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== <span style="color: #FFFFFF;">Remembering</span> == * '''Neuromorphic computing''' β Computing architectures inspired by the structure and function of biological brains. * '''Spiking Neural Network (SNN)''' β A neural network model where neurons communicate via discrete spikes (events) rather than continuous activations. * '''Spike''' β A discrete event (action potential analog) fired by a neuron when its membrane potential exceeds a threshold. * '''Leaky Integrate-and-Fire (LIF)''' β The simplest neuron model: integrates incoming spikes, leaks charge over time, fires when threshold is reached. * '''Temporal coding''' β Encoding information in the timing of spikes, not just their rate. * '''Rate coding''' β Encoding information in the average spike frequency over a time window. * '''STDP (Spike-Timing Dependent Plasticity)''' β A biologically plausible learning rule: synapses strengthen when the pre-synaptic neuron fires just before the post-synaptic neuron, and weaken otherwise. * '''Intel Loihi''' β Intel's neuromorphic research chip supporting SNNs with on-chip learning. * '''IBM TrueNorth''' β IBM's neuromorphic chip with 4096 cores, 1M programmable neurons, 256M synapses at 70mW. * '''Event-driven computation''' β Processing only when an event (spike) occurs, not on a fixed clock cycle; enables extreme power efficiency. * '''Synaptic plasticity''' β The ability of synaptic connections to strengthen or weaken over time; the basis of learning in biological brains. * '''Memristor''' β A resistor with memory β resistance depends on past current β enabling synaptic weight storage in hardware. * '''In-memory computing''' β Performing computation directly in memory arrays, eliminating the von Neumann memory bottleneck. * '''Sparse activation''' β Only a small fraction of neurons fire at any given time in biological systems; SNNs exploit this for efficiency. </div> <div style="background-color: #006400; color: #FFFFFF; padding: 20px; border-radius: 8px; margin-bottom: 15px;">
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