neurali:spike-time_dependent_plasticity
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neurali:spike-time_dependent_plasticity [2015/07/13 11:42] – [Sinapsi eccitatoria] profpro | neurali:spike-time_dependent_plasticity [2020/06/08 22:20] (current) – external edit 127.0.0.1 | ||
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+ | ===== Spike-Time Dependent Plasticity ==== | ||
+ | Vedere [[neurali: | ||
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+ | Vedere anche [[neurali: | ||
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+ | Oggi il concetto di sinapsi di tipo **Spike-Time Dependent**, | ||
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+ | ====Sinapsi eccitatoria==== | ||
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+ | Se l' | ||
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+ | Appronfondimento [[neurali: | ||
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+ | http:// | ||
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+ | Per evitare che ci siano solo rafforzamenti della sinapsi oppure solo indebolamenti, | ||
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+ | [[neurali: | ||
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+ | ====STDP Connection==== | ||
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+ | probabilmente neurone NEST IAF modello | ||
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+ | ^parametro^tipo^descrizione^ | ||
+ | |tau_plus|double|Time constant of STDP window, potentiation in ms (tau_minus defined in post-synaptic neuron)| | ||
+ | |lambda|double|Step size| | ||
+ | |alpha|double|Asymmetry parameter (scales depressing increments as alpha*lambda)| | ||
+ | |mu_plus|double|Weight dependence exponent, potentiation| | ||
+ | |mu_minus|double|Weight dependence exponent, depression| | ||
+ | |Wmax|double|Maximum allowed weight| | ||
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+ | Si può scegliere la dipendenza dei pesi dall' | ||
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+ | Dipendenza moltiplicativa | ||
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+ | multiplicative STDP [2] mu_plus = mu_minus = 1.0 |