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Communications of the ACM

Research Archive


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The Research archive provides access to all Research articles published in past issues of Communications of the ACM.

September 2020


From Communications of the ACM

Computing Value of Spatiotemporal Information

Computing Value of Spatiotemporal Information

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.


From Communications of the ACM

Technical Perspective: Progress in Spatial Computing for Flood Prediction

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.


From Communications of the ACM

Flood-Risk Analysis on Terrains

Flood-Risk Analysis on Terrains

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.


From Communications of the ACM

Technical Perspective: Computing the Value of Location Data

"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.