[IEEE International Conference on Computational Intelligence for Modelling, Control and Automation and International Conference on Intelligent Agents, Web Technologies and Internet Commerce (CIMCA-IAWTIC'06) - Vienna, Austria (28-30 Nov. 2005)] International Conference on Computational Intelligence for Modelling, Control and Automation and International Conference on Intelligent Agents, Web Technologies and Internet Commerce (CIMCA-IAWTIC'06) - The Role of Semantic Tools for the Construction of Subjective Meaning in Multi-agents Communication Systems