Disclosed is a semantic network consisting of a plurality of units, wherein the semantic network comprises semantic units having a relational content and associative units describing a relational content and associating two semantic units in such a way that mutual relationship between the associated semantic units is determined by the relational content. At least some semantic units in said network are special semantic Janus units which are also associated with other semantic units by associative units. Furthermore, said semantic Janus units can carry out operations within themselves, in the semantic units with which they are associated and/or in those units with which they are directly or indirectly associated and/or in the associative units of said semantic units. Said semantic Janus units have states that are variable in time that determine which operations should be carried out in which semantic units and/or associative units.
