The Parallel Grammar project

Abstract

We report on the Parallel Grammar (ParGram) project which uses the XLE parser and grammar development platform for six languages: English,

79. Electronic dictionaries for question answering and natural language database access

“…Wide-coverage LFG grammars for several languages have been developed within the Parallel Grammar (ParGram) project (Butt et al 2002), which uses the XLE (Xerox Linguistic Environment) platform, a grammar development and parsing system for LFGs. Bobrow et al (2007) describe an application of the XLE system to answer validation in QA, which uses the LFG parser and several post-processing steps to generate concept-based logical forms.…”

Robuste Auszeichnung Grammatischer Funktionen

“…B. Bresnan 2001, Butt et al 1999, die in Form des ParGram-Projekts (Butt et al 2002), aber auch durch die Grammatikentwicklungsumgebung XLE (Kaplan et al 2002) in der Computerlinguistik spürbar prä-sent ist. Die Strukturbeschreibung von Sätzen mittels funktionaler Information ist aber nicht Selbstzweck, sondern dient Ϫ in einem SyntaxFirst-Modell Ϫ als Vorstufe der semantischen Analyse (vgl.…”

“…Das hier vorgestellte Verfahren ist flach, d. h. es wird keine vollständige Syntaxanalyse etwa anhand einer Phrasenstrukturgrammatik durchgeführt. Große Grammatiken für das Deutsche sind zwar mittlerweile vorhanden, etwa für die LFG (Butt et al 2002), oder aber in Form sogenannter Treebank-Grammatiken, d. h. automatisch aus Baumbanken extrahierte probabilistische kontextfreie Grammatiken (PCFG, vgl. z.…”

Treebank-Based Acquisition of Multilingual Unification Grammar Resources

“…The LFG architecture has been designed to cater for typologically different languages 3 and is particularly attractive for multilingual grammar development as the level of f-structure representation abstracts away from certain (but not all 4 ) aspects of language-specific surface realisation (Butt et al, 1999). At the same time LFG provides a precise, flexible, computationally tractable and non-transformational interface between c-structure and f-structure representation for both parsing and generation (Butt et al, 2002). Furthermore, LFG has enjoyed a substantial body of earlier work on automatic f-structure annotation architectures summarised in Frank et al (2003).…”

“…The PARC 700 is constructed from the f-structures developed in the ParGram project (Butt et al, 2002. There are a number of systematic differences between the ParGram and our automatically induced f-structures as regards the feature inventory, feature names, feature geometry and the treatment of named entities.…”