Brief description of the selection of information by means of a knowledge base of reference, a search engine and systems for the implementation of this

摘要

System for selecting relevant information (18) from a collection of information (12) has means for generation of expanded requirements from initial requirements (16) with the help of a reference knowledge base (20) and means for selection of the relevant information as a function of the expanded requirements. The expanded requirements can be updated taking into account modifications to the reference knowledge base. The invention also relates to a corresponding search engine and a method for use with the inventive system.