Research Interests
Probabilistic and Symbolic NLP, POS Tagging, Parsing, Finite-State Tools, Computational Morphology, Statistical Machine Translation
Software
TreeTagger a tool for automatic annotation of text corpora with part-of-speech and lemma information (POS tagger and lemmatizer)
RFTagger a POS tagger for fine-grained POS tagsets.
SFST a toolbox for the implementation of morphological analysers and other programs which are based on finite state transducers.
SMOR a German finite-state morphology implemented in the SFST programming language.
BitPar an efficient parser for Treebank grammars.
LoPar a parser for head-lexicalized probabilistic context-free grammars.
VPF a graphical viewer for parse trees and parse forests including parses with feature structures.
LSC a statistical clustering software for predicate-argument tuples with a fixed number of arguments.
PAC a statistical clustering software for predicate-argument tuples with a variable number of arguments. The selectional preferences are generalized by means of a WordNet hierarchy.
