Dr. K. Hirata, NTT, Japan

Lecture
                                VORTRAG
                                *******

Oesterreichisches Forschungsinstitut fuer Artificial Intelligence(OeFAI)
                      Schottengasse 3, A-1010 Wien
 Tel.: +43-1-53361120,  Fax: +43-1-5336112-77,  Email: sec@oefai.at
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Dr. Keiji Hirata
NTT Communication Science Laboratories, Japan


         INTERACTIVE MUSIC SUMMARIZATION SYSTEM BASED ON GTTM

  My talk presents a music summarization system called "Papipuun." 
  Papipuun performs quick listening in a manner similar to a stylus 
  skipping on a scratched record, but the skipping occurs correctly 
  at punctuations of musical phrases, not arbitrarily. 

  First, I would mention a method for representing polyphony based 
  on time-span reduction in the generative theory of tonal music 
  (GTTM) and the deductive object-oriented database (DOOD). The 
  operation, least upper bound, plays an important role in similarity 
  checking of polyphonies represented in our method. Next, I would 
  talk on the system operation of Papipuun. In a preprocessing phase 
  of Papipuun, a user analyzes a set piece by the time-span reduction, 
  using a dedicated tool, called TS-Editor.

  For a real-time phase, the user interacts with the main system, 
  Summarizer, to perform music summarization. Summarizer discovers a 
  piece structure by similarity checking. When the user identifies the 
  fragments to be skipped, Summarizer deletes them and concatenates 
  the rest. Papipuun can produce the music summarization of good 
  quality, reflecting the atmosphere of an entire piece through 
  interaction with the user. I will demonstrate Papipuun during my 
  presentation.

Zeit:   Dienstag, 22. Oktober 2002, 18:00 Uhr pktl.

Ort:    Institut für Medizinische Kybernetik und 
        Artificial Intelligence (IMKAI)
        Freyung 6, Stiege 2, 2. Stock, 1010 Wien


OESTERREICHISCHES FORSCHUNGSINSTITUT
FUER ARTIFICIAL INTELLIGENCE


o.Univ.-Prof. Ing. Dr. Robert Trappl