Data Set Used
The grammar matrix is an open-source starter-kit for the development of broad-coverage HPSGs. By using a type hierarchy to represent cross-linguistic generalizations and providing compatibility with other open-source tools for grammar engineering, evaluation, parsing and generation, it facilitates not only quick start-up but also rapid growth towards the… (More)
The LinGO Redwoods initiative is a seed activity in the design and development of a new type of treebank. A treebank is a (typically hand-built) collection of natural language utterances and associated linguistic analyses; typical treebanks—as for example the widely recognized Penn—assign syntactic phrase structure or tectogrammatical dependency trees over… (More)
We define broad-coverage semantic dependency parsing (SDP) as the task of recovering sentence-internal predicate–argument relationships for all content words, i.e. the semantic structure constituting the rela-tional core of sentence meaning. Syntactic dependency parsing has seen great advances in the past decade, in part owing to relatively broad consensus… (More)
The growing la.ngua<gc l.echnology indusl;ry n(!eds suit;al)ilil;y for <t variety of ~tl)l)licalions.
This paper addresses two questions: (1) when a large deep processing resource developed for relatively closed domains is run over open text, what coverage does it have, and (2) what are the most effective and time-efficient ways of consolidating gaps in the coverage of such as resource?
We give a detailed account of an algorithm for efficient tactical generation from underspecified logical-form semantics, using a wide-coverage grammar and a corpus of real-world target utterances. Some earlier claims about chart realization are critically reviewed and corrected in the light of a series of practical experiments. As well as a set of… (More)
We present a tutorial system for language learners , using a computational grammar augmented with mal-rules for analysis, error diagnosis, and semantics-centered generation of corrected forms. Corrections are produced using a novel strategy of aligned generation.
We describe a novel approach to 'packing' of local ambiguity in parsing with a wide-coverage HPSG grammar , and provide an empirical assessment of the interaction between various packing and parsing strategies. We present a linear-time, bidirectional subsumption test for typed feature structures and demonstrate that (a) subsumption-and equivalence-based… (More)