[Nepomuk] OSCAF and music live and videoclips

[Sebastian Trüg]

you did not really comment on my proposal though...

On 04/04/2012 08:20 PM, Andrew Lake wrote:
> Yup, double typing is exactly what I had in mind. It cuts down on a
> proliferation of new classes and more simply reflects what actually
> happens in the real world - resources on the users computer can be of
> multiple types (rdf:type has no maxCardinality that I can recall).
> Applications already have to deal with this possibility.
> 
> The query would be simple:
> 1. If the user wants live performances of any type then use:
>     ?r rdf:type nmm:LivePerformance
> 2. If the user wants TV show live performances use:
>     ?r rdf:type nmm:LivePerformance
>     ?r rdf:type nmm:TVShow
> 3. If the user wants Music Video live performances use:
>     ?r rdf:type nmm:LivePerformance
>     ?r rdf:type nmm:MusicVideo
> 4. If the user wants Music live performances use:
>     ?r rdf:type nmm:LivePerformance
>     ?r rdf:type nmm:MusicPiece
> 5. if the user wants a concert of any type use:
>     ?r rdf:type nmm:Concert
> 6. if the user wants a concert movie use:
>     ?r rdf:type nmm:Concert
>     ?r rdf:type nmm:Movie
> 7. if the user wants a concert TV show use:
>     ?r rdf:type nmm:Concert
>     ?r rdf:type nmm:TVShow
> 
> Even better, if nfo:Media is ever expanded to include new types such
> as (Books, AudioBooks, Plays, Spoken Word, etc.) this live performance
> ontology wouldn't need to be updated again.
> I really think we can get all the benefits we need without introducing
> media-specific live performance types.
> 
> Hope this helps,
> Andrew
> 
> On Wed, Apr 4, 2012 at 10:49 AM, Sebastian Trüg <sebastian at trueg.de> wrote:
>> looks very nice indeed. Would you thus propose to double-type live
>> performance videos with nmm:MusicVideo and nmm:LivePerformance?
>>
>> How about the attached layout instead.
>>
>> We simply derive the live video and audio from the same live base class.
>> That way we can easily query all live performances, be it audio or video.
>> Also I added an intermediate class nmm:MusicVideo and the badly named
>> nmm:MusicVideoVideo which is supposed to be typical music videos as you
>> get from performers for mtv and stuff.
>> That way we can also easily query for videos that contain music in any form.
>>
>> What do you think?
>>
>> Cheers,
>> Sebastian
>>
>> On 04/04/2012 07:26 PM, Andrew Lake wrote:
>>> nmm:TVShow is a subclass of nfo:Media so yes, it should be okay to do that. :-)
>>>
>>> peace and much respect,
>>> Andrew
>>>
>>> On Wed, Apr 4, 2012 at 10:23 AM, Ignacio Serantes <kde at aynoa.net> wrote:
>>>> Assuming that nmm:TVShow could be used instead nfo:Media seems good for me
>>>> :).
>>>>
>>>>
>>>> On Wed, Apr 4, 2012 at 6:36 PM, Andrew Lake <jamboarder at gmail.com> wrote:
>>>>>
>>>>> Thanks for taking the time to put this together Sebastian.
>>>>>
>>>>> I wonder if it would be possible to push a simpler class
>>>>> nmm:LivePerformance up above the media type (audio/music/video).
>>>>> Perhaps just subclassed from nfo:Media, since we could have audio or
>>>>> video live performances.  Then perhaps we could just add the type to
>>>>> any existing audio, music, video, tv show, etc. resource to indicate
>>>>> it is a live performance.  A concert then is just a special type of
>>>>> live performance that can have multiple live performances. It might
>>>>> even have unique properties like location, numberOfPerformers,
>>>>> tourStops, etc.
>>>>>
>>>>> Based on what you came up with and Ignacio's comments, I've attached a
>>>>> png that captures what I'm thinking might work.
>>>>>
>>>>> Hope this helps,
>>>>> Andrew
>>>>>
>>>>> On Wed, Apr 4, 2012 at 4:41 AM, Ignacio Serantes <kde at aynoa.net> wrote:
>>>>>> In a second view I have some remarks:
>>>>>>
>>>>>> Why nmm:MusicVideo is related to nmm:LiveMusicPerformance? There are
>>>>>> totally
>>>>>> independent without any relation.
>>>>>> nmm:MusicVideo must be related to many nmm:MusicPiece as
>>>>>> nmm:LiveMusicPerformance. This is a very uncommon case but there is a
>>>>>> few
>>>>>> music video clips related to more than on song.
>>>>>> I'm assuming a 0:n cardinality because I have several live performances
>>>>>> related to a nmm:MusicPiece I don't own.
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Wed, Apr 4, 2012 at 10:40 AM, Sebastian Trüg <sebastian at trueg.de>
>>>>>> wrote:
>>>>>>>
>>>>>>> Hi guys,
>>>>>>>
>>>>>>> I quickly drew little diagrams trying to summarize again. Please tell
>>>>>>> me
>>>>>>> what I missed:
>>>>>>>
>>>>>>> 1.png is the example of a concert which is split into live performances
>>>>>>> or certain music pieces. Still missing are the DataObject parts. There
>>>>>>> could be a filedataobject for all of them or only for the concert. in
>>>>>>> the latter case the rest would be embedded data objects or we need
>>>>>>> something new like "part of a dataobject".
>>>>>>> 2.png is the relationship between the classes.
>>>>>>>
>>>>>>> Cheers,
>>>>>>> Sebastian
>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Best wishes,
>>>> Ignacio
>>>>
>>>>
>>>
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