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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：How to capture tourists' search behavior in tourism forecasts？A two-stage feature selection approach
旅游预测 游客 搜索行为 两阶段 特征选择方法
2023/5/16
Search engine data have been widely used and shown to be useful in tourism demand forecasting. However, considering of the vast amounts of search keywords, how to better capture the tourists' attentio...
Life Cycle Perspective of R&D Investment Management: Case Study Approach
Life Cycle Costing R&D investment Strategic Management Accounting
2016/1/27
The management of R&D activities has become popular among researchers. The need for changes in R&D organization and financial support brings new decision-making issues for the R&D manager. Life cycle ...
Assessing the significance of global and local correlations under spatial autocorrelation;a nonparametric approach
Geostatistics Monte-Carlo methods Resampling Spatial autocorrelation Spatial statistics Variogram
2015/8/21
In this paper we present a method to assess the significance of the correlation coefficient when at least one of the variables is spatially autocorrelated. The standard test assumes independence of th...
CATS regression–a model-based approach to studying trait-based community assembly
community composition community-level models fourth corner model generalised linear models maximum entropy Poisson regression
2015/8/21
CATS regression–a model-based approach to studying trait-based community assembly.
Reenactment:An embodied cognition approach to meaning and linguistic content
action cognitive linguistics dialogue embodied cognition meaning simulation
2015/7/21
A central finding in experimental research identified with Embodied Cognition (EC) is that understanding actions involves their embodied simulation, i.e. executing some processes involved in performin...
Accounting for Expectational and Structural Error in Binary Choice Problems: A Moment Inequality Approach
discrete choice models moment inequalities entry models
2015/7/17
Many economic decisions involve a binary choice - for example, when consumers decide to purchase a good or when rms decide to enter a new market.
In such settings, agents' choices often depend on im...
A Decomposition Approach to Distributed Analysis of Networked Systems
Decomposition Approach Distributed Analysis Networked Systems
2015/7/10
We present a simple distributed algorithm for analyzing well-posedness and stability of a system composed of different sub-units, interconnected over an arbitrary graph. The procedure consists in solv...
Further Relaxations of the Semidefinite Programming Approach to Sensor Network Localization
sensor network localization semidefi nite programming
2015/7/9
Recently, a semidefinite programming (SDP) relaxation approach has been proposed to solve the sensor network localization problem. Although it achieves high accuracy in estimating the sensor locations...
A Nonparametric Approach to Multiproduct Pricing
pricing:multiproduct pricing marketing: buyer behavior choice models
2015/7/6
Developed by General Motors (GM), the Auto Choice Advisor website (http://www.autochoiceadvisor.com) recommends vehicles to consumers based on their requirements and budget constraints. Through the we...
In this paper, we introduce a new approach to constructing unbiased estimators when computing expectations of path functionals associated with stochastic differential equations (SDEs). Our randomizati...
Capital Controls: A Political Economy Approach
Economy Voting Conflict of Interests Capital Government and Politics Wages Saving
2015/5/14
This paper examines the economic consequences of political conflicts that arise when countries implement capital controls. In an overlapping-generations model, agents vote on whether to open or close ...
Focusing Revisited: an MN-dynamics Approach
Nonlinear Schr odinger equation the dispersion system focusing on NLS equation
2014/12/29
The nonlinear Schr¨odinger (NLS) equation is a ubiquitous example of an envelope wave equation for conservative, dispersive systems. We revisit here the problem of self-similar focusing of waves in th...
Coupling fields and underlying space curvature: An augmented Lagrangian approach
Coupling scalar field space field feedback system model molecular dynamics
2014/12/29
We demonstrate a systematic implementation of coupling between a scalar field and the geometry of the space which carries the field. This naturally gives rise to a feedback mechanism between the field...
Variational approach to the modulational instability
Coupling nonlinear schrodinger equation the coupling disturbance amplitude condensed bose - Einstein
2014/12/29
We study the modulational stability of the nonlinear Schrödinger equation using a time-dependent variational approach. Within this framework, we derive ordinary differential equations (ODE’s) for...
Solitary wave interactions in dispersive equations using Manton’s approach
Invariant to calculate solitary wave dispersion equation solitary wave vries equation and nonlinear schrodinger equation
2014/12/29
We generalize the approach first proposed by Manton [Nucl. Phys. B 150, 397 (1979)] to compute solitary wave interactions in translationally invariant, dispersive equations that support such localized...