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Social media sentiment, model uncertainty, and volatility forecasting 期刊论文
ECONOMIC MODELLING, 2021, 卷号: 102, 页码: 13
Authors:  Lehrer, Steven;  Xie, Tian;  Zhang, Xinyu
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Model averaging  Volatility forecasting  Social media  Big data  Sentiment analysis  
Multimodel inference based on smoothed information criteria 期刊论文
SCIENCE CHINA-MATHEMATICS, 2021, 页码: 16
Authors:  Zhao, Shangwei;  Zhang, Xinyu
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information criterion  model averaging  multimodel inference  variance estimation  weight  
Model averaging prediction for time series models with a diverging number of parameters 期刊论文
JOURNAL OF ECONOMETRICS, 2021, 卷号: 223, 期号: 1, 页码: 190-221
Authors:  Liao, Jun;  Zou, Guohua;  Gao, Yan;  Zhang, Xinyu
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Asymptotic optimality  Autoregressive process  Consistency  Mallows criterion  Model averaging  
Time-varying model averaging? 期刊论文
JOURNAL OF ECONOMETRICS, 2021, 卷号: 222, 期号: 2, 页码: 974-992
Authors:  Sun, Yuying;  Hong, Yongmiao;  Lee, Tae-Hwy;  Wang, Shouyang;  Zhang, Xinyu
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Asymptotic optimality  Forecast combination  Local stationarity  Model averaging  Structural change  Time-varying model averaging  
Deep Nitsche Method: Deep Ritz Method with Essential Boundary Conditions 期刊论文
COMMUNICATIONS IN COMPUTATIONAL PHYSICS, 2021, 卷号: 29, 期号: 5, 页码: 1365-1384
Authors:  Liao, Yulei;  Ming, Pingbing
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Deep Nitsche Method  Deep Ritz Method  neural network approximation  mixed boundary conditions  curse of dimensionality  
Stochastic Variance Reduced Gradient Methods Using a Trust-Region-Like Scheme 期刊论文
JOURNAL OF SCIENTIFIC COMPUTING, 2021, 卷号: 87, 期号: 1, 页码: 24
Authors:  Yu, Tengteng;  Liu, Xin-Wei;  Dai, Yu-Hong;  Sun, Jie
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Stochastic variance reduced gradient  Trust region  Barzilai-Borwein stepsizes  Mini-batches  Empirical risk minimization  90C06  90C30  90C90  90C25  
On some extended mixed integer optimization models of the Eisenberg-Noe model in systemic risk management 期刊论文
INTERNATIONAL TRANSACTIONS IN OPERATIONAL RESEARCH, 2021, 页码: 24
Authors:  Dong, Zhi-Long;  Peng, Jiming;  Xu, Fengmin;  Dai, Yu-Hong
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financial network  systemic risk  mixed integer programming  coefficient strengthening  sequential linear optimization  
An exact separation algorithm for unsplittable flow capacitated network design arc-set polyhedron 期刊论文
JOURNAL OF GLOBAL OPTIMIZATION, 2021, 页码: 31
Authors:  Chen, Liang;  Chen, Wei-Kun;  Yang, Mu-Ming;  Dai, Yu-Hong
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Cutting planes  Exact separation  Flow arc-set polyhedron  Unsplittable capacitated network design  
Model averaging estimation for high-dimensional covariance matrices with a network structure 期刊论文
ECONOMETRICS JOURNAL, 2021, 卷号: 24, 期号: 1, 页码: 177-197
Authors:  Zhu, Rong;  Zhang, Xinyu;  Ma, Yanyuan;  Zou, Guohua
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asymptotic optimality  consistency  covariance regression network model  Mallows criterion  model averaging  
Fast algorithms for sparse portfolio selection considering industries and investment styles 期刊论文
JOURNAL OF GLOBAL OPTIMIZATION, 2020, 页码: 27
Authors:  Dong, Zhi-Long;  Xu, Fengmin;  Dai, Yu-Hong
Favorite  |  View/Download:22/0  |  Submit date:2020/06/30
Portfolio selection  Industry classification  Style investment  ADMM  Sparse optimization