Báo cáo khoa học: "Towards Open-Domain Semantic Role Labeling" doc

... train reasonable good semantic classifiers. The com- parison between Line 5 and 7 suggests that with parsing errors, automatic parsed syntactic features cause noise to the semantic role classifiers. 4.4 ... also give some pre- liminary linguistic explanations. 1 Introduction Previous work on Chinese Semantic Role La- beling (SRL) mainly focused on how to imple- ment SRL methods which...

Ngày tải lên: 20/02/2014, 04:20

... sen- tence we wish to annotate. Semantic role labeler We evaluated our method on a semantic role labeling task. Specifically, we compared the performance of a generic seman- tic role labeler trained on ... element). Predicates with similar semantics instantiate the same frame and are attested with the same roles. In our exam- ple, the frame Cause harm has three core semantic roles,...

Ngày tải lên: 08/03/2014, 21:20

... simultaneous incremental parsing and semantic role labeling may lead to performance gains in both tasks. 1 Introduction Semantic Role Labeling (SRL) is the process of assign- ing semantic roles to strings of ... predicate semantic role information that is widely used in the SRL litera- ture (M ` arquez et al., 2008). Rather than describe se- mantic roles in terms of “agent” or “...

Ngày tải lên: 17/03/2014, 01:20

... word contexts. The original idea of LSA and LDA is to learn “top- ics” from documents, whereas in our scenario word contexts rather than documents are used, i.e., a small number of words before and after ... diachronic development of word senses in a way that allows for a better under- standing of the nature of semantic change in general. For this purpose we combine tech- niques from the fie...

Ngày tải lên: 20/02/2014, 05:20

... lexi- cal semantic classes based on their subcategorisa- tion frames. We adopt the idea that a description of verbs in terms of their syntactic behaviour is useful for acquiring their semantic ... UK E.Esteve-Ferrer@sussex.ac.uk Abstract We present experiments aiming at an automatic classification of Spanish verbs into lexical semantic classes. We apply well-known techniques that have be...

Ngày tải lên: 08/03/2014, 04:22

... for semantic parsing, such as PropBank and FrameNet, are not perfect as a semantic role label- ing framework. Their semantic roles are not strictly defined; therefore, their mean- ings and semantic ... cer- tain semantic roles. Packing such complex infor- mation to semantic roles is useful for analyzing argument realization. However, from the view- point of semantic representat...

Ngày tải lên: 24/03/2014, 03:20

... often 522 necessary to look for a semantic relation between sisters, i.e. hyponyms of the same hypernym, such as home the house. An automatic search for a semantic relation in 5481 possible ... the poor results: anchors and descriptions are often linked by other means than direct lexico -semantic rela- tions. According to different anchor/link types and their processing requir...

Ngày tải lên: 08/03/2014, 21:20

... for other exemplars where the unknown word Is used in different semantic contexts. Each time the new word Is encountered, the semantic constraints are integrated with the previous partial definition ... relax Its violated semantic constraints until a new, yet more general definition Is formed. 5) If the case frame formulated in interpreting a sentence projects more specific sema...

Ngày tải lên: 31/03/2014, 17:20

... 1985. Frames and the semantics of understanding. Quaderni di Semantica, 4(2):222– 254. Hagen F ¨ urstenau and Mirella Lapata. 2009. Graph alignment for semi-supervised semantic role label- ing. In ... bank: A corpus annotated with semantic roles. Computational Linguistics, 31(1), March. Sameer S. Pradhan, Wayne Ward, and James H. Mar- tin. 2008. Towards robust semantic role labeling...

Ngày tải lên: 30/03/2014, 21:20

... and Rosenzweig, 2000). Annotation of frame semantic roles compounds the problem as it combines word sense assignment with the assign- ment of semantic roles, a task that introduces vague- ness ... would be desirable. FrameNet as a resource for semantic role an- notation. Above, we have asked about the suitabil- ity of FrameNet for semantic role annotation, and our data allow a firs...

Ngày tải lên: 17/03/2014, 06:20