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CLT seminar: Normunds Grūzītis - Extracting a multilingual semantic grammar from FrameNet-annotated corpora

SEMINAR

The use of lexical resources that describe the possible mappings between syntax and semantics of natural language sentences has been in the focus for a range of NLP tasks such as semantic parsing, information extraction, natural language generation and hybrid MT. A widely used resource of this kind is Berkeley FrameNet (BFN), which separates between the language-independent semantic frames and frame elements, and their language-specific realization.

Following the BFN approach, there are framenets developed also for German, Swedish, Spanish, Japanese and other languages. These framenets share, to a large extent, the same interlingua (the set of frames and frame elements), but otherwise they are not unified. Each framenet uses not only its own annotation format but also grammatical types and functions, and identifiers of lexical units.

This presentation shows the first results of an ongoing research that aims at designing and extracting an abstract syntax of a multilingual FrameNet-based grammar, and at generating the corresponding concrete syntaxes.

The grammar is being implemented in Grammatical Framework (GF) – a formalism and a resource grammar library (RGL) for implementing parallel grammars. The GF RGL provides a shared syntactic API that is implemented for nearly 30 languages and that can be used for generalizing the grammatical types and functions of different framenets. The FrameNet-based grammar, in turn, proposes a frame semantic abstraction layer to GF RGL.

Date: 2014-02-13 10:30 - 11:30

Location: L308, Lennart Torstenssonsgatan 8

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Page updated: 2014-02-07 19:08

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