We thank Sergey Fomel and Zhicheng Geng for inspiring discussion about
streaming computation. We thank the editor-in-chief, Dr. John Etgen,
the anonymous associate editor, and four anonymous reviewers for the
helpful suggestions that improved the quality of the paper. This work
is supported by National Natural Science Foundation of China (grant
nos. 41974134 and 41774127). All results are producible in the
Madagascar open-source software environment (Fomel et al., 2013).