Abstract: A multimedia database is queried using an iterative step in which, at the current iteration, a portion retrieved from the database is determined using an ordered set of query criteria worked out at the previous iteration or at a previous initialization step if the current iteration is the first iteration, and using a criteria vector comprising characteristic values of a predetermined set of query criteria for the portion retrieved from the database. The criteria vector is initialized at the initialization step if the current iteration is the first iteration, and determined during the previous iteration otherwise.

Abstract: A method of thematically classifying documents, in particular for making up or updating thematic databases (42) for a search engine, includes the steps of selecting documents representative of each theme, identifying within the selected documents, elements that are characteristic of each theme, allocating a coefficient (R) to each identified element, said coefficient being representative of the relevance of said element relative to the corresponding theme, and for each document (50) for classification, identifying said elements characteristic of each theme contained in the document and, for each theme corresponding thereto, using the coefficients allocated to said elements to calculate the value of a characteristic representative of the relevance of the theme for the document (50), in order to decide whether or not the document relates to the theme.

Abstract: Method for querying a multimedia database from a telecommunication terminal. The database is queried using an iterative step in which, at the current iteration, a portion retrieved from the database is determined using an ordered set of query criteria worked out at the previous iteration or at a previous initialization step if the current iteration is the first iteration, and using a criteria vector comprising characteristic values of a predetermined set of query criteria for the portion retrieved from the database. The criteria vector is initialized at the initialization step if the current iteration is the first iteration, and determined during the previous iteration otherwise. The query criteria are determined so as to reduce the number of responses supplied at successive iterations respectively.

Abstract: In order to navigate in interactive voice services (PSV) implemented on a platform and accessible from a user terminal (TU) and executed in a first language in an interactive voice server (SVI), e.g., VXML, the voice services include identifiers of other voice services or of portions thereof, which in turn include returns to the voice services. In the platform (PSV) the description of a voice service from an administrator terminal (TA) is written in a high-level language of the invention which is converted into the first language during the service call so as to be executed in the voice server. Thus, the invention networks voice services while facilitating publishing thereof.