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Re: [MAWG] Datatypes for core properties

From: Chris Poppe <chris.poppe@ugent.be>
Date: Tue, 23 Feb 2010 15:11:58 +0100
Message-ID: <20100223151158.80283gde7ebkji26@webmail.ugent.be>
To: "Florian Stegmaier" <stegmai@dimis.fim.uni-passau.de>
Cc: public-media-annotation@w3.org
Dear all,

thanks for the update and revision of the data types. Remarks:

Joakim pointed out today that for the the genre property, depending on  
the media resource, probably different vobabularies are needed.
Maybe it's something to discuss tomorrow morning/evening.

Dominique has sent an email with remarks on the API document  
(2/18/2010: Comments on API for Media Resource 1.0) stating that for  
the duration property milliseconds are preferred over seconds.

Additionally, the types for description and namedFragments which we  
discussed today but did not make it into the minutes map exactly to  
what you suggest :)

Kind regards,
Chris


Quoting "Florian Stegmaier" <stegmai@dimis.fim.uni-passau.de>:

> Dear all,
>
> in a seperate Skype session after the first meeting day of the 6th  
> F2F, Werner, Tobias and i went through the meeting minutes [1] and  
> discussed the defined datatypes of the properties.
>
> Here is our consensus:
>
> ###Identification###
> ma:identifier ::: URI (maybe with subproperties: [identifier:URI,  
> type:String])
> ma:title ::: [title:String, type:String]
> ma:language ::: String (controlled by BCP 47 [2])
> ma:locator ::: URI
>
> ###Creation###
> ma:contributor ::: [Identifier:String or URI, role:String]
> ma:creator ::: [Identifier:String or URI, role:String]
> ma:createDate ::: [Identifier:Date, role:String]
> ma:location ::: [Name:String] or [longitude:Float,latitude:Float,  
> alitude:Float]
>
> ###Content description###
> ma:description ::: String
> ma:keyword ::: String (here we want to change the  
> definition...keyword should be only keyword - but maybe more tokens  
> -> more keywords accordingly more elements)
> ma:genre ::: String (controlled, e.g., by the EBU vocabulary)
> ma:rating ::: [Identifier:URI,  
> value:Float,max:Float,min:Float,context:String]
>
> ###Relational###
> ma:relation ::: [Identifier:URI, relation:String]
> ma:collection ::: String or URI (nothing complex here)
>
> ###Rights###
> ma:copyright ::: [copyright:String, Identifier:URI]
> ma:licence ::: [licence:String, Identifier:URI]
>
> ###Distribution###
> ma:publisher ::: String or URI (no role/subproperties needed here)
> ma:targetAudience ::: [Identifier:URI, classification:String]
>
> ###Fragments###
> ma:fragments ::: [Identifier: URI, role: String]
> ma:namedFragments ::: [label: String, identifier: URI]
>
> ###Technical properties###
> ma:frameSize ::: [width:Float, height:Float]
> ma:compression ::: String (controlled by RFC 4281 [3])
> ma:duration ::: Float (e.g., 5.001 -> 5s and 1ms)
> ma:format ::: String (controlled by MIME types [4])
> ma:samplingrate ::: Float
> ma:framerate ::: Float
> ma:bitrate ::: Float
> ma:numTracks ::: Integer
>
> In the F2F (or maybe only in the minutes) there was no definition of  
> ma:description and ma:namedFragments.
>
> Best,
> Florian, Werner and Tobias
>
> [1] http://www.w3.org/2010/02/23-mediaann-minutes.html
> [2] http://www.rfc-editor.org/rfc/bcp/bcp47.txt
> [3] http://www.ietf.org/rfc/rfc4281.txt
> [4] http://www.isi.edu/in-notes/rfc2046.txt
> _____________________________
> Dipl. Inf. Florian Stegmaier
> Chair of Distributed Information Systems
> University of Passau
> Innstr. 43
> 94032 Passau
>
> Room 248 ITZ
> Tel.: +49 851 509 3063
> Fax: +49 851 509 3062
> stegmai@dimis.fim.uni-passau.de
>
> https://www.dimis.fim.uni-passau.de/iris/
>
> http://www.jpsearch.org
> http://www.mpegqueryformat.org
> _____________________________
>
>
>



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e-mail: Chris.Poppe@ugent.be

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Received on Tuesday, 23 February 2010 14:18:09 GMT

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