Advances in Complex Systems最新文献_第10页

Some Control and Observation Issues in Cellular Automata 元胞自动机的控制与观察问题

IF 0.4 4区数学

Advances in Complex Systems Pub Date : 2021-09-15 DOI: 10.25088/complexsystems.30.3.391

S. Yacoubi, T. Plénet, S. Dridi, F. Bagnoli, L. Lefévre, C. Raïevsky

引用次数: 1

Macroscopic fundamental flow diagrams of a spiritually motivated crowd 精神激励人群的宏观基本流程图

IF 0.4 4区数学

Advances in Complex Systems Pub Date : 2021-08-19 DOI: 10.1142/s0219525921500028

H. Gayathri, P. Karthika, Ashish Verma

引用次数: 3

Risk Awareness to epidemic Information and Self-Restricted Travel Behavior on Contagion 疫情信息风险意识与传染病自限性出行行为

IF 0.4 4区数学

Advances in Complex Systems Pub Date : 2021-08-11 DOI: 10.1142/s0219525921500016

Wen-Juan Xu, Chen-Yang Zhong, Hui-Fen Ye, Rongda Chen, T. Qiu, F. Ren, Li-Xin Zhong

{"title":"Risk Awareness to epidemic Information and Self-Restricted Travel Behavior on Contagion","authors":"Wen-Juan Xu, Chen-Yang Zhong, Hui-Fen Ye, Rongda Chen, T. Qiu, F. Ren, Li-Xin Zhong","doi":"10.1142/s0219525921500016","DOIUrl":"https://doi.org/10.1142/s0219525921500016","url":null,"abstract":"By incorporating delayed epidemic information and self-restricted travel behavior into the SIS model, we have investigated the coupled effects of timely and accurate epidemic information and people’s sensitivity to the epidemic information on contagion. In the population with only local random movement, whether the epidemic information is delayed or not has no effect on the spread of the epidemic. People’s high sensitivity to the epidemic information leads to their risk aversion behavior and the spread of the epidemic is suppressed. In the population with only global person-to-person movement, timely and accurate epidemic information helps an individual cut off the connections with the infected in time and the epidemic is brought under control in no time. A delay in the epidemic information leads to an individual’s misjudgment of who has been infected and who has not, which in turn leads to rapid progress and a higher peak of the epidemic. In the population with coexistence of local and global movement, timely and accurate epidemic information and people’s high sensitivity to the epidemic information play an important role in curbing the epidemic. A theoretical analysis indicates that people’s misjudgment caused by the delayed epidemic information leads to a higher encounter probability between the susceptible and the infected and people’s self-restricted travel behavior helps reduce such an encounter probability. A functional relation between the ratio of infected individuals and the susceptible-infected encounter probability has been found.","PeriodicalId":50871,"journal":{"name":"Advances in Complex Systems","volume":"136 1","pages":"2150001:1-2150001:20"},"PeriodicalIF":0.4,"publicationDate":"2021-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76447214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Network of scientific concepts: empirical analysis and modeling 科学概念网络:实证分析与建模

IF 0.4 4区数学

Advances in Complex Systems Pub Date : 2021-08-09 DOI: 10.1142/S0219525921400014

V. Palchykov, M. Krasnytska, O. Mryglod, Y. Holovatch

引用次数: 3

The General Ownership Structure of the European Aerospace Industry a Statistical and Network Analysis 欧洲航空航天工业总体股权结构的统计与网络分析

IF 0.4 4区数学

Advances in Complex Systems Pub Date : 2021-08-01 DOI: 10.1142/s0219525921500120

L. Biggiero, Robert Magnuszewski

{"title":"The General Ownership Structure of the European Aerospace Industry a Statistical and Network Analysis","authors":"L. Biggiero, Robert Magnuszewski","doi":"10.1142/s0219525921500120","DOIUrl":"https://doi.org/10.1142/s0219525921500120","url":null,"abstract":"In this paper, we investigate the ownership structure of the 3143 EU28 aerospace companies in 2019, and extend the analysis to the 2428 neighbor partners outside EU28 and/or aerospace. Different from the previous studies, we consider all equity capital flows regardless of their size, and their monetary value instead of the corresponding ownership share. We further innovate by applying new methods to measure degree of influence power and hierarchical structure. The resulting picture shows that between the pure EU28 aerospace companies: (i) ownership relationships concern only relatively few companies (10%), which trigger horizontal and vertical structures; (ii) density is extremely low; (iii) relationships are fully hierarchical with no cross-ownership; (iv) capital is seldom transferred across business groups; (v) most of the main topological parameters have a typically polarized scale-free structure. When including also the ownership neighbors, some of those traits change substantially: (i) the share of connected companies substantially grows up to 63%; (ii) size and length of the largest pyramidal structures will grow remarkably, reaching a top of 874 companies; (iii) the industry becomes a full small-world structure, thus allowing huge capital transfer across business groups. Finally, a dramatic financialization, meant as a pivotal and quantitatively heavy role of financial operators, emerges also as a clear characteristic of the extended network.","PeriodicalId":50871,"journal":{"name":"Advances in Complex Systems","volume":"15 1","pages":"2150012:1-2150012:47"},"PeriodicalIF":0.4,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87570893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

A Semi-Markovian Approach to drawdown-based Measures 基于缩减措施的半马尔可夫方法

IF 0.4 4区数学

Advances in Complex Systems Pub Date : 2021-06-23 DOI: 10.1142/S0219525920500204

G. D’Amico, Bice di Basilio, F. Petroni

引用次数: 2

Improved Majority Identification by the Coarsened Majority Automaton 基于粗化多数自动机的改进多数识别

IF 0.4 4区数学

Advances in Complex Systems Pub Date : 2021-06-17 DOI: 10.25088/ComplexSystems.31.2.191

D. Peak, C. Torre, J. R. Whiteley

引用次数: 0

Formal Logic of Cellular Automata 元胞自动机的形式逻辑

IF 0.4 4区数学

Advances in Complex Systems Pub Date : 2021-06-15 DOI: 10.25088/complexsystems.30.2.187

Sukanta Das, Mihir K. Chakraborty

引用次数: 0

Foreword to the Special Issue on Success in Science 《科学上的成功》特刊前言

IF 0.4 4区数学

Advances in Complex Systems Pub Date : 2021-06-01 DOI: 10.1142/s021952592102001x

Luca Verginer, Giacomo Vaccario, A. Petersen

引用次数: 0

Infinitely growing configurations in Emil Post's tag system problem Emil Post标签系统问题中的无限增长结构

IF 0.4 4区数学

Advances in Complex Systems Pub Date : 2021-05-16 DOI: 10.25088/ComplexSystems.31.3.279

N. Kurilenko

引用次数: 0