The Oslo-Bergen Tagger

The Oslo-Bergen tagger is a robust morphological and syntactic tagger developed at the University of Oslo and at Uni Computing in Bergen over several years. The tagger consists of three main modules: a preprocessor with multitagger and compound analyser (ref3), a grammar module for morphological and syntactic disambiguation (Constraint Grammar) (ref2) and a statistical module that removes the last of the remaining morphological ambiguity (only for Bokmål). The Constraint Grammar module uses a compiler developed at the University of Southern Denmark in Odense. The multitagger uses the lexicon Norsk ordbank.

Extended metadata

resource Common Info
- resource Type: toolService
- identification Info
  - resource Name: The Oslo-Bergen Tagger
  - description: The Oslo-Bergen tagger is a robust morphological and syntactic tagger developed at the University of Oslo and at Uni Computing in Bergen over several years. The tagger consists of three main modules: a preprocessor with multitagger and compound analyser (ref3), a grammar module for morphological and syntactic disambiguation (Constraint Grammar) (ref2) and a statistical module that removes the last of the remaining morphological ambiguity (only for Bokmål). The Constraint Grammar module uses a compiler developed at the University of Southern Denmark in Odense. The multitagger uses the lexicon Norsk ordbank.
  - resource Short Name: obt
  - url: http://www.tekstlab.uio.no/obt-ny/english/index.html
  - P I D: http://hdl.handle.net/11538/0000-0005-E7C6-7
- distribution Info
  - licence Info
    - user Category: Public
    - distribution Access Medium: downloadable
    - download Location: https://github.com/noklesta/The-Oslo-Bergen-Tagger
    - licence
      - licence Family: GNU
      - licence Name: General Public License (GPL)
      - licence Url: http://www.gnu.org/licenses/gpl.html
      - conditions Of Use: BY
      - conditions Of Use: SA
    - licensor:
    - actor Info
      - actor Type: organization
      - organization Info
        organization Name: University of Oslo
        organization Name: Universitetet i Oslo
        organization Short Name: UiO
        organization Short Name: UoO
        department Name: Department of Linguistics and Scandinavian Studies
        department Name: Institutt for lingvistiske og nordiske studier (ILN)
      - communication Info
        email: tekstlab-post@iln.uio.no
        url: http://www.hf.uio.no/iln/om/organisasjon/tekstlab/
        address: Box 1102 Blindern
        zip Code: 0317
        city: OSLO
        country: Norway
    - distribution Rights Holder
      - actor Info
        actor Type: organization
        organization Info
        organization Name: University of Oslo
        organization Name: Universitetet i Oslo
        organization Short Name: UiO
        organization Short Name: UoO
        department Name: Department of Linguistics and Scandinavian Studies
        department Name: Institutt for lingvistiske og nordiske studier (ILN)
        communication Info
        email: tekstlab-post@iln.uio.no
        url: http://www.hf.uio.no/iln/english/
        address: Box 1102 Blindern
        zip Code: 0317
        city: OSLO
        country: Norway
  - ipr Holder
    - actor Info
      - actor Type: organization
      - organization Info
        organization Name: The Text Laboratory
        organization Short Name: Textlab
        department Name: Department of Linguistics and Scandinavian Studies, University of Oslo
    - actor Info
      - actor Type: person
      - organization Info
        organization Name: Uni Research AS
        department Name: Uni Research Computing
- contact
  - actor Info
    - actor Type: organization
    - organization Info
      - organization Name: The Text Laboratory
      - organization Short Name: Textlab
      - department Name: Department of Linguistics and Scandinavian Studies, University of Oslo
    - communication Info
      - email: tekstlab-post@iln.uio.no
      - url: http://www.hf.uio.no/iln/om/organisasjon/tekstlab/
      - address: Box 1102 Blindern
      - zip Code: 0317
      - city: OSLO
      - country: Norway
  - actor Info
    - actor Type: person
    - person Info
      - surname: Meurer
      - given Name: Paul
      - sex: male
      - position: Senior researcher
      - affiliation:
      - organization Info
        organization Name: Uni Research AS
        department Name: Uni Research Computing
    - communication Info
      - email: paul.meurer@uni.no
- metadata Info
  - metadata Creation Date: 16.03.2015
  - metadata Last Date Updated: 05.06.2018
  - metadata Creator
    - actor Info
      - actor Type: person
      - person Info
        surname: Hagen
        given Name: Kristin
      - organization Info
        organization Name: The Text Laboratory
        organization Short Name: Textlab
        department Name: Department of Linguistics and Scandinavian Studies, University of Oslo
      - communication Info
        email: kristin.hagen@iln.uio.no
        url: http://www.hf.uio.no/iln/om/organisasjon/tekstlab/
        address: Box 1102 Blindern
        zip Code: 0317
        city: OSLO
        country: Norway
- validation Info
  - validated: true
  - validation Mode Details: Bokmål: The evaluation of the morphological constraint grammar modul shows a success rate (recall) of 99% and a precision of 96%. This gives an f-measure of 97.5% (if recall and precision are weighted equally). The tagger was tested on a 30 000 words long evaluation corpus with texts from newspapers, magazines, journals, government reports and novels. Including the statistical module to perform complete disambiguation of the evaluation corpus yields a tagger accuracy of 96.5%. This number includes both fully disambiguation of morphology and lemma. Nynorsk: Evaluation is so far only made for the original CG1-module of the Oslo-Bergen tagger. This module had a success rate (recall) of 98.7% with 93.6% precision. This gives an f-measure of 96.2%. The evaluation corpus for Nynorsk also had about 30 000 words taken from newspapers, magazines, journals, government reports and novels.
  - validation Report Unstructured
    - role: validationReport
    - document Unstructured: See in publications: http://www.tekstlab.uio.no/obt-ny/english/publications.html
- resource Documentation Info
  - documentation Unstructured
    - role: documentation
    - document Unstructured: http://www.tekstlab.uio.no/obt-ny/english/index.html
- resource Creation Info
  - creation Start Date: 1996
  - creation End Date: 2009
  - resource Creator
    - actor Info
      - actor Type: organization
      - communication Info
        email: tekstlab-post@iln.uio.no
        url: http://www.hf.uio.no/iln/om/organisasjon/tekstlab/
        address: Box 1102 Blindern
        zip Code: 0317
        city: OSLO
        country: Norway
  - funding Project:
  - project Info
    - project Name: the Tagger Project (Taggerprosjektet 1996 – 1998)
    - funding Type: nationalFunds
    - funder: The Research Council of Norway
    - funding Country: Norway
    - project Start Date: 01.01.1996
    - project End Date: 31.12.1998
  - funding Project:
  - project Info
    - project Name: Norwegian Newspaper Corpus (2007-2009)
    - funding Type: nationalFunds
    - funder: The Research Council of Norway
    - funding Country: Norway
    - project Start Date: 01.01.2007
    - project End Date: 31.12.2009

dc:type	toolService
dc:title	The Oslo-Bergen Tagger
dc:identifier	oai:tekstlab.uio.no:oslo-bergen-tagger
dc:description	The Oslo-Bergen tagger is a robust morphological and syntactic tagger developed at the University of Oslo and at Uni Computing in Bergen over several years. The tagger consists of three main modules: a preprocessor with multitagger and compound analyser (ref3), a grammar module for morphological and syntactic disambiguation (Constraint Grammar) (ref2) and a statistical module that removes the last of the remaining morphological ambiguity (only for Bokmål). The Constraint Grammar module uses a compiler developed at the University of Southern Denmark in Odense. The multitagger uses the lexicon Norsk ordbank.
dc:publisher
dc:format	downloadable
dc:date	1996
dc:date	2009
dc:rights	Public
dc:rights	GNU
dc:rights	General Public License (GPL)
dc:rights	http://www.gnu.org/licenses/gpl.html
dc:lang	Norwegian

The Oslo-Bergen Tagger

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