Download ppt - The encoding of adjectives in the Dutch semantic database CORNETTO LREC, Marrakech 28-29-30 May 2008 Isa Maks 1 Piek Vossen 1, 2, Roxane Segers 1 Hennie

The encoding of adjectives in the Dutch semantic database CORNETTO

LREC, Marrakech 28-29-30 May 2008

Isa Maks1

Piek Vossen1, 2,Roxane Segers1

Hennie van der Vliet1

1: Faculty of Arts, Vrije Universiteit Amsterdam2: Irion Technologies, Delft

LREC, Marrakech 28-29-30 May 2008 2

Presentation Overview

The project Cornetto: overview

The semantic Database: Cornetto

The encoding of general language adjectives in Cornetto

problems and solutions

A possible strategy for disambiguating adjective senses with the help of the Cornetto database and the ontology


Project Cornetto Financed by NTU Dutch Language Union

STEVIN: Dutch Flemish Research Programme for Dutch Lanuage and

Speech Technology (2004-2011)

Consortium partnersVUA (Vrije Universiteit Amsterdam, General Linguistics Department)

UvA (University of Amsterdam, Informatics Institute)

K.U. Leuven (Katholieke Universiteit Leuven, Department of Computer Science)

Irion Technologies BV Delft

Results the Cornetto Database : a semantic database for Dutch

Lexical Acquisition Toolkit

Domain Acquisition Toolkit

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Dutch Wordnet

ReferentieBestand

NederlandsEnglish Wordnet

(PWN) SUMO (KIF)

Align/Merge

Cornetto

Entry-Lexical Unit-Synset-PWN-pointer-SUMO term

COmbinatorial Relational NEtwork voor Taal Toepassingen

Manual Correction

1. Automatic Alignment2. Manual Correction

40.000 entries generic and central part of the language

5

antonymnear-syn


Combining existing resources

Automatic Alignment LUs and Synsets Manual Correction of most frequent entries- Adding missing senses- Correcting conflicts- Editing synsets

Linking to SUMO, PWN


Adjectives-problems

Adjectives in generalwhat is the real meaning of an adjective?

a warm coat , warm water

DWN adjective synsets not corrected manually

large fuzzy synsets

bad alignment with English Wordnet

bad alignment with SUMO

SUMO not tested for adjective concepts the alignment between SUMO and the PWN adjectives is corrected manually only for few

cases - > the ontology is not complete


Adjectives-solution

Using an existing classification for Adjectives (Hundsnurscher & Splett, 1982)

coverage of 500 most frequent adjectives descriptional framework for all adjectives in German lexicographic approach used (and tested) in Germanet

Merging with SUMO coverage of all general language concepts rich hierarchy axioms formal definitions


Merging H&S and SUMOH&S SUMO

perception-related PerceptionalAttribute

material-related PhysicalAttribute

body-related ++

spirit-related ++

character/behaviour TraitAttribute

mood-related EmotionalState

relational RelationalAttribute

evaluative NormativeAttribute

temporality-related ++

social-related RelationalAttribute

material-related

TextureAttribute

SaturationAttribute

ConsistencyAttribute

PurityAttribute

GravityAttribute

..

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SUMO’s Attribute hierarchy

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SubjectiveAssessmentAttribute SUMO

most PWN adjectives -> SubjectiveAssessmentAttributehe is a good cook, this is a complete failure OK

a friendly woman, a heavy bag ?

Cornettofriendly TraitAttribute

heavy GravityAttribute

good PositiveEvaluationAttribute (subsumed by SubjectiveAssessmentA)

Ex.:Sense 1: aardig (kind) een aardige man (a kind man) TraitAttribute

Sense 2: aardig (rather good) een aardig boek (a nice book) PositiveEvaluationAttribute


‘Word sense Disambiguation’

Can we make use of the ontology to disambiguate between Emotion-related and Temperature-related senses (of one word) ?

kil (1) (chilly, cold) TemperatureAttribute

een kille zomeravond (a chilly summer evening) kil (2) (chilly, unfriendly) TraitAttribute

een kille moeder (a cold mother)

warm (1) (warm, hot) TemperatureAttribute

het water is nog warm (the water is still warm) warm (2) (cordial, warm) TraitAttribute

een warme begroeting (a warm greeting)

LREC, Marrakech 28-29-30 May 2008

Cornetto Workshop, VU, June, 7th 2007 14

TraitAttributeSUMO Term attributed to the Noun

chilly , unfriendly

kille blik (look) FacialExpression

kille begroeting (greeting) Greeting

kille reactie (reaction) Expressing

kille vijandigheid (hostility) ViolentContest

kille berekening (calculation) Expressing

kille woede (anger) EmotionalState

kille passie (passion) EmotionalState

kille sfeer (atmosphere) PsychologicalAttribute

warm, cordial

warme ontvangst (reception) Greeting

warme steun (support) Cooperating

warm applaus (applause) Expressing

warm contact (contact) Communication

uit een warm hart (heart) EmotionalState

warme gevoelens (feelings) PsychologicalAttribute


SocialInteraction, PsychologicalAttribute

SocialInteraction (Noun) + TraitAttribute (ADJ)

PsychologicalAttribute (Noun) + TraitAttribute (ADJ)


TemperatureAttributeSUMO Term

chilly , cold

kille tocht (draught) GasMotion

kille wind(wind) Wind

kil marmer (marble) Mineral

kille zomerdag(summer day) Day

kille lucht (air) Air

warm, hot

warme zomer (summer) SeasonOfYear

warm water (water) Water

warm koffie (coffee) Food

warm eten (food) Food

warme jas (coat) Clothing

warme junimaand (month) Month

warm sopje (soapsuds) Water


Substance, TimePeriod, GasMotion, ..

Substance (Noun) + TemperatureAttribute (ADJ)

TimePeriod (Noun) + TemperatureAttribute (ADJ)

GasMotion (Noun) + TemperatureAttribute (ADJ)


So..

If an adjective has 2 senses and 1 is related to emotion and the other to temperature then

SocialInteraction (Noun) + TraitAttribute (ADJ)

PsychologicalAttribute (Noun) + TraitAttribute (ADJ)

Substance (Noun) + TemperatureAttribute (ADJ)

TimePeriod (Noun) + TemperatureAttribute (ADJ)

GasMotion (Noun) + TemperatureAttribute (ADJ)


More Information

Cornetto project http://www.let.vu.nl/onderzoek/projectsites/cornetto/start.htm

Cornetto Database: Licensed from TST-centrale, Nederlandse Taalunie (by September 2008) www.tst.inl.nl

SUMO http://www.ontologyportal.org/