TY  - INPR
A1  - Kübler, Sandra
A2  - Angelova, Galia
A2  - Bontcheva, Kalina
A2  - Mitkov, Ruslan
A2  - Nicolov, Nicolas
A2  - Nikolov, Nikolai
T1  - How do treebank annotation schemes influence parsing results? : or how not to compare apples and oranges
N2  - In the last decade, the Penn treebank has become the standard data set for evaluating parsers. The fact that most parsers are solely evaluated on this specific data set leaves the question unanswered how much these results depend on the annotation scheme of the treebank. In this paper, we will investigate the influence which different decisions in the annotation schemes of treebanks have on parsing. The investigation uses the comparison of similar treebanks of German, NEGRA and TüBa-D/Z, which are subsequently modified to allow a comparison of the differences. The results show that deleted unary nodes and a flat phrase structure have a negative influence on parsing quality while a flat clause structure has a positive influence.
Y1  - 2005
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/9630
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30-1110588
UR  - http://cl.indiana.edu/~skuebler/papers/treebanks.pdf
SN  - 954-91743-3-6
N1  - Erschienen in: Galia Angelova ; Kalina Bontcheva ; Ruslan Mitkov ; Nicolas Nicolov ; Nikolai Nikolov (Hrsg.): International conference recent advances in natural language processing : proceedings, Borovets, Bulgaria, 21-23 September 2005, Shoumen : Incoma, 2005, S. 293-300, ISBN: 954-91743-3-6
ER  -