[[PageOutline]]

= Virtual Language Observatory (VLO =

== Versions and deployment plan ==

||**version**||**[http://catalog.clarin.eu/vlobeta/ in beta]**||**[http://catalog.clarin.eu/vlo/ in production]**|| Milestone || Changes ||
|| 3.0 (development) || -  || - || [milestone:VLO-3.0 milestone] || ||
|| 2.18 (current) ||2014-01-17  ||2014-02-06 || [milestone:VLO-2.18 milestone] || [source:/vlo/tags/vlo-2.18/CHANGES CHANGES] ||
|| [./2.17] ||2013-11-12  ||2013-11-15 || [milestone:VLO-2.17 milestone] || [./2.17] ||
|| [./2.16] ||2013-10-24  ||2013-11-04 || [milestone:VLO-2.16 milestone] ||[source:/vlo/tags/2.16.beta/CHANGES CHANGES] ||
|| [./2.15] ||rolled back to 2.14 (memory problems) ||rolled back to 2.14 (memory problems) || || [source:/vlo/tags/2.15/CHANGES CHANGES]||
|| 2.14 ||May 2013  ||June 2014 || ||  [source:/vlo/tags/2.14.beta.fixed.again/CHANGES CHANGES]|| 


== tickets ==

[report:10 link to all open VLO tickets]

== deployment environments ==

||= Environment =||= Location =||= Configuration =||
||= Beta =|| http://catalog.clarin.eu/vlobeta/ || deleteAllFirst: true ||
||= Production =|| http://catalog.clarin.eu/vlo/ || deleteAllFirst: false\\maxDaysInSolr: 7 ||

== technology used ==

 * SOLR for the backend
 * wicket for the front-end
 * CMDI for the input

== data sources ==

 * See CmdiDataSources 
 * mapping from !MdCollectionDisplayName to !NationalProject: https://trac.clarin.eu/browser/vlo/trunk/vlo_importer/src/main/resources/nationalProjectsMapping.xml

== mapping CMDI > VLO fields and facets ==

see http://lux13.mpi.nl/isocat/clarin/vlo/mapping/

which is based on https://trac.clarin.eu/browser/vlo/trunk/vlo_importer/src/main/resources/facetConcepts.xml

White/Blacklist as suggested by CLARIN-D centres: [[./ManualMapping]]

== VLO Taskforce (CLARIN-D) ==
  [[wiki: VLO Taskforce]]

= Misc =

=== Background ===

 * In general: see [http://hdl.handle.net/11858/00-001M-0000-000F-85F4-5 this paper] for an overview about how the VLO works

=== language codes ===

 * old SIL codes and their ISO-639-3 equivalent: http://www.ethnologue.com/14/show_language.asp?code=ach
 * SIL codes list: http://tal.univ-paris3.fr/mkAlign/mka-online/LanguageCodes.html

=== Demo scenario ===

Google Earth > Language Information > Hoava > Hoava data > lexicon > nice scanned word lists

Multimodal Corpus:
VLO: search 'SVC', select 'SVC' from result list and look at Corpus information and Metadata, maybe 
click on first Link to landing page in BAS repo,
go back to result list (Back-Button), select 'i003' from result list, scroll down in link list
to the second movie link (type mpg), click on it and authentify via AAI, movie plays.

Corpus of printed historical texts (Deutsches Textarchiv):
Country: Germany > Collection: Deutsches Textarchiv > Genre: Gebrauchsliteratur (= functional literature) > name: Davidis, Henriette: Praktisches Kochbuch für die gewöhnliche und feinere Küche. 4. Aufl. Bielefeld, 1849. > Follow link to Landing Page

=== inspiration sources ===

OLAC facet browser: http://dla.library.upenn.edu/dla/olac/index.html