From: cshung@ust.hk   
      
   Dear all,   
      
       Hi, I am a newbie in this newsgroup, my name's Andrew Au. Nice to see   
   you all. I am recently studying in speech recognition. I am wondering can I   
   replace the Mahalanobis distance, used by the Gaussian density, by any other   
   norm, is it still a probability density, can it help by consider choosing   
   different metric...?   
      
     It seems that wasn't many post about probability model here, I am really   
   interested in those method for knowledge representation. For example,   
   Bayesian Network, Hidden Markov Model, Kalman Filter as so on. Are there any   
   newsgroup talk about all these... ?   
      
   Thanks for reading my message.   
      
   Andrew Au   
      
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