1. TEITOK Dependency Grammar
Maarten Janssen
CELGA-ILTEC, Univ. de Coimbra

2. Dependency Grammar in TEITOK
Tool for working with TEI/XML in linguistics
Fully XML driven corpus environment
Full use of TEI, not just converting verticalized lines to <w>
Modular design
Modules for very different types of corpora
NLP behind the scenes
Search, visualize, edit
GUI for dependency-parsed corpora
Parse sentences
Edit parsed data
Visualized parse trees
Search parsed data

3. Constituency Grammar

4. Dependency Grammar
loves
John
Mary
subj
obj

5. CoNLL-U Format # newdoc # newpar # sent_id = 1
# text = This is a test sentence.
1 This this PRON PD Number=Sing|PronType=Dem 5 nsubj _ _
2 is be AUX VA Mood=Ind| cop _ _
3 a a DET RI Definite=Ind| det _ _
4 test test ADJ A Degree=Pos amod _ _
5 sentence sentence NOUN S Number=Sing root _ _
PUNCT FS _ punct _ _

6. TEITOK Online GUI for working with XML corpora
A corpus consists of a set of XML files
GUI for editing heavy XML files
Corpora beyond mere numbers
Data necessary for non-standard corpora
Normalization, facsimile images, sound, grammar, etc.
Tool for “small corpora”
Historical corpora
Learner corpora
Less Resourced Languages
Spoken corpora
Dialect corpora

10. EWE Text

12. Adding Dependencies (1)
<s>This is a test sentence.</s>

13. Adding Dependencies (1b)
<s>This is a test sentence.</s>
<s> <tok id=”w-1”>This</tok> <tok id=”w-2”>is</tok> <tok id=”w-3”>a</tok> <tok id=”w-4”>test</tok> <tok id=”w-5”>sentence</tok> <tok id=”w-6”>.</tok> </s>

14. Full XML
<l id="s-1" bbox=" " gloss="Don Alfonso of Castile"><tok form="Don" id="w-1" pt="Dom"><hi type="dropcap" n="4" rend="black">D</hi>on</tok> <tok id="w-2" nform="Affonso" form="Afonsso" pt="Alfonso">Afonſſo</tok> <tok id="w-3">de</tok> <tok id="w-4" form="Castela">Caſtela</tok></l> <l id="s-2" bbox=" " gloss="of Toledo, of León,"><tok id="w-5">de</tok> <tok id="w-6">Toledo</tok> <tok id="w-7">de</tok> <tok id="w-8" pt="Leão">Leon</tok></l> <l id="s-3" bbox=" " gloss="King, indeed, of Compostela,"><tok id="w-9" pt="Rei">Rey</tok> <tok id="w-10">e</tok> <tok id="w-11" pt="bem">ben</tok> <tok id="w-12" form="des" pt="de">deſ</tok> <tok id="w-13" nform="Conpostela" pt="Compostela">Copostela</tok></l>

15. Adding Dependencies (1)
<s> <tok id=”w-1”>This</tok> <tok id=”w-2”>is</tok> <tok id=”w-3”>a</tok> <tok id=”w-4”>test</tok> <tok id=”w-5”>sentence</tok> <tok id=”w-6”>.</tok> </s>

16. Adding Dependencies (2)
# newdoc
# newpar
# sent_id = 1
# text = This is a test sentence.
1 This this PRON PD Number=Sing|PronType=Dem 5 nsubj _ _
2 is be AUX VA Mood=Ind| cop _ _
3 a a DET RI Definite=Ind| det _ _
4 test test ADJ A Degree=Pos amod _ _
5 sentence sentence NOUN S Number=Sing root _ _
PUNCT FS _ punct _ _

17. Adding Dependencies (3)
<s> <tok id=”w-1” xpos=”PRON” deprel=”nsubj” head=”w-5”>This</tok> <tok id=”w-2” xpos=”AUX” deprel=”cop” head=”w-5”>is</tok> <tok id=”w-3” xpos=”DET” deprel=”det” head=”w-5”>a</tok> <tok id=”w-4” xpos=”ADJ” deprel=”amod” head=”w-5”>test</tok> <tok id=”w-5” xpos=”NOUN” deprel=”root” head=”0”>sentence</tok> <tok id=”w-6” xpos=”PUNC” deprel=”punct” head=”w-5”>.</tok> </s>

20. Searching Corpus automatically exported to CWB Customized CQP version
Searchable in many aspects
Results shown as XML fragments, created from CWB results
Customized CQP version
TT-CQP can use dependencies in search
a:[word="prata" & deprel="obj"] :: head(a).upos="VERB";
sort head(a).lemma; tabulate a[-1].word, head(a).lemma, head(a).upos