Practical HPSG-based Japanese Grammar
Final Goal
Approach to Final Grammar
Underspecified Japanese Grammar: SLUNG
Current status of SLUNG
Clustering Result [Torisawa]
Demo
Outline
Design Policy for SLUNG: Underspecification
Characteristics of Japanese
(Ex.) Japanese Sentence
Lexicon: Lexical Entry Template (LET)
LET: Example
Lexicon
Rule Schemata
Rule schemata: Example
Head-Complement Schema
Head-Relative Schema
(Ex.) Sentence with Relative Clause
# of Types & Features
Experimental Results
Experimental Results: Coverage
Experimental Results: Profiles of Parsing
Experimental Results: Time with the TNT Parser
Experimental Results: CFG generated by the TNT Compiler
Experimental Results: Time and Memory in Compiling and Loading
Disambiguation Techniques on SLUNG
Parsing Heuristics
Parsing Heuristics: (Ex.) Postposition ‘wa’
Parsing Heuristics: (Ex.) Wa-Heuristics
Probabilistic Model (1/2) [Kanayama]
Probabilistic Model (2/2): Calculating Probability
Experimental results: accuracy
Experimental results: Comparison (accuracy)
Conclusion
Future Work
Email : mitsuisi@is.s.u-tokyo.ac.jp