The Prague Dependency Treebank: Crossing the Sentence Boundary
TSD '99 Proceedings of the Second International Workshop on Text, Speech and Dialogue
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ANLC '97 Proceedings of the fifth conference on Applied natural language processing
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Segmentation of complex sentences
TSD'06 Proceedings of the 9th international conference on Text, Speech and Dialogue
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Language Resources and Evaluation
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The paper concentrates on deriving non-obvious information about clause structure of complex sentences from the Prague Dependency Treebank. Individual clauses and their mutual relationship are not explicitly annotated in the treebank, therefore it was necessary to develop an automatic method transforming the original annotation concentrating on the syntactic role of individual word forms into a scheme describing the relationship between individual clauses. The task is complicated by a certain degree of inconsistency in original annotation with regard to clauses and their structure. The paper describes the method of deriving clause-related information from the existing annotation and its evaluation.