Department of Computer Science, University of Manitoba, Winnipeg, MB, Canada.
Department of Computer Science, Faculty of Science, Ryerson University, Toronto, Canada.
Adv Neurobiol. 2024;36:983-997. doi: 10.1007/978-3-031-47606-8_48.
Characterizations in terms of fractals are typically employed for systems with complex and multiscale descriptions. A prominent example of such systems is provided by the human brain, which can be idealized as a complex dynamical system made of many interacting subunits. The human brain can be modeled in terms of observable variables together with their spatio-temporal-functional relations. Computational intelligence is a research field bridging many nature-inspired computational methods, such as artificial neural networks, fuzzy systems, and evolutionary and swarm intelligence optimization techniques. Typical problems faced by means of computational intelligence methods include those of recognition, such as classification and prediction. Although historically conceived to operate in some vector space, such methods have been recently extended to the so-called nongeometric spaces, considering labeled graphs as the most general example of such patterns. Here, we suggest that fractal analysis and computational intelligence methods can be exploited together in neuroscience research. Fractal characterizations can be used to (i) assess scale-invariant properties and (ii) offer numeric, feature-based representations to complement the usually more complex pattern structures encountered in neurosciences. Computational intelligence methods could be used to exploit such fractal characterizations, considering also the possibility to perform data-driven analysis of nongeometric input spaces, therby overcoming the intrinsic limits related to Euclidean geometry.
分形特征通常用于具有复杂和多尺度描述的系统。这样的系统的一个突出例子是人类大脑,可以将其理想化为由许多相互作用的子单元组成的复杂动力系统。可以根据可观察变量及其时空功能关系对人类大脑进行建模。计算智能是一个桥梁许多受自然启发的计算方法的研究领域,例如人工神经网络、模糊系统和进化与群体智能优化技术。计算智能方法面临的典型问题包括识别问题,例如分类和预测。尽管历史上被认为是在一些向量空间中运行,但这些方法最近已经扩展到所谓的非几何空间,将标记图作为这种模式的最一般示例。在这里,我们建议分形分析和计算智能方法可以一起用于神经科学研究。分形特征可用于 (i) 评估具有尺度不变性的属性,以及 (ii) 提供数值、基于特征的表示,以补充神经科学中通常遇到的更复杂的模式结构。可以使用计算智能方法来利用这种分形特征,同时还考虑到对非几何输入空间进行数据驱动分析的可能性,从而克服与欧几里得几何相关的内在限制。