16. An apparatus for automatic provision of an overall semantic similarity score value among a plurality of named entities comprising: a first calculation device calculating, for each pair in at least a selection of pairs of the named entities, a pair semantic similarity score value according to a classifier using an electronic information source; a second calculation device calculating, for each of the pairs in the selection of pairs of the named entities, a further pair semantic similarity score value according to a further classifier using the electronic information source; and a third calculation device calculating, for each of the pairs in the selection of the named entities an overall semantic similarity score value as a first function of the pair semantic similarity score value and the further pair semantic similarity score value corresponding thereto.
16. An apparatus for automatic provision of an overall semantic similarity score value among a plurality of named entities comprising: a first calculation device calculating, for each pair in at least a selection of pairs of the named entities, a pair semantic similarity score value according to a classifier using an electronic information source; a second calculation device calculating, for each of the pairs in the selection of pairs of the named entities, a further pair semantic similarity score value according to a further classifier using the electronic information source; and a third calculation device calculating, for each of the pairs in the selection of the named entities an overall semantic similarity score value as a first function of the pair semantic similarity score value and the further pair semantic similarity score value corresponding thereto. 17. The apparatus according to claim 16 , wherein the named entities are organized in a tree structure, and wherein said first calculation device calculates the pair semantic similarity score value as a second function of a respective shortest path from a root of the tree structure to a node representing a respective named entity in the tree structure.