W3C

- DRAFT -

MAWG F2F day 1

06 Sep 2011

Agenda

See also: IRC log

Attendees

Present
daniel, wonsuk, martin, florian, werner, tobias, thierry
Regrets
Chair
daniel
Scribe
wbailer

Contents


<scribe> scribe: wbailer

i-know conference program: http://i-know.tugraz.at/wp-content/uploads/2011/08/program_i-know_i-semantics_praxisforum_2011_final.pdf

api doc lc2 comments

florian reports on status of api doc

restructured web idl, to integrate sync and async

last call comment on use of code 501

criticism is that 501 is defined that request method is not supported for any resource

option is to define our own error code for this, eg 562

wonsuk: not sure of our own error code makes it more clear
... we can define our own error code for this error
... scope of our spec is not closely related with http
... we could change the definition of the 501 code for our spec

proposed solution: define error code 562, description: property not supported

<scribe> ACTION: florian to draft response to LC-2556 [recorded in http://www.w3.org/2011/09/06-mediaann-minutes.html#action01]

<scribe> ACTION: thierry to include text on what constitutes a feature / cr exit criteria into the api doc [recorded in http://www.w3.org/2011/09/06-mediaann-minutes.html#action02]

<scribe> ACTION: thierry to check / update list of group members in api doc acknowledgements section [recorded in http://www.w3.org/2011/09/06-mediaann-minutes.html#action03]

we plan to vote for moving api doc to cr in the mawg telco on sept. 13

ontology - exiting cr

daniel reminds the group of cr exit criteria

going through test suite documents

cablelabs: rdf validation issues

skip for now, if there is time, we work on this document

dig35: compliant, comment missing, martin will add

dublin core: compliant

ebu core: pellet) detects conflict

<martinh> <http://www.dummy.ch/News/16Jan2011/Items/20110116-PNN-0428-528229/> a ma-ont:Document , ma-ont:Collection ; ma-ont:locator "http://www.dummy.ch/News/16Jan2011/Items/20110116-PNN-0428-528229/index.html"^^<http://www.w3.org/2001/XMLSchema#anyURI> .

instance is of collection, as it has locator, reasoner infers it's also a media resource

the two classes are disjoint

ma-ont: Document is found, class is not defined in the ma ontology

martin will send mail to jean-pierre with details

exif: compliant

id3: compliant

agent could be specified in more detail, defining a person rather than just a resource

same issue for second id3 example

iptc: duration value as string, not as decimal

<tmichel> Will do now

media rss: still to be checked

mpeg7: comment missing, martin to fix

ogg: average bit rate includes unit in value field

2 instances of bitrate with this issue

duration of type double instead decimal

fixed in local copy

quicktime: comment missing, martin to fix

smpte: comment missing, martin to fix

ttml: comment missing, martin to fix

tva: ratingscalemin is string instead of decimal

same for rating value and max

txfeed: still to be checked

xmp: language has 3 labels, should be 3 instances - only in the RDF XML

XML and Turtle serialisations are not consistent

youtube: still to be checked

3gp: drop xml base, otherwise ontology is not imported

flv: both examples correct

mp4: compliant

webm: unit in average bit rate - same issue as for ogg

<wonsuk> http://lists.w3.org/Archives/Public/public-media-annotation/2011Sep/0007.html

media rss: compliant, comment missing

txfeed: compliant, comment missing

<wbailer2> scribenick: wbailer2

back to tva example:

issue with collection identifier, pellet finds a literal

<wbailer> scribenick: wbailer

<daniel> ACTION: florian to draft response to LC-2556 [recorded in http://www.w3.org/2011/09/06-mediaann-minutes.html#action04]

tva issues resolved, with changing durations, ratings and location coordinates to decimal

collection should be changed to use rdf:resource

then the reasoner also infers the inverse property

comment in the file about creator and version # is missing

<pchampin> sorry I'm late

<pchampin> anyone here?

we're back from lunch break and will continue

we will do editing of RDF examples until 3pm

quicktime: same issue with xml base as in 3gp and webm

<tmichel> I am back on Zakim, if you need me

<tmichel> Ok can we discuss it now ?

<tmichel> I am on the telecon ;-)

formalities of moving api doc to lc

thierry: 2 things remaining
... resolve lc comment
... second is exit criteria
... usual w3c criteria
... thierry will send proposal by tomorrow morning

<scribe> ACTION: werner to send consolidated draft of what constitutes a feature [recorded in http://www.w3.org/2011/09/06-mediaann-minutes.html#action05]

thierry to join tomorrow 10am

ontology cr exit

<tmichel> http://www.w3.org/2008/WebVideo/Annotations/#Implementa

thierry: no implementations, but testsuite and tools, services using ontology
... link to wonsuk's implementation still missing

telecon with director to move to pr, need to show that we need exit criteria

scribe: we have to find some kind of wording for the demonstrators
... just to show that we meet exit criteria, not in the spec

daniel: must these implementations be synced to test suite files?

thierry: would be great if this is doable

daniel: wonsuk's implementation is not compatible with test suite files, eg different rdf representation

thierry: it's a problem if different from the latest version of the ontology

<tmichel> At least two applications have been demonstrated that use features of the Media Annotation Ontology.

thierry: or mention it and say that it is not fully compatible

<daniel> we have 7 implementations, once preparing the sample using the Werner's implementation, we will ask others implementors for preparing the same illustration regarding each implementation.

revisiting ebucore example

ontology test suite

revisiting ebucore example

proposal for fixing it: remove ma-ont Document, replace ma-ont:locator of the collection by dc:format

<scribe> new youtube example: compliant

fixing xmp example

<scribe> .. done

dig35 example

changing rdf:about to rdf:ID, fixing multiple identifiers

fixed datatypes and values

split multiple values for properties into multiple instances of properties

conclusion on test suite examples:

- we have compliant versions for all the files now

- for some files we made modifications based on what we think was meant, editors may want to comment, this applies to ebucore, cablelabs

- martin will generate also the turtle version for all the modified files

API test suite

florian: we need a normative JSON representation for the test suite
... two options: 1. browser extensions or native support, JSON returned; 2. web service returns JSON
... in both cases we can match the JSON result against the reference JSON for a test file
... basic requirement: value attribute must be correct
... extended: also the structured specific attributes for each property are correct
... we will need JSON example response for each of the formats
... option could be to use RDF to JSON conversion of normative examples

<fstegmai> RDF2JSON converter: http://www.epimorphics.com/web/wiki/rdf-json-converter-google-app-engine

to be checked if the converter is usable for that

<scribe> ACTION: florian to check if this converter is useful for us [recorded in http://www.w3.org/2011/09/06-mediaann-minutes.html#action06]

<trackbot> Created ACTION-440 - Check if this converter is useful for us [on Florian Stegmaier - due 2011-09-13].

florian: we should define tomorrow which are the positive and negative test cases to be covered

[adjourned]

Summary of Action Items

[NEW] ACTION: florian to check if this converter is useful for us [recorded in http://www.w3.org/2011/09/06-mediaann-minutes.html#action06]
[NEW] ACTION: florian to draft response to LC-2556 [recorded in http://www.w3.org/2011/09/06-mediaann-minutes.html#action01]
[NEW] ACTION: florian to draft response to LC-2556 [recorded in http://www.w3.org/2011/09/06-mediaann-minutes.html#action04]
[NEW] ACTION: thierry to check / update list of group members in api doc acknowledgements section [recorded in http://www.w3.org/2011/09/06-mediaann-minutes.html#action03]
[NEW] ACTION: thierry to include text on what constitutes a feature / cr exit criteria into the api doc [recorded in http://www.w3.org/2011/09/06-mediaann-minutes.html#action02]
[NEW] ACTION: werner to send consolidated draft of what constitutes a feature [recorded in http://www.w3.org/2011/09/06-mediaann-minutes.html#action05]
 
[End of minutes]

Minutes formatted by David Booth's scribe.perl version 1.136 (CVS log)
$Date: 2011/09/06 15:15:55 $

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Default Present: +43.316.876.aaaa, graz_f2f, +33.9.53.85.aabb
Present: daniel wonsuk martin florian werner tobias thierry
Agenda: http://www.w3.org/2008/WebVideo/Annotations/wiki/Graz2011Agenda
Got date from IRC log name: 06 Sep 2011
Guessing minutes URL: http://www.w3.org/2011/09/06-mediaann-minutes.html
People with action items: florian thierry werner

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