10. The system of claim 9 , wherein the computer is to automatically transcribe each of the plurality of the interactions into a plurality of textual transcripts based on the initial language model.
9. A system for adapting a language model to a specific environment, the system comprising: a memory; a recorder to capture a plurality of interactions in the specific environment; and a computer: to retrieve a plurality of external documents based on a plurality of query expressions, wherein query expressions are generated by applying a topic detection algorithm on textual transcripts in order to detect the different topics discussed in the plurality of interactions, to generate an external corpus by selecting a plurality of documents from the documents retrieved, to detect in the external corpus terms related to the environment that are not included in an initial language model, and to adapt the initial language model to include a plurality of the terms detected.