W3C home > Mailing lists > Public > www-rdf-interest@w3.org > December 2001

Re: Bitzi File Metadata RDF Dump

From: Mike Linksvayer <ml@gondwanaland.com>
Date: Fri, 28 Dec 2001 12:52:22 -0500
To: www-rdf-interest@w3.org
Message-ID: <20011228125222.A14991@or.pair.com>
Hello, a few months ago several of you were kind enough to comment
on Bitzi's initial RDF catalog dump.  See http://preview.openbits.org
for the existing dump and a sample, which demonstrates a very "flat"
record.  I'm considering adding a bit of structure to allow us to
convey more information about certain properties, e.g., a creator
has a title, relation, related resources, and potentially other
properties rather than being a simple string literal.  This also
allows logically multivalued properties to be repeated unambiguously.

Example follows.  I'd appreciate any comments on this direction!

Mike Linksvayer
ml@bitzi.com


<rdf:RDF xmlns:rdf  = "http://www.w3.org/1999/02/22-rdf-syntax-ns#"
         xmlns:rdfs = "http://www.w3.org/2000/01/rdf-schema#"
         xmlns:dc   = "http://purl.org/dc/elements/1.1/"
         xmlns:bz   = "http://bitzi.com/xmlns/2001/12/25/experimental#"
         xmlns:mm   = "http://musicbrainz.org/mm/mm-2.0#">

  <!-- objective technical information, ticket and catalog entry metadata as
       attributes -->

  <rdf:Description rdf:about="urn:bitprint:3KIZIJB64XP3NCXAE4ISQZT3QNCTF7VD.NK5UNR8ZPQ5MFASNGVB5MISV7ESUSB2MN5R3IY2"
                   bz:ticketFirstReported="2001-06-04 10:19 UTC"
                   bz:ticketReporters="5"

                   bz:fileJudgement="Complete"

                   dc:format="audio/mp3"
                   bz:fileLength="4128768"
                   bz:fileFirst20Bytes="4944330300000000170B47454F42000005900000"
                   bz:fileMD5="EWGAR2KGANV9QMI9B4529TD496"

                   mm:duration="258440"
                   bz:audioBitrate="128"
                   bz:audioSamplerate="44100"
                   bz:audioChannels="2"
                   bz:audioSha1="DQ6TJEH2V39CVT3JM2SPCHBVH3SDWX7W">

    <!-- non-attribute properties may occur multiple times -->

    <bz:fileName dc:title="Brazzaville - Brazzaville 2002 - 05 - Ocean (With Joe Frank).mp3"
                 bz:confidence="Plausible"/>

    <!-- structured description of digitized work -->

    <dc:description dc:title="Ocean (with Joe Frank)"
                    bz:albumName="Brazzaville 2002"
                    mm:trackNum="5"
                    dc:date="1999"
                    bz:confidence="Consensus" />

    <dc:creator>
      <rdf:Description dc:title="Brazzaville"
                       bz:confidence="Plausible">
        <dc:relation>Composer</dc:relation>
        <dc:relation>Performer</dc:relation>
        <rdfs:seeAlso rdf:resource="http://www.brazzaville2002.com"
                      dc:title="Brazzaville Home Page"/>
      </rdf:Description>
    </dc:creator>

    <bz:subjectiveComment>
      <rdf:Description bz:confidence="Plausible">
        <rdf:value>I absolutely love this record. -- Holly Day of Cosmic Debris</rdf:value>
      </rdf:Description>
    </bz:subjectiveComment>

    <!-- related urls -->

    <rdfs:seeAlso rdf:resource="http://www.emusic.com/albums/19514/"
                  bz:confidence="Consensus"/>
  </rdf:Description>
</rdf:RDF>
Received on Friday, 28 December 2001 12:52:23 GMT

This archive was generated by hypermail 2.2.0+W3C-0.50 : Monday, 7 December 2009 10:51:52 GMT