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Journal of Systems Science & Complexity最新文献

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Stability Analysis and Group Consensus Tracking Predictive Control of Multi-Agent Systems 多智能体系统的稳定性分析与群一致跟踪预测控制
3区 数学 Q1 MATHEMATICS, INTERDISCIPLINARY APPLICATIONS Pub Date : 2023-10-01 DOI: 10.1007/s11424-023-1397-4
Yanjiang Li, Chong Tan, Jingxian Wu, Guo-Ping Liu, Yin Cui
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引用次数: 0
Fractional Order Iteration for Gradient Descent Method Based on Event-Triggered Mechanism 基于事件触发机制的梯度下降法分数阶迭代
3区 数学 Q1 MATHEMATICS, INTERDISCIPLINARY APPLICATIONS Pub Date : 2023-10-01 DOI: 10.1007/s11424-023-2028-9
Jiajie Lu, Yong Wang, Yuan Fan
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引用次数: 0
High-Dimensional Volatility Matrix Estimation with Cross-Sectional Dependent and Heavy-Tailed Microstructural Noise 基于截面相关和重尾微结构噪声的高维波动矩阵估计
3区 数学 Q1 MATHEMATICS, INTERDISCIPLINARY APPLICATIONS Pub Date : 2023-10-01 DOI: 10.1007/s11424-023-2080-5
Wanwan Liang, Ben Wu, Xinyan Fan, Bingyi Jing, Bo Zhang
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引用次数: 0
Study on the Problem of Multistage Vaccine Production and Allocation with Capacity Constraints 产能约束下多阶段疫苗生产与分配问题研究
3区 数学 Q1 MATHEMATICS, INTERDISCIPLINARY APPLICATIONS Pub Date : 2023-10-01 DOI: 10.1007/s11424-023-2065-4
Qianqian Han, Yuwei Zhang, Zhenping Li, Yong Fang
{"title":"Study on the Problem of Multistage Vaccine Production and Allocation with Capacity Constraints","authors":"Qianqian Han, Yuwei Zhang, Zhenping Li, Yong Fang","doi":"10.1007/s11424-023-2065-4","DOIUrl":"https://doi.org/10.1007/s11424-023-2065-4","url":null,"abstract":"","PeriodicalId":50026,"journal":{"name":"Journal of Systems Science & Complexity","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135963643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 0
Adaptive Regulation for Hammerstein and Wiener Systems with Event-Triggered Observations 具有事件触发观测的Hammerstein和Wiener系统的自适应调节
3区 数学 Q1 MATHEMATICS, INTERDISCIPLINARY APPLICATIONS Pub Date : 2023-10-01 DOI: 10.1007/s11424-023-2005-3
Xiaotao Ren, Wenxiao Zhao, Jinwu Gao
{"title":"Adaptive Regulation for Hammerstein and Wiener Systems with Event-Triggered Observations","authors":"Xiaotao Ren, Wenxiao Zhao, Jinwu Gao","doi":"10.1007/s11424-023-2005-3","DOIUrl":"https://doi.org/10.1007/s11424-023-2005-3","url":null,"abstract":"","PeriodicalId":50026,"journal":{"name":"Journal of Systems Science & Complexity","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135963776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 0
On Types of Isolated KKT Points in Polynomial Optimization 多项式优化中孤立KKT点的类型
3区 数学 Q1 MATHEMATICS, INTERDISCIPLINARY APPLICATIONS Pub Date : 2023-10-01 DOI: 10.1007/s11424-023-2119-7
Feng Guo, Liguo Jiao, Do Sang Kim, Tien-Son Pham
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引用次数: 0
Associations Between Family Factors, Social Integration, and Suicidal Ideation Across the Life Course of an Urban African American Cohort. 一个城市非裔美国人群体的整个生命历程中,家庭因素、社会融合与自杀意念之间的关联。
IF 5.2 3区 数学 Q1 MATHEMATICS, INTERDISCIPLINARY APPLICATIONS Pub Date : 2023-05-01 Epub Date: 2023-08-31 DOI: 10.1177/00957984211061920
Munjireen S Sifat, Charlene Kuo, Jee Hun Yoo, Sharifah Holder, Kerry M Green

Suicide is a problem on the rise but not studied extensively among African Americans. It is critical to identify risk factors for suicidal ideation to reduce risk. This study examines whether family and social factors over the life course predict suicidal ideation among African American adults in midlife. We conducted multiple logistic regression analyses on data from a longitudinal cohort of African Americans first assessed in childhood to identify associations with suicidal ideation in midlife (ages 33-42). Findings suggested living without one's mother in childhood (vs. living with mother alone; aOR = 3.69, p = .017) and parental rule-setting in adolescence (aOR = 0.79, p = .047) were associated with suicidal ideation. Having a lifetime drug disorder (aOR = 2.19, p = .046) or major depression by young adulthood (aOR = 3.58, p < .001) was also associated with an increased risk of suicidal ideation. Findings highlight the importance of intervention for children in mother-absent homes for improving mental health outcomes. Family interventions that promote parental rule-setting and addressing drug problems and depressive symptoms early in the life course offer an area for intervention to reduce suicide over the long term.

自杀问题呈上升趋势,但对非裔美国人的研究并不广泛。识别自杀意念的风险因素以降低风险至关重要。本研究探讨了人生过程中的家庭和社会因素是否会对中年非裔美国成年人的自杀意念产生预测作用。我们对非裔美国人的纵向队列数据进行了多重逻辑回归分析,这些数据是在童年时首次进行评估的,目的是确定与中年(33-42 岁)自杀意念的关联。研究结果表明,童年时没有母亲陪伴(与只有母亲陪伴的情况相比;aOR = 3.69,p = .017)和青春期父母的规则设定(aOR = 0.79,p = .047)与自杀倾向有关。终生患有药物紊乱(aOR = 2.19,p = .046)或年轻时患有重度抑郁症(aOR = 3.58,p < .001)也与自杀意念风险增加有关。研究结果凸显了对母亲缺失家庭中的儿童进行干预对改善心理健康结果的重要性。家庭干预措施可促进父母制定规则,并在生命早期解决毒品问题和抑郁症状,这为长期减少自杀提供了干预领域。
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引用次数: 0
Distributed H∞ Consensus Problem for First-Order Multi-Agent Systems with Antagonistic Interactions and Nonconvex Constraints 具有对抗相互作用和非凸约束的一阶多智能体系统的分布式H∞一致性问题
IF 2.1 3区 数学 Q1 MATHEMATICS, INTERDISCIPLINARY APPLICATIONS Pub Date : 2023-04-01 DOI: 10.1007/s11424-023-1250-9
Xinyu Fan, Shujin Chen, Xiaoli Wang
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引用次数: 0
Preface to the Special Topic on Computer Mathematics 计算机数学专题前言
3区 数学 Q1 MATHEMATICS, INTERDISCIPLINARY APPLICATIONS Pub Date : 2023-02-01 DOI: 10.1007/s11424-023-3000-4
Shaoshi Chen, Chenqi Mou
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引用次数: 0
Empirical Likelihood for a First-Order Generalized Random Coefficient Integer-Valued Autoregressive Process. 一阶广义随机系数整值自回归过程的经验似然性。
3区 数学 Q1 MATHEMATICS, INTERDISCIPLINARY APPLICATIONS Pub Date : 2023-01-01 DOI: 10.1007/s11424-023-1051-1
Jianhua Cheng, Xu Wang, Dehui Wang

In this paper, the authors consider the empirical likelihood method for a first-order generalized random coefficient integer-valued autoregressive process. The authors establish the log empirical likelihood ratio statistic and obtain its limiting distribution. Furthermore, the authors investigate the point estimation, confidence regions and hypothesis testing for the parameters of interest. The performance of empirical likelihood method is illustrated by a simulation study and a real data example.

本文研究了一类一阶广义随机系数整值自回归过程的经验似然方法。建立了对数经验似然比统计量,并得到了其极限分布。此外,作者还研究了感兴趣参数的点估计、置信区域和假设检验。通过仿真研究和实际数据算例说明了经验似然方法的性能。
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引用次数: 0
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Journal of Systems Science & Complexity
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