20 search results - page 1 / 4 » On the Role of Lexical Features in Sequence Labeling |
EMNLP
2009
13 years 4 months ago
2009
We use the technique of SVM anchoring to demonstrate that lexical features extracted from a training corpus are not necessary to obtain state of the art results on tasks such as N...
FLAIRS
2008
13 years 9 months ago
2008
This paper shows that semantic role labeling is a consequence of accurate verbal predicate labeling. In doing so, the paper presents a novel type of semantic feature for verbal pr...
EMNLP
2007
13 years 8 months ago
2007
In this technical report, we propose the use of Lexicalized Tree-Adjoining Grammar (LTAG) formalism as an important additional source of features for the Semantic Role Labeling (S...
ACL
2009
13 years 4 months ago
2009
This paper explores methods to alleviate the effect of lexical sparseness in the classification of verbal arguments. We show how automatically generated selectional preferences ar...
ACL
2009
13 years 4 months ago
2009
We describe a semantic role labeling system that makes primary use of CCG-based features. Most previously developed systems are CFG-based and make extensive use of a treepath feat...