在单稳多振动器定时神经元的训练网络上
Lars Keuninckx1, Matthias Hartmann1, Paul Detterer2
1Interuniversity Microelectronics Centre (IMEC), Kapeldreef 75, Leuven, 3001, Belgium.
概括
神经形态硬件可以通过OR输入的简单计时器 (单稳定多振动器) 克服突触加法瓶. 这使得高效,事件驱动的网络可用于低能耗的分类任务.
科学领域:
- 神经形态工程的神经形态工程
- 数字硬件设计数字硬件设计
- 人工神经网络的人工神经网络
背景情况:
- 目前的神经形态硬件由于突触加法而面临限制,限制并行化和处理速度.
- 这种瓶阻碍了高效和可扩展的人工智能系统的发展.
研究的目的:
- 引入一种新的神经形态网络架构,缓解突触加法瓶.
- 为了证明这种新方法在解决复杂的分类任务中的有效性.
主要方法:
- 使用单稳定多振动器计时器实现网络,其中突触输入是OR-ed,绕过传统的添加.
- 为这些定时器的完全二元化,事件驱动的反复网络开发一个训练算法.
- 在训练算法中解决暂时重叠的输入事件.
主要成果:
- 成功培训拟议的网络进行分类任务,包括MNIST手写数字,谷歌Soli雷达手势,IBM DVS128手势和阴阳.
- 通过500个单位的可重新配置网络,实现了高测试准确度 (98.61%在MNIST上).
- 在28nm工艺上,每次推断855pJ的低能耗预计为MNIST任务 (不包括读取层).
结论:
- 单稳定多振动器网络为神经形态硬件中的突触加法瓶提供了可行的解决方案.
- 这种方法可以实现高效,事件驱动的处理,适合各种分类挑战.
- 证明的低能耗突出了节能神经形态计算的潜力.
相关概念视频
Neural Circuits
2.6K
Neural circuits and neuronal pools are two of the main structures found in the nervous system. Neural circuits are networks of neurons that work together to carry out a specific task or process. They consist of interconnected neurons and glial cells, which provide structural and metabolic support.
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
2.6K
Network Function of a Circuit
642
Frequency response analysis in electrical circuits provides vital insights into a circuit's behavior as the frequency of the input signal changes. The transfer function, a mathematical tool, is instrumental in understanding this behavior. It defines the relationship between phasor output and input and comes in four types: voltage gain, current gain, transfer impedance, and transfer admittance. The critical components of the transfer function are the poles and zeros.
642
Applications of RC Circuits
4.0K
A relaxation oscillator is one of the applications of RC circuits. A neon lamp relaxation oscillator comprises a capacitor, a resistor, a voltage source, and a lamp. The lamp acts like an open circuit, with infinite resistance until the potential difference across the lamp reaches a specific voltage. At that voltage, the lamp acts like a short circuit with zero resistance, and the capacitor discharges through the lamp, thus producing light. Once the capacitor is fully discharged through the...
4.0K
Motor Unit Stimulation
3.5K
When the neuron of a motor unit fires an action potential, it triggers a series of events, leading to a twitch contraction in the muscle fibers. The process of excitation-contraction coupling is crucial in relaying the action potential to the muscle fibers.
The latent period of contraction marks the onset of excitation-contraction coupling, when the action potential propagates across the sarcolemma, preparing the muscle fibers for contraction. As the fibers enter the contraction phase, the...
The latent period of contraction marks the onset of excitation-contraction coupling, when the action potential propagates across the sarcolemma, preparing the muscle fibers for contraction. As the fibers enter the contraction phase, the...
3.5K
Long-term Potentiation
58.3K
Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre- and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
58.3K
Electrical Synapses
10.2K
Electrical synapses found in all nervous systems play important and unique roles. In these synapses, the presynaptic and postsynaptic membranes are very close together (3.5 nm) and are actually physically connected by channel proteins forming gap junctions.
Gap junctions allow the current to pass directly from one cell to the next. In contrast, in the chemical synapse, the neurotransmitters carry the information through the synaptic cleft from one neuron to the next. They consist of two...
Gap junctions allow the current to pass directly from one cell to the next. In contrast, in the chemical synapse, the neurotransmitters carry the information through the synaptic cleft from one neuron to the next. They consist of two...
10.2K


