3. Method according to claim 1 , wherein a relationship value for two strings is based, at least in part, on comparing a frequency distribution of one of the two strings in a text source having a known semantic relation to the other string of the two strings, with a global frequency distribution of the one of the two strings in a general text corpus.
1. Method for facilitating the selection of an information source from a plurality of information sources, comprising: providing two search strings to an electronic device; obtaining, by the electronic device, strings and relationship values, wherein each relationship value defines a degree of semantic relationship between two strings or a string and a search string and wherein at least some of the strings match with elements in the information sources; and displaying, by the electronic device, at least some of the matching strings on a two-dimensional map; wherein the map comprises a first, a second and a third region, the first region comprising matching strings that have a non-zero relationship value only with regard to the first search string, the second region comprising matching strings that have a non-zero relationship value only with regard to the second search string and the third region comprising matching strings that have non-zero relationship values with regard to the first and the second search string, wherein the map has the shape of a rectangle and the first, second and third regions are divided by two lines which are parallel to a first side of the rectangle and wherein the first, second and third regions are divided into six sub-regions by a further line which is parallel to a second side of the rectangle and wherein a matching string is placed at one side of the further line or at another side of the further line, depending on a property of the matching string.