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A syntactic component for Vietnamese language processing

Le-Hong P., Roussanaly A., Nguyen T. M. H.

Journal of Language Modelling

2015

Vol. 3, No. 1

145--184

This paper presents the development of a grammar and a syntactic parser for the Vietnamese language. We first discuss the construction of a lexicalized tree-adjoining grammar using an automatic extraction approach. We then present the construction and evaluation of a deep syntactic parser based on the extracted grammar. This is a complete system that produces syntactic structures for Vietnamese sentences. A dependency annotation scheme for Vietnamese and an algorithm for extracting dependency structures from derivation trees are also proposed. This is the first Vietnamese parsing system capable of producing both constituency and dependency analyses. It offers encouraging performance: accuracy of 69.33% and 73.21% for constituency and dependency analysis, respectively.

TuLiPA - Parsing extensions of TAG with range concatenation grammars

Kallmeyer L., Maier W., Parmentier Y., Dellert J.

Bulletin of the Polish Academy of Sciences. Technical Sciences

2010

Vol. 58, nr 3

377-391

In this paper we present a parsing framework for extensions of Tree Adjoining Grammar (TAG) called TuLiPA (T¨ubingen Linguistic Parsing Architecture). In particular, besides TAG, the parser can process Tree-Tuple MCTAG with Shared Nodes (TT-MCTAG), a TAGextension which has been proposed to deal with scrambling in free word order languages such as German. The central strategy of the parser is such that the incoming TT-MCTAG (or TAG) is transformed into an equivalent Range Concatenation Grammar (RCG) which, in turn, is then used for parsing. The RCG parser is an incremental Earley-style chart parser. In addition to the syntactic anlysis, TuLiPA computes also an underspecified semantic analysis for grammars that are equipped with semantic representations.