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ACL
2009
13 years 2 months ago
Exploiting Heterogeneous Treebanks for Parsing
We address the issue of using heterogeneous treebanks for parsing by breaking it down into two sub-problems, converting grammar formalisms of the treebanks to the same one, and pa...
Zheng-Yu Niu, Haifeng Wang, Hua Wu
ACL
2006
13 years 6 months ago
Mildly Non-Projective Dependency Structures
We present parsing algorithms for various mildly non-projective dependency formalisms. In particular, algorithms are presented for: all well-nested structures of gap degree at mos...
Marco Kuhlmann, Joakim Nivre
ACL
2008
13 years 6 months ago
Unlexicalised Hidden Variable Models of Split Dependency Grammars
This paper investigates transforms of split dependency grammars into unlexicalised context-free grammars annotated with hidden symbols. Our best unlexicalised grammar achieves an ...
Gabriele Antonio Musillo, Paola Merlo
LRE
2008
100views more  LRE 2008»
13 years 4 months ago
LTAG-spinal and the Treebank
Abstract. We introduce LTAG-spinal, a novel variant of traditional Lexicalized Tree Adjoining Grammar (LTAG) with desirable linguistic, computational and statistical properties. Un...
Libin Shen, Lucas Champollion, Aravind K. Joshi
COLING
2010
12 years 11 months ago
Data-Driven Parsing with Probabilistic Linear Context-Free Rewriting Systems
This paper presents a first efficient implementation of a weighted deductive CYK parser for Probabilistic Linear ContextFree Rewriting Systems (PLCFRS), together with context-summ...
Laura Kallmeyer, Wolfgang Maier