January 25, 2021
<sid.inpe.br/sibgrapi@80/2007/09.27.20.08>
(repository)

Conference Proceedings
Efficient viewshed computation on external memory DEM terrains
Magalhães, Mirella & Magalhães, Salles & Alvim, Marcus Vinicius :2007:
(metadata from site <sibgrapi.sid.inpe.br 802>)

The number of visits¹ since January 29, 2009 is 1850.

Average number of visits per day over 10 periods of 438 days

1.50 0.53 0.41 0.35 0.19 0.47 0.41 0.15 0.13 0.08   1       2      3      4      5      6      7      8      9       10

The red period number indicates that the corresponding period contains the day May 17, 2015¹.
The height of the purple bar is proportional to the average number of visits per day
within the corresponding period.
Period 1 begins on January 29, 2009 ( ), and Period 10 ends on January 25, 2021 ( ).
The number of visits over the 10 periods is 1850.
The average number of visits per day over the 10 periods is 0.42.
¹Before May 17, 2015, all each user visits (IP) were added, thereafter, only one visit per day for each user (IP) is added.