VISL - Corpus Linguistics

VISL - Visual Interactive Syntax Learning

Corpus search interface


VISL's grammatical and NLP research are both largely corpus based. On the one hand, VISL develops taggers, parsers and computational lexica based on corpus data, on the other hand these tools - once functional - are used for the grammatical annotation of large running text corpora. The main methodological approach for automatic corpus annotation is Constraint Grammar (CG), a word based annotation method.	Hybrid systems, making use of both function based phrase structure and dependency grammar, are used to create syntactic trees from CG output. VISL is involved in many aspects of corpus linguistics: corpus compilation, automatic corpus annotation, manual linguistic corpus revision, providing internet access for searching corpora and language specific corpus based linguistic research.

The following is an overview over corpus annotation projects in VISL's various research languages:

Language	Corpus	Type	Size (words)	Grammatical annotation	Manual revision	Partners/Projects
	Corpus90/2000	News text, prose	2 x 26 Million	PoS, morphology, syntax, CG-dep.	200.000 words	DSL
	Arboretum	News text, prose	10 Million	Treebank (TIGER-compatible)	200.000 words	Nordic Treebank Network
	dfk-Skalk	Journal of Archeology	600.000	PoS, morphology, syntax, CG-dep.	-	Skalk
	dfk-folketing	Parliamentary debates	7 Million	PoS, morphology, syntax, CG-dep.	-	Source: Folketing
	Floresta Sintá(c)tica	Newspaper	1 Million	Treebank (TIGER-compatible)	65.000+ words	Linguateca
	CETEMPúblico	Portuguese newspaper	192 Million	PoS, morphology, syntax, CG-dep.	cp. Floresta sintá(c)tica	AC/DC project, Linguateca, Ref.: Público
	CETENFolha	Brazilian newspaper	24 Million	PoS, morphology, syntax, CG-dep.	cp. Floresta sintá(c)tica	AC/DC project, Linguateca, Ref.: Folha de São Paulo
	Europarl-pt	Parliamentary debates	29 Million	PoS, morphology, syntax, CG-dep.	-	Ref.: P. Koehn
	Cartas-LR	Historical letters to/by the editor	200.000 words	PoS, morphology, syntax, treebank	10.000 words	Ref.: Projeto para a História do Português Brasileiro
	Various	Dialectal speech data, Historical Portuguese	70.000	PoS, morphology, syntax, CG-dep.	-	(1) The CORDIAL-SIN project (2) The Tycho Brahe Project
	Arboratoire/Freebank	News text, prose	130.000	PoS, morphology, syntax, CG-dep.	30.000 words	ATILF
	ECI-FR1	Newspaper	4.4 Million	PoS, morphology, syntax, CG-dep.	-	Ref.: Le Monde, ECI/EACL
	Europarl-fr	Parliamentary debates	29 Million	PoS, morphology, syntax, CG-dep.	-	Ref.: P. Koehn
	ECI-DE1	Newspaper (Frankfurter Rundschau)	34 Million	PoS, morphology, syntax, CG-dep.	-	Ref.: Frankfurter Rundschau, ECI/EACL
	BZK-tag	Newspaper	4 Million	PoS, morphology, syntax, CG-dep.	-	Bonner Zeitungskorpus
	MAK-tag	Newspaper	3 Million	PoS, morphology, syntax, CG-dep.	-	Mannheimer Korpus
	Europarl-de	Parliamentary debates	29 Million	PoS, morphology, syntax, CG-dep.	-	Ref.: P. Koehn
	BNC-tag	News text, prose	35 Million	PoS, morphology, syntax, CG-dep.	-	Ref.: British National Corpus
	Europarl-en	Parliamentary debates	29 Million	PoS, morphology, syntax, CG-dep.	-	Ref.: P. Koehn
	KEMPE	Early modern play texts	8.9 Million	PoS, morphology, syntax, CG-dep.	-	University of Bristol
	ECI-ES2	Newspaper	1.4 Million	PoS, morphology, syntax, CG-dep.	-	Ref.: El Diario Sur, ECI/EACL
	Europarl-es	Parliamentary debates	29 Million	PoS, morphology, syntax, CG-dep.	-	Ref.: P. Koehn
	Monato	News magazine	2 Million	PoS, morphology, syntax, CG-dep.	-	Ref.: Monato
	Eventoj	Electronic News letter	1.6 Million	PoS, morphology, syntax, CG-dep.	-	Ref.: Eventoj
	Elibrejo	Literature	7 Million	PoS, morphology, syntax, CG-dep.	-	Ref.: eLibrejo
	Zamenhof	Esperanto Classics	1.5 Million	PoS, morphology, syntax, CG-dep.	-	-
	TTT	Internet	3.6 Million	PoS, morphology, syntax, CG-dep.	-	-
	Arborest	News text, prose	3.500	Treebank (TIGER-compatible)	at CG-level	Nordic Treebank Network, Ref.: CG Annotated corpus of Estonian