The Research archive provides access to all Research articles published in past issues of Communications of the ACM.
We investigate the intrinsic value of location data in the context of strong privacy, where location information is only available from end users via purchase.
There are few algorithms for multi-flow graphs beyond flow accumulation. The authors of "Flood-Risk Analysis on Terrains" take a big step to fill this knowledge gap.
In this paper, we study a number of flood-risk related problems, give an overview of efficient algorithms for them, as well as explore the efficacy and efficiency of these algorithms on real terrains.
"Computing Value of Spatiotemporal Information," by Heba Aly et al., describes a technique for computing the monetary value of a person's location data for a potential geo-marketplace.