NorSource

1
NorSource
The Norwegian HPSG Resource Grammar
presented at Språkteknologiske Ressurser ved
NTNU Trondheim 10.01.2003
2
NorSource Members

• Local members
• Lars Hellan
• Dorothee Beermann
• Kaja Borthen
• Petter Haugereid
• Siri Simonsen
• Jostein Ven
• External members
• Stephan Oepen, Stanford University, California
• Dan Flickinger, Stanford University, California
  

3
The NorSource Group
4
The Project Context
5
The HPSG Grammar Network
6
LKB - the platform

• The LKB system open source software
• The LKB system is a grammar and lexicon
  development environment for use with
  constraint-based linguistic formalisms. The LKB
  software is distributed by the LinGO initiative,
  a loosely-organized consortium of research groups
  working on unification-based grammars and
  processing schemes. The download page for the LKB
  system and other available LinGO software and
  grammars is http//lingo.stanford.edu/ftp.

7
Documentation

• Books
• Implementing Typed Feature Structure Grammars
• Ann Copestake, CSLI publications, 2002
• Selected Manuscripts
• Ann Copestake, Dan Flickinger, Ivan Sag and Carl
  Pollard,
• Minimal Recursion Semantics, draft, 1999.
• Ann Copestake, Alex Lascarides and Dan
  Flickinger, 2001. An Algebra for
• Semantic Construction in Constraint-based
  Grammars
• In Proceedings of the 39th Annual Meeting of the
  Association for
• Computational Linguistics (ACL 2001), Toulouse,
  France

8
ERG - state of the art

• Demonstration
• The picture was admired by the girl in the museum
• Parsing
• Tree banking
• John smiles
• MRS Minimal Recursion Semantics
• John goes to the theater
• Generation

9
Example of phrase structure schema as stated in a
source file

• basic-head-comp-phrase head-valence-phrase
  head-compositional binary-headed-phrase
  SYNSEM canonical-synsem LOCAL CAT
  MC mc, VAL SUBJ subj, COMPS
  comps, SPR spr , POSTHEAD ph ,
  KEYS ALTKEY altkey, MESSAGE hmsg
  , LEX lex , HEAD-DTR.SYNSEM LOCAL
  CAT MC mc, VAL SUBJ subj,
  COMPS lt synsem . comps gt, SPR spr
  , POSTHEAD ph , KEYS ALTKEY
  altkey, MESSAGE hmsg , LEX
  lex , NON-HEAD-DTR.SYNSEM synsem
  canonical-synsem, C-CONT LISZT lt! !gt,
  H-CONS lt! !gt .

10
Edited Feature-Structure display

• Beundre
•  
•  

11
NorSource functionality

• Diagnostic and disambiguation tool
• Incr tsdb () package version 1.9
  oe_at_coli.uni-sb.de
• Test suite 246 items 140 parses
• Demonstration
• Kari gir ham ikke isen
• Parsing
• Generation
• Informasjon om småviltjagd på statsgrunn i
  Finnmark fås ved
• henvendelse til postkontorene
• Tree-banking

12
Other Projects

• Financed Projects
• LOGON -
• Not yet funded
• NorDeTrans
• Norwegian- German Translation Project

13
LOGON
is a cooperation project between groups at the
universities in Oslo, Bergen and Trondheim, one
aim of which is the development of a machine
translation demonstrator for Norwegian-to-English,
using the frameworks LFG and HPSG in the 'deep
processing' aspects. The project period is Jan 03
to Dec 06.  
 
 
 
 
14
More about us
Do you want to learn the LKB?  Introduction to
HPSG, and Grammar Engineering using
HPSG, Dorothee Beermann and Petter
Haugereid   Starts January 14, as HFLING203
Place Dragvoll, Building 4, LinLab Time
Tuesday 1015 1200 Wednsday 1415
1600  Be up-dated about NorSource
! http//www.ling.hf.ntnu.no/forskning/norsource/