
>
>