2. The method of claim 1 , wherein at least a subset of said user dependant language models is stored locally in a user device and synchronised with user dependant language models stored in a pervasive platform.
2. The method of claim 1 , wherein at least a subset of said user dependant language models is stored locally in a user device and synchronised with user dependant language models stored in a pervasive platform. 3. The method of claim 2 , further comprising a step of performing speech recognition in said user device using said locally stored user dependant language models, wherein said aspect of a service is personalized using said centrally stored user dependant language models.