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Re: WebVTT+JS and WebVTT+RDF

From: Pierre-Antoine Champin <pierre-antoine@champin.net>
Date: Mon, 28 Jun 2021 19:12:02 +0200
To: Adam Sobieski <adamsobieski@hotmail.com>, "public-texttracks@w3.org" <public-texttracks@w3.org>, "semantic-web@w3.org" <semantic-web@w3.org>
Message-ID: <47e3cc00-879e-9fd6-4a6b-d1d954aa2b84@champin.net>
Adam,

about WebVTT + RDF you might be interested in a paper we published a 
couple of years ago at LDOW

   http://ceur-ws.org/Vol-1184/ldow2014_paper_11.pdf

Note that in our case, we are not conveying RDF diffs or deltas, but 
full-fledged RDF payloads, encoded as JSON-LD.

   pa


On 25/06/2021 21:25, Adam Sobieski wrote:
>
> Semantic Web Interest Group,
>
> Web Media Text Tracks Community Group,
>
> Hello. I would like to share some thoughts on WebVTT+JS and WebVTT+RDF.
>
>
>   Timed Lambda Expressions (WebVTT+JS)
>
> The following syntax example shows a way of embedding JavaScript in 
> WebVTT tracks. The example provides two lambda functions for a cue, 
> one to be called when the cue is entered and the other to be called 
> when the cue is exited.
>
> 05:10:00.000 --> 05:12:15.000
>
> enter:()=>{...}
>
> exit:()=>{...}
>
>
>   Dynamic Graphs (WebVTT+RDF)
>
> An example scenario for dynamic metadata is that of live streams and 
> recordings from digital microscopes. In the scenario, dynamic metadata 
> includes, but is not limited to, an instantaneous magnification scale 
> and instantaneous time scale. Such metadata about the live streams and 
> recordings from digital microscopes would be desirable to have 
> including for machine learning and computer vision algorithms.
>
> “RDF diffs” [1], or “RDF deltas” [1], could be utilized with WebVTT 
> for representing timed changes to semantic graphs and such approaches 
> could be useful for representing extensible and dynamic metadata about 
> live steams and recordings from biomedical, scientific, and industrial 
> sensors and devices.
>
> Best regards,
>
> Adam Sobieski
>
> http://www.phoster.com <http://www.phoster.com>
>
> *References*
>
> [1] https://www.w3.org/2012/ldp/wiki/LDP_PATCH_Proposals 
> <https://www.w3.org/2012/ldp/wiki/LDP_PATCH_Proposals>
>
> *See also*
>
> https://github.com/pchampin/linkedvtt 
> <https://github.com/pchampin/linkedvtt>
>
> https://github.com/afs/rdf-delta <https://github.com/afs/rdf-delta>
>

Received on Monday, 28 June 2021 17:12:18 UTC

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