Fig. 5
From: DIM: a distributed air index based on MapReduce for spatial query processing in road networks
![Fig. 5](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs13638-018-1287-y/MediaObjects/13638_2018_1287_Fig5_HTML.png)
The sequence of the cells. a The sequence of the original cells. b Optimized partition order. This figure well represents the one-dimensional order of the network space