A Gaussian copula regression model for movie box-office revenues prediction

2017 ◽  
Vol 60 (9) ◽  
Author(s):  
Junwen Duan ◽  
Xiao Ding ◽  
Ting Liu
Keyword(s):  
Regression Model ◽  
Gaussian Copula ◽  
Box Office

scholarly journals A Copula-Based Approach for Accommodating the Underreporting Effect in Wildlife‒Vehicle Crash Analysis

2019 ◽  
Vol 11 (2) ◽  
pp. 418 ◽  
Author(s):  
Yajie Zou ◽  
Xinzhi Zhong ◽  
Jinjun Tang ◽  
Xin Ye ◽  
Lingtao Wu ◽  
...  
Keyword(s):  
Regression Model ◽  
Empirical Bayes ◽  
Negative Binomial ◽  
Washington State ◽  
Gaussian Copula ◽  
Copula Model ◽  
Crash Analysis ◽  
Vehicle Collisions ◽  
Vehicle Collision

Wildlife‒vehicle collision (WVC) data usually contain two types: the reported WVC data and carcass removal data. Previous studies often found a discrepancy between the number of reported WVC and carcass removal data, and the quality of both datasets is affected by underreporting. Underreporting means the number of WVCs is not fully recorded in the database; neglecting the underreporting in WVC data may result in biased parameter estimation results. In this study, a copula regression model linking wildlife‒vehicle collisions and the underreporting outcome was proposed to consider the underreporting in WVC data. The WVC data collected from 10 highways in Washington State were analyzed using the copula regression model and the Negative Binomial (NB) model. The main findings from this study are as follows: (1) the Gaussian copula model can provide different modeling results when compared with the conventional modeling approach; (2) the hotspot identification results indicate that the Gaussian copula-based Empirical Bayes (EB) method can more accurately identify hotspots than the NB-based EB method. Thus, the proposed copula model may be a better alternative to the conventional NB model for modeling underreported WVC data.

Multisite and multivariable statistical downscaling using a Gaussian copula quantile regression model

2015 ◽  
Vol 47 (5-6) ◽  
pp. 1383-1397 ◽  
Author(s):  
M. A. Ben Alaya ◽  
F. Chebana ◽  
T. B. M. J. Ouarda
Keyword(s):  
Quantile Regression ◽  
Regression Model ◽  
Statistical Downscaling ◽  
Gaussian Copula ◽  
Quantile Regression Model
Sign in / Sign up

Export Citation Format

Share Document