Sökning: "Hebbian learning"
Visar resultat 1 - 5 av 11 avhandlingar innehållade orden Hebbian learning.
1. Spike-Based Bayesian-Hebbian Learning in Cortical and Subcortical Microcircuits
Sammanfattning : Cortical and subcortical microcircuits are continuously modified throughout life. Despite ongoing changes these networks stubbornly maintain their functions, which persist although destabilizing synaptic and nonsynaptic mechanisms should ostensibly propel them towards runaway excitation or quiescence. LÄS MER
2. Computational Modeling of the Basal Ganglia : Functional Pathways and Reinforcement Learning
Sammanfattning : We perceive the environment via sensor arrays and interact with it through motor outputs. The work of this thesis concerns how the brain selects actions given the information about the perceived state of the world and how it learns and adapts these selections to changes in this environment. LÄS MER
3. Online Learning for Robot Vision
Sammanfattning : In tele-operated robotics applications, the primary information channel from the robot to its human operator is a video stream. For autonomous robotic systems however, a much larger selection of sensors is employed, although the most relevant information for the operation of the robot is still available in a single video stream. LÄS MER
4. Spontaneous Movements during Sleep Guide Spinal Self-organization: Formation and Expression of a Memory Trace
Sammanfattning : During development, information about the three-dimensional shape and mechanical properties of the body is laid down in the synaptic connectivity of sensorimotor systems through adaptive mechanisms. In spinal reflex systems, this enables the fast transformation of complex sensory information into adequate correction of movements. LÄS MER
5. Neuronal assembly formation and non-random recurrent connectivity induced by homeostatic structural plasticity
Sammanfattning : Plasticity is usually classified into two distinct categories: Hebbian or homeostatic. Hebbian is driven by correlation in the activity of neurons, while homeostatic relies on a negative feedback signal to control neuronal activity. LÄS MER