The logic of typed feature structures
The logic of typed feature structures
Computational Linguistics
LiLFeS: towards a practical HPSG parser
COLING '98 Proceedings of the 17th international conference on Computational linguistics - Volume 2
Computing phrasal-signs in HPSG prior to parsing
COLING '96 Proceedings of the 16th conference on Computational linguistics - Volume 2
LIGHT - A Constraint Language and Compiler System for Typed-Unification Grammars
KI '02 Proceedings of the 25th Annual German Conference on AI: Advances in Artificial Intelligence
Making Semantic Interpretation Parser-Independent
AMTA '98 Proceedings of the Third Conference of the Association for Machine Translation in the Americas on Machine Translation and the Information Soup
The LiLFeS Abstract Machine and its evaluation with the LinGO grammar
Natural Language Engineering
An HPSG parser with CFG filtering
Natural Language Engineering
LiLFeS: towards a practical HPSG parser
COLING '98 Proceedings of the 17th international conference on Computational linguistics - Volume 2
An efficient Parallel Substrate for Typed Feature Structures on shared memory parallel machines
COLING '98 Proceedings of the 17th international conference on Computational linguistics - Volume 2
A hybrid Japanese parser with hand-crafted grammar and statistics
COLING '00 Proceedings of the 18th conference on Computational linguistics - Volume 1
Integrating shallow linguistic processing into a unification: based Spanish grammar
COLING '02 Proceedings of the 19th international conference on Computational linguistics - Volume 1
Generic NLP technologies: language, knowledge and information extraction
ACL '00 Proceedings of the 38th Annual Meeting on Association for Computational Linguistics
STAR '01 Proceedings of the ACL 2001 Workshop on Sharing Tools and Resources - Volume 15
On two classes of feature paths in large-scale unification grammars
New developments in parsing technology
Corpus-oriented development of Japanese HPSG parsers
ACLstudent '05 Proceedings of the ACL Student Research Workshop
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This paper describes a wide-coverage Japanese grammar based on HPSG. The aim of this work is to see the coverage and accuracy attainable using an underspecified grammar. Underspecification, allowed in a typed feature structure formalism, enables us to write down a wide-coverage grammar concisely. The grammar we have implemented consists of only 6 ID schemata, 68 lexical entries (assigned to functional words), and 63 lexical entry templates (assigned to parts of speech (POSs) ). Furthermore, word-specific constraints such as subcategorization of verbs are not fixed in the grammar. However, this grammar can generate parse trees for 87% of the 10000 sentences in the Japanese EDR corpus. The dependency accuracy is 78% when a parser uses the heuristic that every bunsetsu is attached to the nearest possible one.