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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Estimating Time-Varying Networks for High-Dimensional Time Series
高维 时间序列 时变网络
2023/4/25
We explore time-varying networks for high-dimensional locally stationary time series, using the large VAR model framework with both the transition and (error) precision matrices evolving smoothly over...
Estimation of Spatial Panel Data Models with Time Varying Spatial Weights Matrices
Spatial autoregression Panel data Time varying spatial weights matrices Fixed e¤ects Maximum likelihood Impact analysis
2016/1/26
This paper investigates the quasi-maximum likelihood (QML) estimation of spatial panel data models where spatial weights matrices can be time varying. We show that QML estimate is consistent and asymp...
Estimation of Spatial Panel Data Models with Time Varying Spatial Weights Matrices
Spatial autoregression Panel data Time varying spatial weights matrices Fixed e¤ects Maximum likelihood Impact analysis
2016/1/20
This paper investigates the quasi-maximum likelihood (QML) estimation of spatial panel data models where spatial weights matrices can be time varying. We show that QML estimate is consistent and asymp...
QML estimation of spatial dynamic panel data models with time varying spatial weights matrices
Spatial autoregression Dynamic panels Time varying spatial weights matrix Fixed ef- fects Maximum likelihood
2016/1/19
This paper investigates the quasi-maximum likelihood estimation of spatial dynamic panel data mod-els where spatial weights matrices can be time varying. We …nd that QML estimate is consistent and asy...
Visual attention has been widely used in image pre-processing, since it can rapidly detect the region of interest in the given scene.
This paper presents a novel technique to track the moving object,...
An implementation of discrete multi-tone over slowly time-varying multiple-input/multiple-output channels
Communication system antenna number linear data transmission
2015/8/11
Recent analysis of Multiple-Input Multiple-Output (MIMO) communication systems, for example those involving antenna arrays, has shown that channel capacity increases linearly with the number of antenn...
Distributed average consensus with time-varying metropolis weights
Average consensus Distributed computing Metropolis algorithm
2015/8/10
Given a network of processes where each node has an initial scalar value, we consider the problem of computing their average asymptotically using a distributed, linear iterative algorithm. At each ite...
An Implementation of Discrete Multi-tone Over Slowly Time-Varying Multiple-Input/Multiple-Output Channels
Discrete Multi-tone Slowly Time-Varying Multiple-Input/Multiple-Output Channels
2015/7/13
Recent analysis of Multiple-Input Multiple-Output (MIMO) communication systems, for example those involving antenna arrays, has shown that channel capacity increases linearly with the number of antenn...
Distributed Power Control for Time-Varying Wireless Networks: Optimality and Convergence
Distributed Power Control Time-Varying Wireless Networks Optimality Convergence
2015/7/8
This paper presents a new distributed power control algorithm for ad-hoc wire- less networks in random channel environments. Previous work in this area has focused on distributed power control for ad-...
Distributed Power Control for Time-Varying Wireless Networks
Distributed Power Control Time-Varying Wireless Networks
2015/7/8
This paper presents new distributed power and admission control algorithms for ad-hoc wireless networks in random channel environments. Previous work in this area has focused on distributed control fo...
Formulation of a Time-Varying Maximum Allowable Error for Ground-Based Augmentation Systems
Time-Varying Maximum Allowable Error Ground-Based Augmentation Systems
2015/6/26
Ground-Based Augmentation Systems (GBAS), such as the Federal Aviation Administration’s Local Area Augmentation System (LAAS), ensure integrity by enabling users to compute a conservative navigation e...
Using time-varying evidence to test models of decision dynamics:bounded diffusion vs.the leaky competing accumulator model
bounded diffusion LCA perceptual choice non-stationary evidence order effects
2015/6/23
When people make decisions, do they give equal weight to evidence arriving at different times? A recent study (Kiani et al., 2008) using brief motion pulses (superimposed on a random moving dot displa...
Riccati Differential Inequalities: Suboptimal H-infinity Controllers for Finite Horizon Time-Varying Systems
Riccati Differential Inequalities Suboptimal H-infinity
2015/6/19
In this paper we give a direct derivation of the solution to the continuous time finite horizon H-infinity synthesis problem. An explicit separation of the time domain cost function into past and futu...
Robust Performance and Adaptation Using Receding Horizon H-infinity Control of Time Varying Systems
Receding Horizon H-infinity Control Time Varying Systems
2015/6/19
In this paper we construct suboptimal H-infinity controllers which satisfy a new robust performance condition, using the receding horizon technique. A method is described for the synthesis of H-infini...
Analysis and Synthesis Tools for Time-Varying Systems
Time-Varying Systems Analysis and Synthesis
2015/6/19
In this paper new techniques are developed for the analysis of linear time varying (LTV) systems. These lead to a formally simple treatment of problems for LTV systems, allowing methods more usually r...