Control of ecological networks: Abundance control or ecological regulation? [0.03%]
生态网络控制：丰度控制还是生态调控？
Xiaoting Liu,Maoxing Liu,Donghua Zhao et al.
Xiaoting Liu et al.
Complex ecosystems often exhibit a tipping point around which a small perturbation can lead to the loss of the basic functionality of ecosystems. It is challenging to develop a control strategy to bring ecosystems to the desired stable stat...
Identification method for a fractional-order system in terms of equivalent dynamic properties [0.03%]
基于等效动力学特性的分数阶系统辨识方法
Minjuan Yuan,Wei Xu,Fawang Liu et al.
Minjuan Yuan et al.
In this paper, we introduce an efficient method for identifying fractional dynamic systems using extended sparse regression and cross-validation techniques. The former identifies equations that fit the data with varying candidate functions,...
A few-shot identification method for stochastic dynamical systems based on residual multipeaks adaptive sampling [0.03%]
基于残差多峰自适应采样的概率演化系统的少量样本识别方法
Xiao-Kai An,Lin Du,Feng Jiang et al.
Xiao-Kai An et al.
Neural networks are popular data-driven modeling tools that come with high data collection costs. This paper proposes a residual-based multipeaks adaptive sampling (RMAS) algorithm, which can reduce the demand for a large number of samples ...
Nonlinear shifts and dislocations in financial market structure and composition [0.03%]
金融市场的非线性转变及错位
Nick James,Max Menzies
Nick James
This paper develops new mathematical techniques to identify temporal shifts among a collection of US equities partitioned into a new and more detailed set of market sectors. Although conceptually related, our three analyses reveal distinct ...
Hao Peng,Zhihao Kuang,Dandan Zhao et al.
Hao Peng et al.
In many real-world phenomena, such as the reconstruction of disaster areas after an earthquake or the stock market's recovery after an economic crisis, damaged networks are spontaneously active after receiving assistance. To reveal how the ...
Xiaofeng Luo,Guiquan Sun,Runzi He et al.
Xiaofeng Luo et al.
Networked Turing patterns often manifest as groups of nodes distributed on either side of the homogeneous equilibrium, exhibiting high and low density. These pattern formations are significantly influenced by network topological characteris...
Ising spin-1/2 XXZ chain's quantum problems beyond the spinon paradigm [0.03%]
超越自旋子范式的spin-1/2 XXZ链的量子问题
J M P Carmelo,P D Sacramento
J M P Carmelo
Spin chains are correlated quantum models of great interest in quantum systems and materials exhibiting quasi-one-dimensional magnetic properties. Here, we review results on quantum problems associated with spin chains that are beyond the u...
Marcin Wątorek,Paweł Szydło,Jarosław Kwapień et al.
Marcin Wątorek et al.
The non-fungible token (NFT) market emerges as a recent trading innovation leveraging blockchain technology, mirroring the dynamics of the cryptocurrency market. The current study is based on the capitalization changes and transaction volum...
Julius Trebbien,Anton Tausendfreund,Leonardo Rydin Gorjão et al.
Julius Trebbien et al.
Electricity markets are central to the coordination of power generation and demand. The European power system is divided into several bidding zones, each having an individual electricity market price. While individual price time series have...
Photonic next-generation reservoir computer based on distributed feedback in optical fiber [0.03%]
基于光纤分布式反馈的光子下一代腔池计算机
Nicholas Cox,Joseph Murray,Joseph Hart et al.
Nicholas Cox et al.
Reservoir computing (RC) is a machine learning paradigm that excels at dynamical systems analysis. Photonic RCs, which perform implicit computation through optical interactions, have attracted increasing attention due to their potential for...