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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Subsampling for Rare Events Data and maximum sampled conditional likelihood
罕见事件数据 子采样 最大采样 条件似然
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2023/5/15
In this talk, we show that the available information about unknown parameters in rare events data is only tied to the relatively small number of cases, which justifies the usage of negative sampling. ...
Control of Asynchronous Dynamical Systems with Rate Constraints on Events
Asynchronous dynamical systems Lyapunov theory linear matrix inequality (LMI) bilinear matrix inequality (BMI)
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2015/7/10
In this paper we consider dynamical systems which are driven by events that occur asynchronously. It is assumed that the event rates are fixed, or at least they can be bounded on any time period of le...
Robust Hydraulic Fracture Monitoring (HFM) of Multiple Time Overlapping Events Using a Generalized Discrete Radon Transform
Robust Hydraulic Fracture Monitoring (HFM) Multiple Time Overlapping Events aGeneralized Discrete Radon Transform
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2013/6/14
In this work we propose a novel algorithm for multiple-event localization for Hydraulic Fracture Monitoring (HFM) through the exploitation of the sparsity of the observed seismic signal when represent...
Detecting Events and Patterns in Large-Scale User Generated Textual Streams with Statistical Learning Methods
Detecting Events Patterns Large-Scale User Generated Textual Streams Statistical Learning Methods
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2012/9/18
A vast amount of textual web streams is influenced by events or phenomena emerging in the real world. The social web forms an excellent modern paradigm, where unstructured user generated content is pu...
Estimation of rare events probabilities in computer experiments
computer experiments rare events Kriging importance sampling Bayesian estimates risk assessment with ghter aircraft
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2011/6/16
We are interested in estimating probabilities of rare events in the context of com-
puter experiments. These rare events depend on the output of a physical model with
random input variables. Since t...
Construction of Virtual Information Center in Scene Disposition of Unexpected Public Emergency Events
Unexpected Public Emergency Events Scene Disposition Virtual Information Center
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2013/2/23
Unexpected public emergency events have occurred frequently in recent years. How to deal with these events quickly and efficiently has become an important issue. First, the paper describes the importa...
The extremogram:A correlogram for extreme events
GARCH multivariate regular variation stationary sequence stochastic volatilityprocess tail dependence coefficient
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2010/3/9
We consider a strictly stationary sequence of random vectors whose finite-dimensional distributions
are jointly regularly varying with some positive index. This class of processes includes,
among ot...
‘Real-Time’ Human Resource Management Instruction: Using Current Events to Improve Relevance
‘Real-Time’ Human Resource Management Instruction Current Events Relevance
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2010/3/4
Although human resource management (HRM) is integral to organisational success and the media frequently report related events, no studies have measured such coverage. The literature also does not refl...
The conflict between work and family roles: the effects on managers' reliance on information sources in dealing with significant workplace events
Work-Family Conflict Decision-making Information Source Usage Organizational Culture
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2009/11/30
This study assessed the effect of conflict between family and work roles on the information
search behavior in a sample of credit union executives. The study found evidence of significant relationsh...
The Effects of Health Events on the Economic Status of Married Couples
Health Events the Economic Status Married Couples
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2009/9/23
This paper uses measures of exogenous health "shocks" to identify the different channels through which changes in health conditions affect income, wealth, and consumption behavior. The results indicat...
Intensity Models for Parametric Analysis of Recurrent Events Data
Intensity Models Parametric Analysis Recurrent Events Data
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2009/9/17
Intensity Models for Parametric Analysis of Recurrent Events Data。
The Cognitive Appraisal of Stress: The influence of Organizational CIimate, Perceptions of Control, and Feelings Associated with Stressful Work Events
stress organizational climate Perceptions of control work events
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2009/4/27
The concept of work stress remains poorly understood despite the convergence of current thinking on the view that stress is a dynamic process rather than a static event. The present study explores the...
Events celebrate EntrepreneurshipWeek USA
Entrepreneurship
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2007/3/5
February 26, 2007,ASU will join more than 1,000 organizations and universities nationwide in celebrating EntrepreneurshipWeek USA through March 3.The initiative – with the theme “What's Your Big Idea?...
The Effects of Health Events on the Economic Status of Married Couples
Health Events Economic Status Married Couples
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2016/3/4
This paper uses measures of exogenous health “shocks” to identify the different channels through which changes in health conditions affect income, wealth, and consumption behavior. The results indicat...