Rock in China - Semantic Approach

Classes

Every category is in general treated as a semantic class within Semantic Mediawiki. However NOT ALL categories are to be used as classes, due to the fact that a lot of categories have been implemented for convenience, out of historic reasons and for performance issues when calling certain functions.

As such ONLY the following CATEGORIES are to be seen as CLASSES:

In general, ALL categories that have a DEFAULT FORM for semantic data input and that have a SAMEAS statement towards a semantic class (e.g. music ontology, dbpedia, freebase, etc.), are to be used as SEMANTIC CLASSES.

Properties for each Class

Artist

Note: some people are persons AND artists at the same time. In order to distinguish it is important that TWO pages are being set up:

• NAME
• NAME (Person)

whereas the first concentrates on the artists being active under the scope of his NAME, the second page is to be about him/her as a person, i.e. including none-artist achievements. That could be e.g. filmography or producer or recorder, etc.

For artists the following properties are being proposed:

sameas:db:Band --> included via Category:Artist sameas linkage

Please note that it is extremely difficult to generate galliers with the inline queries #ask, see also http://www.mediawiki.org/wiki/Help_talk:Templates#Gallery_In_a_Template

Foreign Artist

Records

For records the following properties are being proposed:

Events (incl. Festivals)

Festivals are the same as events, however have a longer duration and usually a more complex schedule (additional sections required).

Venues

For venues the following properties are being proposed:

Cities

For cities the following properties are being proposed:

• location
• same as owl - wikipedia / dbpedia

Articles

For articles the following properties are being proposed:

For the subcategory of history related articles the following properties are being proposed:

Magazines

Books

Websites

Instruments

Person

Note: some people are persons AND artists at the same time. In order to distinguish it is important that TWO pages are being set up:

• NAME
• NAME (Person)

whereas the first concentrates on the artists being active under the scope of his NAME, the second page is to be about him/her as a person, i.e. including none-artist achievements. That could be e.g. filmography or producer or recorder, etc.

Opera

Opera Roles

Opera Characters

Opera Style

Song

Genres

Templates

References - REMOVED

It is the idea to make use off the existing "cite web" templates by using the following Properties:

• author --> Property:Hasreferenceauthor
• title --> Property:Hasreferencetitle
• URL --> Property:HasreferenceURL
• date --> Property:Hasreferencedate
• accessdate --> Property:Hasreferenceaccessdate

These properties and its embedding in the cite template have been removed, as they were not usable.

Further implementations classes & properties

• Tours (as extension of Events)
  • Additional category, additional properties
• Movies
  • Publish Date
  • IMDB Link (sameas)
  • Wikipedia Link (sameas)
  • Bandsmentions
• Thesis (sub of Doc, parent of article?)
• Podcasts

Ontologies Used

Process

General information

As per Semantic Forms Extension, it is possible to set up the following:

1. Create Properties (as required)
2. Create Templates (using the properties created)
3. Create Forms for easier User Input

Forms

Semantic Templates

On Traditional Main Page

{{ChooseInstrument}}

calls up

{{#ask: [[Category:Instruments]] [[Image::+]]
|?Image
|?Db:title
|?InstrumentClassification
|format=template
|template=ShowInstrument
|limit=1
|Searchlabel=
|order=random
|link=none
}}

which calls up the ShowInstrument template which includes:

<includeonly><center>[[{{{2}}}|300px|link={{{1}}}]]

This is a {{{3}}}, part of the {{{4}}} family.
</center></includeonly>

On Provinces

{{ProvincePage
|ProvinceName={{PAGENAME}}
|Wikipedia=
}}

On Artists

Articles

On the artist pages the following template is called up:

{{ArticleinPage}}

Which is referring to:

{{#ask: [[Category:Articles]] [[Focus::{{PAGENAME}}]]
|?Db:author
|?Db:title
|?PublishYear
|?PublishDate
|format=template
|link=none
|template=Template:ArticleinBand
}}

and requires the following:

* {{{2}}} ({{{4}}}), [[{{{1}}}|{{{3}}}]]{{#if:{{{5|}}}|, published on {{{5}}}}}<br/>

Videos

Videos within a link section should be added as follows:

{{Youtube
|ID=
|title=
}}

That way the ID is separated from the actual embedded video function and is open for further uses later on.

Downloads

Free music downloads for any kind of page, e.g. artists should be entered as follows:

{{FreeDownload
|Link=
|Title=
}}

That way the download link is semantically associated with the ARTIST, RECORD or SONG page.

On Venues

There are two major templates being used on venue pages:

{{Eventinpage}}

which calls the following function:

{{#ask: [[Category:Events]] [[Event:place::{{PAGENAME}}]]
| ?Image
| ?Db:title
| format=gallery
| imageproperty=Image
| captionproperty=Title
| redirects=-
}}

On Genres

Main Templates

On each Genre page one of the following templates should be included:

{{GenrePage
|GenreName=
|Wikipedia=
|DBPedia=
|Subgenreof=
}}

{{FolkGenrePage
|GenreName=
|Wikipedia=
|DBPedia=
|Subgenreof=
|Abstract=
|Video=
}}

{{OldGenrePage
|GenreName=
|Wikipedia=
|DBPedia=
|Subgenreof=
}}

{{OperaStyle
|Image=
|ImageDescription=
|title=
|hasChinesename=
|hasPinyinname=
|Video=
|wikipedia=
|dbpedia=
}}

Records

As part of the shown data, also genre-specific records are being listed. Three templates are required:

{{#ask: [[Category:Artists]] [[Mo:genre::{{{GenreName}}}]]
| format=template
| template=AskRecord
| link=none
| order=random
| limit=50
}}

that gives artists to

{{#ask: [[Foaf:maker::{{{1}}}]]
| ?Db:title
| ?releaseYear
| ?db:releaseDate
| ?Foaf:maker
| format=template
| template=ShowRecord
| link=none
}}

which gives record results to

* {{{5}}} ({{{3}}}), [[{{{1}}}|{{{2}}}]]{{#if:{{{4|}}}|, published on {{{4}}}}}<br/>

Books

On the genre pages the following template is called up:

{{BooksinPage}}

Which is referring to:

{{#ask: [[Category:Books]] [[Db:nonFictionSubject::{{PAGENAME}}]]
|?Db:author
|?Db:title
|?releaseYear
|?Db:releaseDate
|format=template
|link=none
|template=Template:CallUpBook
}}

and requires the following:

* {{{2}}} ({{{4}}}), [[{{{1}}}|{{{3}}}]]{{#if:{{{5|}}}|, published on {{{5}}}}}<br/>

Instrument Classification

{{InstrumentClassification}}

Instruments

{{MusicianInstrument}}

which calls up

== Musicians playing this instrument ==

{{#ask: [[Category:People]] [[Db:instrument::{{{PAGENAME}}}]]
| format=list
|}

Opera Styles

{{OperaStyle
|title=
|hasChinesename=
|hasPinyinname=
|wikipedia=
}}

Implementation

With Artists and Records being the largest sets of data, implementation will start with a smaller dataset to sample the usecases and gather more experience.

Chosen starting point: Category:Venues

--> Most pages do NOT have a template structure in place.

--> Try to get external Semantic Data imported, e.g. via the sameas:wikipedia link, the location properties of a city (to be used in the Semantic Results Form for Maps)

Via the ASK structure we have a workaround for the breaking of <ref> links when the extension DPL (Dynamic Page List) is being used. E.g. the following query gives the same result as the DPL:

{{#ask:[[Category:Artists]] [[LocationCity::Beijing]] [[Activity start::2000]]}}

However, one has to enter the data first.

Forms

--> The Form:Add a New Venue page is ready to use. And also automatically added to the tab of all Venue pages.

--> The Form:Add a New Artist page is ready to use. And also automatically added to the tab of all Artist pages.

--> The Form:Add a New Record page is ready to use. And also automatically added to the tab of all Record pages.

--> The Form:Add a New City page is ready to use. And also automatically added to the tab of all City pages.

--> The Form:Add a New Event page is ready to use. And also automatically added to the tab of all Event pages.

--> The Form:Add a New Article page is ready to use. And also automatically added to the tab of all Article pages.

Known work-arounds

Getting images to appear on venue pages (until SRF 1.8 is released)

{{#ask: [[Category:Events]] [[EventLocation::{{PAGENAME}}]]
| ?Image
| ?Title
| format=gallery
| imageproperty=Image
| captionproperty=Title
| redirects=-
}}

The redirect function is not yet working. Once SRF 1.8 is released, the "redirect=-" will direct the photo to the page it contained. If that fails then the following example will help:

{{#ask: [[Category:Events]] [[EventLocation::{{PAGENAME}}]]
| ?Image
| ?Title
| ?Has redirect
| format=gallery
| imageproperty=Image
| captionproperty=Title
| redirects=Has redirect
}}

RiC TV - If a band has more than one video

If a band has more than one video, the Youtube ID tag is released as follows:

{{#ask: [[Hasvideo::+]] [[HasChinesename::零壹]]
| ?Hasvideo
| format=list
}}

VOODOO (Hasvideo MoBlynZafWc, 39C1h34VObc, CdCDvOkdmok, Ozj6m0Aqb9A, laNDQMbiuYE, xASwzdtXNG8, pidjyTXF6DQ, DyQTsSjF5fM, wrJxn9JPaJE, JMNHf5lD_dU, xzR3tcrunhY)

As such the YoutubeID template that is being used:

{{#ev:youtube|{{{2}}}|480}}
This video is from {{{1}}}.

doesn't understand the input it gets from:

{{#ask: [[Hasvideo::+]]
| ?Hasvideo
| format=template
| template=YoutubeID
| order=random
| limit=1
| searchlabel=
}}

As such we have to change the template to understand that if there are more than one value he has to make another random.

WORKAROUND:

<includeonly>{{#arraydefine:video|{{{2}}}|,|}}{{#ev:youtube|{{#arrayindex:video|{{Rand|{{#arraysize:video}}}}}}|480}}

This video is from {{{1}}}. </includeonly>

Now, only ONE video is shown, randomly chosen from the band page.

The general functionality can also be called upon via:

{{PlayVideo
|Genre=
}}

with one allowed genre.

RDF Export

Currently most imported ontologies don't work in the RDF Export due to URI referencing issues.

foaf: URI clarified

mo: URI clarified

db: URI clarified

event: URI clarified

owl: URI clarified

Geographical coordinates are not being exported via RDF, check e.g. pages BEIJING and D-22

Intra-Wiki linkage and Inter-Wiki linkage

An important aspect of the semantic web and open linked data is the linkage that applies between pages.

At Rock in China, there are a number of cross-links available, e.g.

Artist links to City and Year of Founding

these links should be semantically attributed to enable machines to read the structure.

At Rock in China we propose the following interlinks:

Artist --> originatefrom --> ArtistOrigin (City, Country, Province)

Artist --> basedin --> City

Venue --> basedin --> City

City --> sameas --> Wikipedia / dbpedia

Artist --> made --> Record

Record --> maker --> Artist

Festival --> basedin --> City

Enabling Open Linked Data

Via the Property:sameas the following other Open Linked Data Sources are being linked:

• DBPedia
• Freebase
• Musicbrainz

Further information

• Semantic Mediawiki, the homepage of the major extension installed here
• Semantic Web, general wiki about semantic web and Open Linked Data