Linguistik
Refine
Year of publication
Document Type
- Article (45)
- Working Paper (8)
- Part of a Book (7)
- Review (6)
- Conference Proceeding (5)
Keywords
- Deutsch (71) (remove)
Institute
- Análise da macro e da microestrutura de dicionários bilíngues português-alemão / alemão-português (2010)
- O ensino/aprendizagem da metafonia do português como língua estrangeira por aprendizes alemães (2009)
-
Parsing coordinations
(2009)
- The present paper is concerned with statistical parsing of constituent structures in German. The paper presents four experiments that aim at improving parsing performance of coordinate structure: 1) reranking the n-best parses of a PCFG parser, 2) enriching the input to a PCFG parser by gold scopes for any conjunct, 3) reranking the parser output for all possible scopes for conjuncts that are permissible with regard to clause structure. Experiment 4 reranks a combination of parses from experiments 1 and 3. The experiments presented show that n- best parsing combined with reranking improves results by a large margin. Providing the parser with different scope possibilities and reranking the resulting parses results in an increase in F-score from 69.76 for the baseline to 74.69. While the F-score is similar to the one of the first experiment (n-best parsing and reranking), the first experiment results in higher recall (75.48% vs. 73.69%) and the third one in higher precision (75.43% vs. 73.26%). Combining the two methods results in the best result with an F-score of 76.69.
