Lexical Markup Framework & LingInfo

© Paul Buitelaar – LREC ISO meeting

May 2008

Lexical Markup Framework &

LingInfo

Paul BuitelaarCompetence Center Semantic Web & Language Technology Lab DFKI GmbH - Saarbrücken, Germany

contributions by Michael Sintek and others (LingInfo); Nils Reiter (lexical enrichment)

© Paul Buitelaar – LREC ISO meeting

May 2008

Overview

Lexical Markup Framework (LMF) Motivation, Model, Example

LingInfo Motivation, Model, Example

Discussion

© Paul Buitelaar – LREC ISO meeting

May 2008

LMF Motivation

Provide a common model for the creation and use of lexical resources

Manage the exchange of data between and among these resources

Enable the merging of individual electronic resources to form extensive global electronic resources

© Paul Buitelaar – LREC ISO meeting

May 2008

LMF Model – “Core Package”

© Paul Buitelaar – LREC ISO meeting

May 2008

LMF Model – “NLP Semantics”

© Paul Buitelaar – LREC ISO meeting

May 2008

LMF Example – ‘Homonymy’

© Paul Buitelaar – LREC ISO meeting

May 2008

LingInfo Motivation

Lexicalized Ontologies Representation of terms instead of ontology class labels Lexical (morphosyntactic) information for such terms – to handle

morphological& syntactic term variations and disambiguation (Lexical) Semantics is strictly in the (domain) ontology

Lexical Ontology Enrichment Increasing number of ontologies published on (Semantic) Web Reuse of knowledge in semantic annotation, ontology-based

information extraction, question answering, etc. Enrichment/integration of ontologies with lexical knowledge –

terminology, synonyms, translations, morphosyntactic information

© Paul Buitelaar – LREC ISO meeting

May 2008

Ontologies – Multilingual Labels (RDF)

University

School is_part_of

Student

studies_at

Staff

works_at

Campuslocated_at

has_German_term

has_US-English_term

has_Dutch_termFakultät

SchoolFaculteit

© Paul Buitelaar – LREC ISO meeting

May 2008

Ontologies – Multilingual Terms (~OMV)

University

School is_part_of

Term

has_term

Fakultät

instance_of

DE

language

faculteit

instance_of

NL

language

school

EN-US

language

Student

studies_at

Staff

works_at

Campuslocated_at

© Paul Buitelaar – LREC ISO meeting

May 2008

Lexicalized Ontologies - LingInfo

Term-1

fakulteitsgebouw

hasOrthographicForm

NL

hasLang

hasMorphSynInfo

WordForm-1

N

hasPoS

Term-2

hasStem

Term-3

hasStem

fakulteit

hasOrthographicForm

gebouw

hasOrthographicForm

LingInfo

instanceOf

SCHOOL

hasLingInfo

“department building”“school”

“department”“school”

“building”

© Paul Buitelaar – LREC ISO meeting

May 2008

Mapping Lexical to Semantic Structure

Term-1

fakulteitsgebouw

hasOrthographicForm

NL

hasLang

hasMorphSynInfo

WordForm-1

instanceOf

LingInfo

instanceOf

SCHOOL

hasLingInfo

LingInfo

instanceOf

BUILDING

hasLingInfo

“department building”“school”

isLocatedAt

N

hasPoS

Term-2

hasStem

Term-3

hasStem

fakulteit

hasOrthographicForm

gebouw

hasOrthographicForm

“department”“school”

“building”

© Paul Buitelaar – LREC ISO meeting

May 2008

Derive synonyms from WordNet Check if class names are lexical entries in WordNet Extract synonyms from corresponding synsets Sense Disambiguation (pick the right synset)

Derive translations from Wikipedia Check if class names correspond to Wikipedia pages Extract translations through “Interlanguage links“ Sense Disambiguation

Derive morphosyntactic information from corpora Reverse engineer the lexicon behind PoS-tagger / Morph

Analyzer (advantage: disambiguation in context)

Lexical Enrichment

© Paul Buitelaar – LREC ISO meeting

May 2008

LingInfo Info http://olp.dfki.de/LingInfo/

© Paul Buitelaar – LREC ISO meeting

May 2008

Finance OntologyGeo Ontology

LingInfo Ontology

LingInfo ISO LangCodehasLang

Discussion – Homonymy (bank)

X100

hasLingInfo

X100.1

river

hasOrthographicForm

EN

hasLang

hasMorphSynInfo

Y345

instanceOf

X123

hasLingInfo

X123.1

bank

hasOrthographicForm

EN

hasLang

Z278

hasMorphSynInfo

hasLingInfo

Z278.1

money

hasOrthographicForm

EN

hasLang

hasMorphSynInfo

WordFormhasMorphSynInfo

...

...

instanceOf instanceOf

© Paul Buitelaar – LREC ISO meeting

May 2008

SUMODOLCE

LingInfo Ontology

LingInfohasLang

hasMorphSynInfo

Automotive Ontology

Discussion – Metonymy (car-engine)

4657

hasLingInfo

4657.1

car

hasOrthographicForm

EN

hasLang

hasMorphSynInfo

39890290‘artifact’

instanceOf

8393

8393.1

engine

hasOrthographicForm

EN

hasLang

23908239‘process’

hasMorphSynInfo

instanceOf

“switch off the car” > ‘switch off the engine (process) of the car’

hasPart

hasLingInfo

© Paul Buitelaar – LREC ISO meeting

May 2008

SUMODOLCE

LingInfo Ontology

LingInfohasLang

hasMorphSynInfo

Sports Ontology

Discussion – Syst. Polysemy (act/human)

223AX

hasLingInfo

223AX.1

catcher

hasOrthographicForm

EN

hasLang

hasMorphSynInfo

39495672‘human’

instanceOf

345ZD

345ZD.1

to catch

hasOrthographicForm

EN

hasLang

468934208‘act’

hasMorphSynInfo

instanceOf

“John is an excellent catcher / a fraud / a new arrival / a pushover / ...”

hasAction

hasLingInfo

http://www.dfki.de/~paulb/corelex.html

© Paul Buitelaar – LREC ISO meeting

May 2008

Thanks for Your Attention!

http://olp.dfki.de/LingInfo/http://olp.dfki.de/OntoSelect/http://www.dfki.de/~paulb/corelex.html