1. A computer implemented method for reducing ambiguities in entity name spotting, comprising: performing an entity name spotting process in a data corpus; identifying, based on said entity name spotting process, an ambiguous entity name, said ambiguous entity name comprising an entity name corresponding to at least two potentially matching categorical nodes of an activation network, said activation network comprising a plurality of predefined categorical nodes; determining an activation level for each of said potentially matching categorical nodes; selecting a most activated categorical node of said potentially matching categorical nodes, said most activated categorical node having a highest activation level of each potentially matching categorical node; and outputting said most activated categorical node to a user to replace said ambiguous entity name.