TY - GEN
T1 - Joint evaluation of morphological segmentation and syntactic parsing
AU - Tsarfaty, Reut
AU - Nivre, Joakim
AU - Andersson, Evelina
PY - 2012
Y1 - 2012
N2 - We present novel metrics for parse evaluation in joint segmentation and parsing scenarios where the gold sequence of terminals is not known in advance. The protocol uses distance-based metrics defined for the space of trees over lattices. Our metrics allow us to precisely quantify the performance gap between non-realistic parsing scenarios (assuming gold segmented and tagged input) and realistic ones (not assuming gold segmentation and tags). Our evaluation of segmentation and parsing for Modern Hebrew sheds new light on the performance of the best parsing systems to date in the different scenarios.
AB - We present novel metrics for parse evaluation in joint segmentation and parsing scenarios where the gold sequence of terminals is not known in advance. The protocol uses distance-based metrics defined for the space of trees over lattices. Our metrics allow us to precisely quantify the performance gap between non-realistic parsing scenarios (assuming gold segmented and tagged input) and realistic ones (not assuming gold segmentation and tags). Our evaluation of segmentation and parsing for Modern Hebrew sheds new light on the performance of the best parsing systems to date in the different scenarios.
UR - http://www.scopus.com/inward/record.url?scp=84878205901&partnerID=8YFLogxK
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AN - SCOPUS:84878205901
SN - 9781937284251
T3 - 50th Annual Meeting of the Association for Computational Linguistics, ACL 2012 - Proceedings of the Conference
SP - 6
EP - 10
BT - 50th Annual Meeting of the Association for Computational Linguistics, ACL 2012 - Proceedings of the Conference
T2 - 50th Annual Meeting of the Association for Computational Linguistics, ACL 2012
Y2 - 8 July 2012 through 14 July 2012
ER -