1. A computer implemented method for interacting with a user via a speech-based user interface, comprising the steps of: acquiring spoken input from a user in a form of a phrase of one or more words; determining, using a plurality of different domains, whether the phrase is a query or a command; and retrieving and presenting relevant items from a plurality of databases if the phrase is the query; and otherwise performing an operation if the phrase is a command, and wherein all possible items form a set of items, and further comprising: grouping items in the set into subsets of items, in which each subset of items forms one of the plurality of domains; retrieving the items from one or more of the plurality of domains in response to the query; and selecting a particular domain as most relevant to the query if the retrieved items are least likely to have been obtained by random draw from the entire set of items.
1. A computer implemented method for interacting with a user via a speech-based user interface, comprising the steps of: acquiring spoken input from a user in a form of a phrase of one or more words; determining, using a plurality of different domains, whether the phrase is a query or a command; and retrieving and presenting relevant items from a plurality of databases if the phrase is the query; and otherwise performing an operation if the phrase is a command, and wherein all possible items form a set of items, and further comprising: grouping items in the set into subsets of items, in which each subset of items forms one of the plurality of domains; retrieving the items from one or more of the plurality of domains in response to the query; and selecting a particular domain as most relevant to the query if the retrieved items are least likely to have been obtained by random draw from the entire set of items. 6. The method of claim 1 , in which the relevant items coming led in a combined result list.