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AMITIES Progress Report. Consortium Meeting 2/3 May 2002 University of Sheffield. Overview. Demonstrator Natural Language Understanding GALAXY Issues Corpus Transcription Issues. Demonstrator. Bilateral Sheffield/SUNY Base Dialogue Manager Generation Module PGDBS Missing NLU.

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amities progress report

AMITIES Progress Report

Consortium Meeting

2/3 May 2002

University of Sheffield

overview
Overview
  • Demonstrator
    • Natural Language Understanding
    • GALAXY Issues
  • Corpus
    • Transcription Issues
demonstrator
Demonstrator
  • Bilateral Sheffield/SUNY
    • Base Dialogue Manager
    • Generation Module
    • PGDBS
  • Missing NLU
natural language understanding
Natural Language Understanding
  • Extracting ‘semantic’ information
    • Names
    • Locations
    • Dates
    • Account numbers
  • Information Extraction
gate for amities
GATE for AMITIES
  • ANNIE
    • A Nearly New Information Extraction system
    • Finite state transducer (FASTUS)
    • Series of ‘grammars’ which look for objects
    • Developed largely for prose (MUC)
annie grammars
ANNIE grammars
  • ACE
    • Automatic Content Extraction
    • Includes extraction on such media as:
      • ASR
      • OCR
  • Adapting Sheffield ACE grammars
adapting ace grammars
Adapting ACE Grammars
  • Remove orthographic information
    • Case
    • Punctuation
    • Diacritics
  • Generate Multilingual Capability
    • Separate grammars for French, German
galaxy issues
GALAXY Issues
  • Address multilinguality within GALAXY
    • Character encoding
  • Relationship between GATE and GALAXY
    • Embed GALAXY API within GATE – a specific linguistic resource for creating GALAXY servers
nlu todo
NLU todo
  • Adapt ANNIE grammars for poor ASR output
  • Acquire high quality French/German resources (POS taggers…)
  • Learning information from corpus
corpus
Corpus
  • Working closely with GE CRD and GESC Leeds
  • Iteratively improving transcription performance
  • Dealing with complex cases, to prepare corpus for eventual public release
corpus analysis
Corpus Analysis
  • First cut break down of corpus content
    • Automatic call classification algorithm
  • First cut utterance classification using DAMSL dialogue act set
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