Auto Regressive Model and Weighted Least Squares Based Packet Video Error Concealment

2010 ◽  
Author(s):  
Yongbing Zhang ◽  
Xinguang Xiang ◽  
Siwei Ma ◽  
Debin Zhao ◽  
Wen Gao
Keyword(s):  
Least Squares ◽  
Error Concealment ◽  
Weighted Least Squares ◽  
Regressive Model ◽  
Auto Regressive ◽  
Packet Video ◽  
Video Error Concealment ◽  
Auto Regressive Model

Packet Video Error Concealment With Auto Regressive Model

2012 ◽  
Vol 22 (1) ◽  
pp. 12-27 ◽  
Author(s):  
Yongbing Zhang ◽  
Xinguang Xiang ◽  
Debin Zhao ◽  
Siwe Ma ◽  
Wen Gao
Keyword(s):  
Error Concealment ◽  
Regressive Model ◽  
Auto Regressive ◽  
Packet Video ◽  
Video Error Concealment ◽  
Auto Regressive Model

scholarly journals Estimation of Excess Mortality and Years of Life Lost to COVID-19 in Norway and Sweden between March and November 2020

2021 ◽  
Vol 18 (8) ◽  
pp. 3913
Author(s):  
Martin Rypdal ◽  
Kristoffer Rypdal ◽  
Ola Løvsletten ◽  
Sigrunn Holbek Sørbye ◽  
Elinor Ytterstad ◽  
...  
Keyword(s):  
Excess Mortality ◽  
Age Groups ◽  
Years Of Life Lost ◽  
Regressive Model ◽  
Epidemic Period ◽  
All Cause Mortality ◽  
Auto Regressive ◽  
Expected Mortality ◽  
Auto Regressive Model ◽  
Excess Deaths

We estimate the weekly excess all-cause mortality in Norway and Sweden, the years of life lost (YLL) attributed to COVID-19 in Sweden, and the significance of mortality displacement. We computed the expected mortality by taking into account the declining trend and the seasonality in mortality in the two countries over the past 20 years. From the excess mortality in Sweden in 2019/20, we estimated the YLL attributed to COVID-19 using the life expectancy in different age groups. We adjusted this estimate for possible displacement using an auto-regressive model for the year-to-year variations in excess mortality. We found that excess all-cause mortality over the epidemic year, July 2019 to July 2020, was 517 (95%CI = (12, 1074)) in Norway and 4329 [3331, 5325] in Sweden. There were 255 COVID-19 related deaths reported in Norway, and 5741 in Sweden, that year. During the epidemic period of 11 March–11 November, there were 6247 reported COVID-19 deaths and 5517 (4701, 6330) excess deaths in Sweden. We estimated that the number of YLL attributed to COVID-19 in Sweden was 45,850 [13,915, 80,276] without adjusting for mortality displacement and 43,073 (12,160, 85,451) after adjusting for the displacement accounted for by the auto-regressive model. In conclusion, we find good agreement between officially recorded COVID-19 related deaths and all-cause excess deaths in both countries during the first epidemic wave and no significant mortality displacement that can explain those deaths.

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