22. A system for user-controlled multi-dimensional navigation in multimedia data, comprising: a topological navigation map comprising a multiplicity of selectable node elements, a node element comprising one or more search terms or weighting terms that can be logically combined; wherein distances within the navigation map are determined in dependence on relevance index parameters on the basis of one- or multi-dimensional distance factors, the absolute value of the corresponding distance factor becoming smaller with increasing relevance of two paired multimedia data elements with respect to one another; and a topological input device by which the topological navigation map is navigable for the user and at least one of the required multimedia data elements and node elements are accessible, wherein for navigation in the topological navigation map by the user, at least one of required node elements and multimedia data elements and produced clusters of node elements are selected by the input device and the topological navigation map is corrected in a perspective of at least three-dimensions on the basis of the selection and newly displayed, the topological navigation map displays a dynamic and moveable at least three-dimensional perspective for user navigation therethrough in order to respond in real-time by displaying changes in the distance factors of the relevance index parameters indicative of changes in said relevance of two paired multimedia data elements with respect to one another, the topological navigation map is navigable through use of an input device to permit user access to at least one of desired multimedia data elements and node elements.
22. A system for user-controlled multi-dimensional navigation in multimedia data, comprising: a topological navigation map comprising a multiplicity of selectable node elements, a node element comprising one or more search terms or weighting terms that can be logically combined; wherein distances within the navigation map are determined in dependence on relevance index parameters on the basis of one- or multi-dimensional distance factors, the absolute value of the corresponding distance factor becoming smaller with increasing relevance of two paired multimedia data elements with respect to one another; and a topological input device by which the topological navigation map is navigable for the user and at least one of the required multimedia data elements and node elements are accessible, wherein for navigation in the topological navigation map by the user, at least one of required node elements and multimedia data elements and produced clusters of node elements are selected by the input device and the topological navigation map is corrected in a perspective of at least three-dimensions on the basis of the selection and newly displayed, the topological navigation map displays a dynamic and moveable at least three-dimensional perspective for user navigation therethrough in order to respond in real-time by displaying changes in the distance factors of the relevance index parameters indicative of changes in said relevance of two paired multimedia data elements with respect to one another, the topological navigation map is navigable through use of an input device to permit user access to at least one of desired multimedia data elements and node elements. 26. The system as claimed in claim 22 , wherein at least one of the relevance index parameters and distance factors are determined dynamically on the basis of the selection of one of a node element or multimedia data element.