ontology

The WASABI ontology

The WASABI ontology is a vocabulary to formalize the WASABI dataset's metadata. Written in the W3C OWL Web Ontology Language, it primarily relies on the Music Ontology that defines a rich vocabulary for describing and linking music information, and extends it with terms about some specific entities and properties not covered by the Music Ontology.

The WASABI ontology also reuses relevant terms from common vocabularies such as Dublin Core Metadata, FOAF, Schema.org and the DBpedia ontology, as well as some specific terms from the Audio Features Ontology and the OMRAS2 Chord Ontology.

This current version of the ontology includes 8 classes and 50 properties.

Ontology description

Namespace

http://ns.inria.fr/wasabi/ontology/

Current Version

v2

Publisher

Inria

Imported ontologies

http://dbpedia.org/ontology/ http://purl.org/dc/terms/ http://purl.org/ontology/mo/ http://xmlns.com/foaf/0.1/

Classes

The WASABI ontology extends the Muusic Ontology, which is why 7 out of 8 classes from its classes are linked to ones in Music Ontology.

• Album (wsb:Album)
• Artist_Group (wsb:Artist_Group) : equivalent class of mo:MusicGroup
• Artist_Person (wsb:Artist_Person) : equivalent class of mo:SoloMusicArtist
• Choir (wsb:Choir) & Orchestra (wsb:Orchestra) : subclasses of mo:MusicArtist
• Lyrics (wsb:Lyrics) : equivalent class of mo:Lyrics
• Song (wsb:Song) : equivalent class of mo:Track
• Classic song of pop/rock music (wsb:Classic_Song)
• • Topic (wsb:Topic)

Properties

The wasabi dataset contains some specific properties that are not covered by the Music Ontology, of which 22 are links to social network pages, represented in the WASABI ontology as object properties. The dataset also includes several calculated features. Here are a few examples:

• audio gain (wsb:gain)
• detected language (wsb:language_detected) : sub-property of dcterms:language
• number of explicit lyrics (wsb:explicit_lyrics_count)
• presence of explicit lyrics (wsb:has_explicit_lyrics)
• name without title (wsb:name_without_accent) : sub-property of foaf:name

Examples of terms reused from other ontologies or common vocabularies

To describe songs:

• performer (mo:performer) : from the Music Ontology http://purl.org/ontology/mo/
• author (schema:author) : from Schema.org Vocabulary http://schema.org/
• publication date (schema:Published) : from Schema.org Vocabulary http://schema.org/

To describe artists:

• homepage (mo:homepage) : from the Music Ontology http://purl.org/ontology/mo/
• associated musical artist (dbo:associatedMusicalArtist) : from the DBpedia ontology http://dbpedia.org/ontology/
• genre (schema:genre) : from Schema.org Vocabulary http://schema.org/

To describe albums:

• title (dcterms:title) : from the Dublin Core Metadata Vocabulary http://purl.org/dc/terms/
• upc (mo:upc) : from the Music Ontology http://purl.org/ontology/mo/
• release date (schema:releaseDate) : from Schema.org Vocabulary http://schema.org/

To describe chords:

• chord (chord:chord) : from the Chord Ontology http://purl.org/ontology/chord/
• confidence (af:confidence) : from the Audio Features Ontology http://purl.org/ontology/af/
• duration (schema:duration) : from Schema.org Vocabulary http://schema.org/