Time-dependent semiotic model for computer coding of concepts, information objects, and denotata

The time-dependent semiotic model, which has been developed during research of problems of generation and evolution of goal-oriented knowledge systems in digital libraries and other kinds of information systems, is considered. These problems concern to the new direction of the researches, which have been named “Cognitive Informatics”. This model is positioned as theoretical foundations for computer coding of concepts, information objects, and denotata in view of their evolution in time.