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This study aims to identify dependency structures in Korean sentences with the cascaded chunking. In the first stage of the cascade, we find chunks of NP and guess grammatical relations (GRs) using Support Vector Machine (SVM) classifiers for all possible modifier-head pairs of chunks in terms of GR categories as subject, object, complement, adverbial, etc. In the next stages, we filter out incorrect modifier-head relations in each cascade for its corresponding GR using the SVM classifiers and the characteristics of the Korean language such as distance between relations, no-crossing and case property. Through an experiment with a parsed and GR tagged corpus for training the proposed parser, we achieved an overall accuracy of 85.7%.Key Words:Parsing, Dependency Structure, Grammatical Relation, Support Vector Machines 1.   1) -         ,  ,              [1, 2, 3].           .  ‘     ?’ ,   ‘       ?’ .           , [4]      ,      ,             . [5]

Cascaded Parsing Korean Sentences Using Grammatical Relations