4 research outputs found
Π‘ΡΡΡΠΊΡΡΡΠ° ΠΈ ΡΡΠ½ΠΊΡΠΈΠΈ ΡΠ΅ΠΏΠ»ΠΈΠΊΠ°ΡΠΈΠ²Π½ΠΎΠ³ΠΎ Π½Π΅ΠΉΡΠΎΠΏΠΎΠ΄ΠΎΠ±Π½ΠΎΠ³ΠΎ ΠΌΠΎΠ΄ΡΠ»Ρ
ΠΠΏΠΈΡΡΠ²Π°Π΅ΡΡΡ ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΡ ΠΏΠΎΡΡΡΠΎΠ΅Π½ΠΈΡ Π½Π΅ΠΉΡΠΎΡΠ΅ΡΠ΅Π²ΠΎΠΉ ΡΠΈΡΡΠ΅ΠΌΡ ΠΈΡΠΊΡΡΡΡΠ²Π΅Π½Π½ΠΎΠ³ΠΎ ΠΈΠ½ΡΠ΅Π»Π»Π΅ΠΊΡΠ° Π½Π° ΡΡΡΠΊΠ΅ Π΄Π΅ΠΊΠ»Π°ΡΠ°ΡΠΈΠ²Π½ΠΎΠ³ΠΎ ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΈ ΠΌΠ°ΡΠΈΠ½Π½ΠΎΠ³ΠΎ ΠΎΠ±ΡΡΠ΅Π½ΠΈΡ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΌΠΎΠ΄Π΅Π»ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΊΠΎΡΡΠΈΠΊΠ°Π»ΡΠ½ΡΡ
ΠΊΠΎΠ»ΠΎΠ½ΠΎΠΊ. ΠΡΠΏΠΎΠ»ΡΠ·ΡΡ Π΄ΠΎΡΡΡΠΏΠ½ΡΠΉ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π» ΠΈ ΡΡΠ°Π²Π½ΠΈΡΠ΅Π»ΡΠ½ΠΎ ΠΏΡΠΎΡΡΡΠ΅ ΡΠ²Π»Π΅Π½ΠΈΡ, ΡΠ²ΠΎΠ»ΡΡΠΈΠΎΠ½Π½ΡΠ΅ ΠΌΠ΅Ρ
Π°Π½ΠΈΠ·ΠΌΡ ΡΠΎΠ·Π΄Π°Π»ΠΈ ΡΠ»ΠΎΠΆΠ½ΠΎΠΎΡΠ³Π°Π½ΠΈΠ·ΠΎΠ²Π°Π½Π½ΡΠ΅ ΡΠ°Π·ΡΠΌΠ½ΡΠ΅ ΡΠΈΡΡΠ΅ΠΌΡ. ΠΠ· ΡΡΠΎΠ³ΠΎ ΡΠ»Π΅Π΄ΡΠ΅Ρ Π²ΡΠ²ΠΎΠ΄, ΡΡΠΎ ΠΈΡΠΊΡΡΡΡΠ²Π΅Π½Π½ΡΠΉ ΠΈΠ½ΡΠ΅Π»Π»Π΅ΠΊΡ ΡΠ°ΠΊΠΆΠ΅ Π΄ΠΎΠ»ΠΆΠ΅Π½ ΠΎΡΠ½ΠΎΠ²ΡΠ²Π°ΡΡΡΡ Π½Π° ΠΏΡΠΎΡΡΡΡ
, Π½ΠΎ ΠΌΠ°ΡΡΡΠ°Π±ΠΈΡΡΠ΅ΠΌΡΡ
ΠΈ Π±ΠΈΠΎΠΏΡΠ°Π²Π΄ΠΎΠΏΠΎΠ΄ΠΎΠ±Π½ΡΡ
Π°Π»Π³ΠΎΡΠΈΡΠΌΠ°Ρ
, Π² ΠΊΠΎΡΠΎΡΡΡ
ΡΡΠΎΡ
Π°ΡΡΠΈΡΠ΅ΡΠΊΠ°Ρ Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΠ° ΠΊΠΎΡΠΊΠΎΠ²ΡΡ
Π½Π΅ΠΉΡΠΎΠ½Π½ΡΡ
ΠΌΠΎΠ΄ΡΠ»Π΅ΠΉ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ Π±ΡΡΡΡΠΎ ΠΈ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎ Π½Π°Ρ
ΠΎΠ΄ΠΈΡΡ ΡΠ΅ΡΠ΅Π½ΠΈΡ ΡΠ»ΠΎΠΆΠ½ΡΡ
ΠΏΡΠΎΠ±Π»Π΅ΠΌ. Π¦Π΅Π»Ρ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ β Π°Π»Π³ΠΎΡΠΈΡΠΌΠΈΡΠ΅ΡΠΊΠ°Ρ ΡΠΎΡΠΌΠ°Π»ΠΈΠ·Π°ΡΠΈΡ Π½Π° ΡΡΠΎΠ²Π½Π΅ ΡΠ΅ΠΏΠ»ΠΈΠΊΠ°ΡΠΈΠ²Π½ΡΡ
Π½Π΅ΠΉΡΠΎΡΠ΅ΡΠ΅Π²ΡΡ
ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠΎΠ². ΠΠ°Π·ΠΎΠ²ΡΠΉ ΠΌΠΎΠ΄ΡΠ»Ρ ΠΈΡΠΊΡΡΡΡΠ²Π΅Π½Π½ΠΎΠ³ΠΎ ΠΈΠ½ΡΠ΅Π»Π»Π΅ΠΊΡΠ° ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½ ΠΊΠ°ΠΊ ΡΠΏΠ΅ΡΠΈΠ°Π»ΠΈΠ·Π°ΡΠΈΡ ΠΈ ΡΠΎΡΠΌΠ°Π»ΠΈΠ·Π°ΡΠΈΡ ΠΏΠΎΠ½ΡΡΠΈΡ Β«ΠΊΠΈΡΠ°ΠΉΡΠΊΠ°Ρ ΠΊΠΎΠΌΠ½Π°ΡΠ°Β», Π²Π²Π΅Π΄Π΅Π½Π½ΠΎΠ³ΠΎ ΠΠΆΠΎΠ½ΠΎΠΌ Π‘ΡΡΠ»ΠΎΠΌ. ΠΡΠΈΠ²Π΅Π΄Π΅Π½Ρ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠΎΠ² ΠΏΠΎ ΠΏΡΠΎΠ³Π½ΠΎΠ·ΠΈΡΠΎΠ²Π°Π½ΠΈΡ Π±ΠΈΠ½Π°ΡΠ½ΡΡ
ΠΏΠΎΡΠ»Π΅Π΄ΠΎΠ²Π°ΡΠ΅Π»ΡΠ½ΠΎΡΡΠ΅ΠΉ. ΠΠΎΠΌΠΏΡΡΡΠ΅ΡΠ½Π°Ρ ΡΠΈΠΌΡΠ»ΡΡΡ ΠΏΠΎΠΊΠ°Π·Π°Π»Π° Π²ΡΡΠΎΠΊΡΡ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ ΡΠ΅Π°Π»ΠΈΠ·Π°ΡΠΈΠΈ ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π½ΡΡ
Π°Π»Π³ΠΎΡΠΈΡΠΌΠΎΠ², ΠΏΡΠΈ ΡΡΠΎΠΌ Π²ΠΌΠ΅ΡΡΠΎ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ Π΄Π»Ρ ΠΊΠ°ΠΆΠ΄ΠΎΠΉ Π·Π°Π΄Π°ΡΠΈ ΡΡΠ°ΡΠ΅Π»ΡΠ½ΠΎ ΠΏΠΎΠ΄ΠΎΠ±ΡΠ°Π½Π½ΠΎΠ³ΠΎ ΠΈ Π°Π΄Π°ΠΏΡΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ ΠΎΡΠ΄Π΅Π»ΡΠ½ΠΎΠ³ΠΎ ΠΌΠ΅ΡΠΎΠ΄Π° Ρ ΡΠ°ΡΡΠΈΡΠ½ΠΎ ΡΠΊΠ²ΠΈΠ²Π°Π»Π΅Π½ΡΠ½ΠΎΠΉ ΠΏΠ΅ΡΠ΅ΡΠΎΡΠΌΡΠ»ΠΈΡΠΎΠ²ΠΊΠΎΠΉ Π·Π°Π΄Π°Ρ Π±ΡΠ»ΠΈ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½Ρ ΡΡΠ°Π½Π΄Π°ΡΡΠ½ΡΠΉ Π΅Π΄ΠΈΠ½ΡΠΉ ΠΏΠΎΠ΄Ρ
ΠΎΠ΄ ΠΈ Π΅Π΄ΠΈΠ½ΡΠ΅ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΡ Π°Π»Π³ΠΎΡΠΈΡΠΌΠ°. ΠΠ΅Π»Π°Π΅ΡΡΡ Π²ΡΠ²ΠΎΠ΄, ΡΡΠΎ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠΎΠ² ΠΏΠΎΠΊΠ°Π·ΡΠ²Π°ΡΡ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΡΡ
ΠΏΡΠΈΠΊΠ»Π°Π΄Π½ΡΡ
ΡΠ΅ΡΠ΅Π½ΠΈΠΉ Π½Π° Π±Π°Π·Π΅ ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π½ΠΎΠΉ ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΠΈ. ΠΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½Π½Π°Ρ ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΡ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ ΡΠΎΠ·Π΄Π°ΡΡ ΡΠ°ΠΌΠΎΠΎΠ±ΡΡΠ°ΡΡΠΈΠ΅ΡΡ ΠΈ ΠΏΠ»Π°Π½ΠΈΡΡΡΡΠΈΠ΅ Π΄Π΅ΡΡΠ΅Π»ΡΠ½ΠΎΡΡΡ ΡΠΈΡΡΠ΅ΠΌΡ
Π‘ΡΡΡΠΊΡΡΡΠ° ΠΈ ΡΡΠ½ΠΊΡΠΈΠΈ ΡΠ΅ΠΏΠ»ΠΈΠΊΠ°ΡΠΈΠ²Π½ΠΎΠ³ΠΎ Π½Π΅ΠΉΡΠΎΠΏΠΎΠ΄ΠΎΠ±Π½ΠΎΠ³ΠΎ ΠΌΠΎΠ΄ΡΠ»Ρ
The given work describes a technology of construction of neural network system of artificial intellect (AI) at a junction of declarative programming and machine training on the basis of modelling of cortical columns. Evolutionary mechanisms, using available material and relatively simple phenomena, have created complex intelligent systems. From this, the authors conclude that AI should also be based on simple but scalable and biofeasible algorithms, in which the stochastic dynamics of cortical neural modules allow to find solutions to of complex problems quickly and efficiently.. Purpose: Algorithmic formalization at the level of replicative neural network complexes - neocortex columns of the brain. Methods: The basic AI module is presented as a specialization and formalization of the concept "Chinese room" introduced by John Earle. The results of experiments on forecasting binary sequences are presented. The computer simulation experiments have shown high efficiency in implementing the proposed algorithms. At the same time, instead of using for each task a carefully selected and adapted separate method with partially equivalent restatement of tasks, the standard unified approach and unified algorithm parameters were used. It is concluded that the results of the experiments show the possibility of effective applied solutions based on the proposed technology. Practical value: the presented technology allows creating self-learning and planning systems.ΠΠΏΠΈΡΡΠ²Π°Π΅ΡΡΡ ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΡ ΠΏΠΎΡΡΡΠΎΠ΅Π½ΠΈΡ Π½Π΅ΠΉΡΠΎΡΠ΅ΡΠ΅Π²ΠΎΠΉ ΡΠΈΡΡΠ΅ΠΌΡ ΠΈΡΠΊΡΡΡΡΠ²Π΅Π½Π½ΠΎΠ³ΠΎ ΠΈΠ½ΡΠ΅Π»Π»Π΅ΠΊΡΠ° Π½Π° ΡΡΡΠΊΠ΅ Π΄Π΅ΠΊΠ»Π°ΡΠ°ΡΠΈΠ²Π½ΠΎΠ³ΠΎ ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΈ ΠΌΠ°ΡΠΈΠ½Π½ΠΎΠ³ΠΎ ΠΎΠ±ΡΡΠ΅Π½ΠΈΡ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΌΠΎΠ΄Π΅Π»ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΊΠΎΡΡΠΈΠΊΠ°Π»ΡΠ½ΡΡ
ΠΊΠΎΠ»ΠΎΠ½ΠΎΠΊ. ΠΡΠΏΠΎΠ»ΡΠ·ΡΡ Π΄ΠΎΡΡΡΠΏΠ½ΡΠΉ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π» ΠΈ ΡΡΠ°Π²Π½ΠΈΡΠ΅Π»ΡΠ½ΠΎ ΠΏΡΠΎΡΡΡΠ΅ ΡΠ²Π»Π΅Π½ΠΈΡ, ΡΠ²ΠΎΠ»ΡΡΠΈΠΎΠ½Π½ΡΠ΅ ΠΌΠ΅Ρ
Π°Π½ΠΈΠ·ΠΌΡ ΡΠΎΠ·Π΄Π°Π»ΠΈ ΡΠ»ΠΎΠΆΠ½ΠΎΠΎΡΠ³Π°Π½ΠΈΠ·ΠΎΠ²Π°Π½Π½ΡΠ΅ ΡΠ°Π·ΡΠΌΠ½ΡΠ΅ ΡΠΈΡΡΠ΅ΠΌΡ. ΠΠ· ΡΡΠΎΠ³ΠΎ ΡΠ»Π΅Π΄ΡΠ΅Ρ Π²ΡΠ²ΠΎΠ΄, ΡΡΠΎ ΠΈΡΠΊΡΡΡΡΠ²Π΅Π½Π½ΡΠΉ ΠΈΠ½ΡΠ΅Π»Π»Π΅ΠΊΡ ΡΠ°ΠΊΠΆΠ΅ Π΄ΠΎΠ»ΠΆΠ΅Π½ ΠΎΡΠ½ΠΎΠ²ΡΠ²Π°ΡΡΡΡ Π½Π° ΠΏΡΠΎΡΡΡΡ
, Π½ΠΎ ΠΌΠ°ΡΡΡΠ°Π±ΠΈΡΡΠ΅ΠΌΡΡ
ΠΈ Π±ΠΈΠΎΠΏΡΠ°Π²Π΄ΠΎΠΏΠΎΠ΄ΠΎΠ±Π½ΡΡ
Π°Π»Π³ΠΎΡΠΈΡΠΌΠ°Ρ
, Π² ΠΊΠΎΡΠΎΡΡΡ
ΡΡΠΎΡ
Π°ΡΡΠΈΡΠ΅ΡΠΊΠ°Ρ Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΠ° ΠΊΠΎΡΠΊΠΎΠ²ΡΡ
Π½Π΅ΠΉΡΠΎΠ½Π½ΡΡ
ΠΌΠΎΠ΄ΡΠ»Π΅ΠΉ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ Π±ΡΡΡΡΠΎ ΠΈ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎ Π½Π°Ρ
ΠΎΠ΄ΠΈΡΡ ΡΠ΅ΡΠ΅Π½ΠΈΡ ΡΠ»ΠΎΠΆΠ½ΡΡ
ΠΏΡΠΎΠ±Π»Π΅ΠΌ. Π¦Π΅Π»Ρ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ β Π°Π»Π³ΠΎΡΠΈΡΠΌΠΈΡΠ΅ΡΠΊΠ°Ρ ΡΠΎΡΠΌΠ°Π»ΠΈΠ·Π°ΡΠΈΡ Π½Π° ΡΡΠΎΠ²Π½Π΅ ΡΠ΅ΠΏΠ»ΠΈΠΊΠ°ΡΠΈΠ²Π½ΡΡ
Π½Π΅ΠΉΡΠΎΡΠ΅ΡΠ΅Π²ΡΡ
ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠΎΠ². ΠΠ°Π·ΠΎΠ²ΡΠΉ ΠΌΠΎΠ΄ΡΠ»Ρ ΠΈΡΠΊΡΡΡΡΠ²Π΅Π½Π½ΠΎΠ³ΠΎ ΠΈΠ½ΡΠ΅Π»Π»Π΅ΠΊΡΠ° ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½ ΠΊΠ°ΠΊ ΡΠΏΠ΅ΡΠΈΠ°Π»ΠΈΠ·Π°ΡΠΈΡ ΠΈ ΡΠΎΡΠΌΠ°Π»ΠΈΠ·Π°ΡΠΈΡ ΠΏΠΎΠ½ΡΡΠΈΡ Β«ΠΊΠΈΡΠ°ΠΉΡΠΊΠ°Ρ ΠΊΠΎΠΌΠ½Π°ΡΠ°Β», Π²Π²Π΅Π΄Π΅Π½Π½ΠΎΠ³ΠΎ ΠΠΆΠΎΠ½ΠΎΠΌ Π‘ΡΡΠ»ΠΎΠΌ. ΠΡΠΈΠ²Π΅Π΄Π΅Π½Ρ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠΎΠ² ΠΏΠΎ ΠΏΡΠΎΠ³Π½ΠΎΠ·ΠΈΡΠΎΠ²Π°Π½ΠΈΡ Π±ΠΈΠ½Π°ΡΠ½ΡΡ
ΠΏΠΎΡΠ»Π΅Π΄ΠΎΠ²Π°ΡΠ΅Π»ΡΠ½ΠΎΡΡΠ΅ΠΉ. ΠΠΎΠΌΠΏΡΡΡΠ΅ΡΠ½Π°Ρ ΡΠΈΠΌΡΠ»ΡΡΡ ΠΏΠΎΠΊΠ°Π·Π°Π»Π° Π²ΡΡΠΎΠΊΡΡ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ ΡΠ΅Π°Π»ΠΈΠ·Π°ΡΠΈΠΈ ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π½ΡΡ
Π°Π»Π³ΠΎΡΠΈΡΠΌΠΎΠ², ΠΏΡΠΈ ΡΡΠΎΠΌ Π²ΠΌΠ΅ΡΡΠΎ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ Π΄Π»Ρ ΠΊΠ°ΠΆΠ΄ΠΎΠΉ Π·Π°Π΄Π°ΡΠΈ ΡΡΠ°ΡΠ΅Π»ΡΠ½ΠΎ ΠΏΠΎΠ΄ΠΎΠ±ΡΠ°Π½Π½ΠΎΠ³ΠΎ ΠΈ Π°Π΄Π°ΠΏΡΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ ΠΎΡΠ΄Π΅Π»ΡΠ½ΠΎΠ³ΠΎ ΠΌΠ΅ΡΠΎΠ΄Π° Ρ ΡΠ°ΡΡΠΈΡΠ½ΠΎ ΡΠΊΠ²ΠΈΠ²Π°Π»Π΅Π½ΡΠ½ΠΎΠΉ ΠΏΠ΅ΡΠ΅ΡΠΎΡΠΌΡΠ»ΠΈΡΠΎΠ²ΠΊΠΎΠΉ Π·Π°Π΄Π°Ρ Π±ΡΠ»ΠΈ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½Ρ ΡΡΠ°Π½Π΄Π°ΡΡΠ½ΡΠΉ Π΅Π΄ΠΈΠ½ΡΠΉ ΠΏΠΎΠ΄Ρ
ΠΎΠ΄ ΠΈ Π΅Π΄ΠΈΠ½ΡΠ΅ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΡ Π°Π»Π³ΠΎΡΠΈΡΠΌΠ°. ΠΠ΅Π»Π°Π΅ΡΡΡ Π²ΡΠ²ΠΎΠ΄, ΡΡΠΎ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠΎΠ² ΠΏΠΎΠΊΠ°Π·ΡΠ²Π°ΡΡ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΡΡ
ΠΏΡΠΈΠΊΠ»Π°Π΄Π½ΡΡ
ΡΠ΅ΡΠ΅Π½ΠΈΠΉ Π½Π° Π±Π°Π·Π΅ ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π½ΠΎΠΉ ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΠΈ. ΠΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½Π½Π°Ρ ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΡ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ ΡΠΎΠ·Π΄Π°ΡΡ ΡΠ°ΠΌΠΎΠΎΠ±ΡΡΠ°ΡΡΠΈΠ΅ΡΡ ΠΈ ΠΏΠ»Π°Π½ΠΈΡΡΡΡΠΈΠ΅ Π΄Π΅ΡΡΠ΅Π»ΡΠ½ΠΎΡΡΡ ΡΠΈΡΡΠ΅ΠΌΡ
LARGE-SCALE NEURAL NETWORK MODELING: FROM NEURONAL MICROCIRCUITS TO WHOLE-BRAIN COMPLEX NETWORK DYNAMICS
Neural networks mediate human cognitive functions, such as sensory processing, memory, attention, etc. Computational modeling has been proved as a powerful tool to test hypothesis of network mechanisms underlying cognitive functions, and to understand better human neuroimaging data. The dissertation presents a large-scale neural network modeling study of human brain visual/auditory processing and how this process interacts with memory and attention.
We first modeled visual and auditory objects processing and short-term memory with local microcircuits and a large-scale recurrent network. We proposed a biologically realistic network implementation of storing multiple items in short-term memory. We then realized the effect that people involuntarily switch attention to salient distractors and are difficult to distract when attending to salient stimuli, by
incorporating exogenous and endogenous attention modules. The integrated model could perform a number of cognitive tasks utilizing different cognitive functions by only changing a task-specification parameter. Based on the performance and simulated imaging results of these tasks, we proposed hypothesis for the neural mechanism beneath several important phenomena, which may be tested experimentally in the future.
Theory of complex network has been applied in the analysis of neuroimaging data, as it provides a topological abstraction of the human brain. We constructed functional connectivity networks for various simulated experimental conditions. A number of important network properties were studied, including the scale-free property, the global efficiency, modular structure, and explored their relations with task complexity. We showed that these network properties and their dynamics of our simulated networks matched empirical studies, which verifies the validity and importance of our modeling work in testing neural network hypothesis