Please note that these pages are no longer up-to-date. The activities are now carried on in the HLT research unit (hlt.fbk.eu)
DITELO
DIalogo su TELefonO
We build speech recognizers for telephonic applications, with the main aim to include them in call-center systems (but not only). This means building acoustic and language models, and offering dialogue capabilities. 
At present we have a speech recognizer (have a look at the recording of a demo) with the following features: 
  • speaker independent (acoustic models are trained on several hundreds of speakers having good geographical coverage) 
  • Italian language 
  • continuous speech (no pauses between words) 
  • mixed initiative dialogue for limited domains (the user can provide information not explicitly asked by the system) 
  • recursive transition networks used to model the language (including bigrams, regular expressions, etc.)
  • We are presently working on:
    • barge-in capabilities (the user can speak during the vocal prompts)
    • dialogues on complex tasks (tourism)
    • verification / confidence scores for sentences and words
    • standard interfaces (C++ API, JavaSpeech) 
    • WEB access by voice (XML, VoxML languages) 
    • multimodal interaction 
     
    ITC links:
    ITC - Istituto Trentino di Cultura 
    ITCirst - Istituto per la Ricerca Scientifica e Tecnologica 
    SSI -Sistemi Sensoriali Interattivi 
    Other stuffs:
  • People involved in the project
  • Brief history of telephone speech recognition at ITCirst
  • Systems and applications:
  • Italy Direct - 170
  • Caritro
  • Dialogue
  • Collected speech databases:
  • PHONE
  • FIELD
  • Reports
  • Project management (internal use only)
  • Other projects concerning speech recognition at IRST
  • MUNST (MUltilingual Natural Speech Technology)
  • SHINE (SpeecH Interaction in Noisy Environment)
  • Tools
  • A morphological analyzer for the Italian language
  • TRAMORPH (morphological tool)
  • ILE (Italian LExicon), a 588,000 word lexicon
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    Last update march 2, 2000 
    Maintainer Roberto Gretter