improved parser for simple croatian sentences kristina vučković, božo bekavac, zdravko dovedan...
TRANSCRIPT
Improved Parser forSimple Croatian Sentences
Kristina Vučković, Božo Bekavac, Zdravko Dovedan
University of Zagreb, Faculty of Humanities and Social Sciences
{kvuckovi, bbekavac,zdovedan}@ffzg.hr
NooJ2010 Komotini, Greece
2010-05-28
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Problems if there is a nominal
predicate
if the <NP> node is a coordination made of 2 or more <NP>’s of different gender
ex. The child was very smart.
-> The child was
->was very smart.
ex. The boy and a girl
were very smart.
->The boy and a girl =><NP+p+m>
Last Year’sSolved
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Nominal Predicate simple <NP>
single noun He is a boy.
complex <NP> single noun + any number of adjectives,
pronouns, numerals proceeding and agreeing with the noun in number, gender and case He is my young friend.
single pronoun He is mine.
single adjective He is young.
single numeral He is the first.
adverb He is great.
redefined <NP><(PRO|A|M)*N><(PRO|A|M)*PRO><(PRO|A|M)*A><(PRO|A)*M>
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Examples Pravda i opraštanje su
dva temeljna stupa mira. Justice and forgiveness
are two main pillars of peace.
Cijene su izuetno povoljne. Prices are extremely
affordable.
To je izvrsno. This is great.
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Measures and Explanations
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<to be,VP> <NP+Nom>=Adjective same form as <VP+Passive>Knjiga je napisana… The book is written…Napisana knjiga je … The written book is…
Precision:
Recall:
72,72
69,56
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Coordination of multiple <NP> nodes
1. all <NP> are in the same gender <NP+f<NP+fjabuka>, <NP+fkruška> i <NP+fšljiva>>
an apple, a pear and a plum2. combination of masculine and feminine <NP> <NP+m<NP+fjabuka>, <NP+fkruška> i
<NP+mananas>> an apple, a pear and a pineapple
3. combination of masculine and neutral <NP> <NP+m<NP+mananas> i <NP+ndijete>>
a pineapple and a child4. combination of neutral and feminine <NP> <NP+m<NP+fjabuka> i <NP+ndijete>>
an apple and a child
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Coordination of two or more proper nouns <NP+mZagreb> i <NP+mDubrovnik> <NP+mZagreb> i <NP+fBarcelona>
<NP+mTin Ujdur> i <NP+mFilip Kocijan>
<NP+fEma Ujdur> i <NP+mFilip Kocijan>
<NP+mUjdur> i <NP+mKocijan> <NP+fUjdur> i <NP+fKocijan> <NP+fUjdur> i <NP+mKocijan>
<NP+m ><NP+m >
<NP+m ><NP+m >
Last Names only
<NP+m > su otišli
<NP+f > su otišle
<NP+m > su otišli
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Example of concordance
Measures
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Precision:
Recall:
100
90
Thank you for your attention.
The research within the project ACCURAT leading to these results has received funding from the
European Union Seventh Framework Programme
(FP7/2007-2013), grant agreement no 248347.
www.accurat-project.eu