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European Patent Office. European Machine Translation Programme. Wolfgang Täger. December 2006. Programme Partners and Goals. Trigger: Success of JP-EN patent translation Agreement EPO - Member States MT of patents/ abstracts/ communications to/from English Three language pairs per year

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European

Patent Office

European Machine Translation Programme

Wolfgang Täger

December 2006


Programme Partners and Goals

  • Trigger: Success of JP-EN patent translation

  • Agreement EPO - Member States

    • MT of patents/ abstracts/ communications to/from English

    • Three language pairs per year

    • First three languages: FR - DE - ES

  • Candidates for next year: Swedish, Dutch, Italian, Romanian, Greek


  • MT engine

    • Trial with SMT system (Language Weaver)

    • Call for tender: Winner Worldlingo (Systran)

    • Going public ([email protected]): December 2006

    • Needed: Improve translation by specific dictionaries


    Dictionary format

    • Desiderata

    • open standard

    • XML-Unicode

    • support features of MT engines

    • support conditional translations (e.g. based on IPC)

    • Is not intended for terminology (no definitions, lexical focus and no semantic focus).

    • OLIF format was chosen

      How to get dictionaries ? By bilingual term extraction !


    Available corpora

    • 560.000 EP-B publications => claims in EN,DE,FR

    • 300.000 DE-T2 publications

    • 37.000 ES-B3/T3 publications

    • => Align corpora for term extraction, concordancing, translation memory (and SMT)

    ES B3/T3 (LaTex)

    DE-T2

    EP-B1

    DESC ES

    DESC DE

    DESC EN OR FR OR DE

    CL ES

    (CL DE)

    CL EN

    CL FR

    CL DE


    Available corpora

    • 560.000 EP-B publications => claims in EN,DE,FR

    • 300.000 DE-T2 publications

    • 37.000 ES-B3/T3 publications

    • => Align corpora for term extraction, concordancing, translation memory (and SMT)

    ES B3/T3 (LaTex)

    DE-T2

    EP-B1

    DESC ES

    DESC DE

    DESC EN OR FR OR DE

    CL ES

    (CL DE)

    CL EN

    CL FR

    CL DE


    Alignment & Extraction

    • Alignment: Trial at EPO with internally developed SW

    • Result was not improved by external companies during call for tender.


    Alignment & Extraction

    • Call for tender for bilingual term extraction

    • Winner: DFKI

    • Alignment of corpora, POS tagging, Identification of terms

    • Pairing of terms using clues like co-occurrence score, string similarity, grammatical clues, position, available dictionaries, ...

    • Providing further information like gender, inflection, transitivity, countable, ...


    Validation & Concordancing

    • Development of OLIF editor at EPO

    • Remove noise

    • Correct entries

    • Use concordancer (provides statistics based on parallel corpora)

    • => DEMO


    OLIF format

    • Support of more languages

    • Clarification of inflection scheme

    • Clarification of term vs lex approach

    • Tools


    Relational database ??

    Transl

    SemRel

    Concept

    Term

    Naming

    SurfForm

    InflForm

    Lemma

    RegEx

    LexType

    Infl


    Relational database ??

    Transl

    SemRel

    „hot drink ...“

    grüner Tee

    Naming

    grüner

    Nom. Sg. str. f. pos.

    grün

    -er

    DE, Adj

    iLike „klein“


    End

    • Thank you!


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