论文标题
深层二维动力学尖峰神经元网络,用于训练有STDP的时间编码
A Deep 2-Dimensional Dynamical Spiking Neuronal Network for Temporal Encoding trained with STDP
论文作者
论文摘要
已知大脑是一个高度复杂,异步的动力系统,高度量身定制以编码时间信息。但是,最近的深度学习方法无法利用这种时间编码。尖峰神经网络(SNN)可以使用生物现实的学习机制进行训练,并且可以具有在生物学上相关的神经元激活规则。这种类型的网络也从根本上构建了围绕通过时间付费的电压更新接受时间信息,这是当前速率编码网络困难的一种输入。在这里,我们表明,具有动态的,混乱的大型SNN模仿具有生物学启发的学习规则的动态性,混乱的活动,例如STDP,能够从时间数据中编码信息。我们认为,网络权重中固有的随机性使神经元可以形成组的组来编码用STDP自组织后要输入的时间数据。我们的目的是表明,输入刺激的精确时机对于在分层网络中形成同步神经群至关重要。我们根据网络熵分析网络作为信息传输的指标。我们希望立即解决两个问题:为人工智能创建人造时间神经系统,以及解决大脑中的编码机制。
The brain is known to be a highly complex, asynchronous dynamical system that is highly tailored to encode temporal information. However, recent deep learning approaches to not take advantage of this temporal coding. Spiking Neural Networks (SNNs) can be trained using biologically-realistic learning mechanisms, and can have neuronal activation rules that are biologically relevant. This type of network is also structured fundamentally around accepting temporal information through a time-decaying voltage update, a kind of input that current rate-encoding networks have difficulty with. Here we show that a large, deep layered SNN with dynamical, chaotic activity mimicking the mammalian cortex with biologically-inspired learning rules, such as STDP, is capable of encoding information from temporal data. We argue that the randomness inherent in the network weights allow the neurons to form groups that encode the temporal data being inputted after self-organizing with STDP. We aim to show that precise timing of input stimulus is critical in forming synchronous neural groups in a layered network. We analyze the network in terms of network entropy as a metric of information transfer. We hope to tackle two problems at once: the creation of artificial temporal neural systems for artificial intelligence, as well as solving coding mechanisms in the brain.