Communications of the ACM
Latest Research
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...
From Communications of the ACM
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...
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...
From Communications of the ACM
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: From Virtual Worlds to Digital Fabrication
The authors of "OpenFab" propose to revisit the processing pipeline that turns a 3D model into machine instructions in light of the solutions developed in computer...
From Communications of the ACM
OpenFab: A Programmable Pipeline for Multimaterial Fabrication
We present OpenFab, a programmable pipeline for synthesis of multimaterial 3D printed objects that is inspired by RenderMan and modern GPU pipelines.
From Communications of the ACM
Technical Perspective: Back to the Edge
"Heterogeneous Von Neumann/Dataflow Microprocessors" describes an innovative approach to exploit both CDFG and EDGE computation models.
From Communications of the ACM
Heterogeneous Von Neumann/Dataflow Microprocessors
This work studies the potential of a paradigm of heterogeneous execution models by developing a specialization engine for explicit-dataflow (SEED) and integrating...
From Communications of the ACM
Technical Perspective: How Economic Theories Can Help Computers Beat the Heat
The authors of "Distributed Strategies for Computational Sprints" bring the rich theory of allocating scarce resources to the challenge of managing computational...
From Communications of the ACM
Distributed Strategies for Computational Sprints
We describe a computational sprinting architecture in which many, independent chip multiprocessors share a power supply and sprints are constrained by the chips'...
From Communications of the ACM
Technical Perspective: To Do or Not To Do: Extending SQL with Integer Linear Programming?
"Scalable Computation of High-Order Optimization Queries," by Brucato et al., makes a case for marrying the well-established paradigms of constrained optimization...
From Communications of the ACM
Scalable Computation of High-Order Optimization Queries
We present a complete system that supports package queries, a new query model that extends traditional database queries to handle complex constraints and preferences...
From Communications of the ACM
Technical Perspective: Making Sleep Tracking More User Friendly
"LIBS: A Bioelectrical Sensing System from Human Ears for Staging Whole-Night Sleep Study" provides a nice balance in terms of minimizing the burden on users and...
From Communications of the ACM
LIBS: A Bioelectrical Sensing System from Human Ears for Staging Whole-Night Sleep Study
We explore a new form of wearable systems, called LIBS, that can continuously record biosignals such as brain wave, eye movements, and facial muscle contractions...
From Communications of the ACM
Technical Perspective: The Rewards of Selfish Mining
"Majority Is Not Enough: Bitcoin Mining Is Vulnerable," by Eyal and Sirer, questions the 2009 Bitcoin white paper's implicit assumption of perfect information—that...
From Communications of the ACM
Majority Is Not Enough: Bitcoin Mining Is Vulnerable
We propose a practical modification to the Bitcoin protocol that protects Bitcoin in the general case.
From Communications of the ACM
Technical Perspective: A Graph-Theoretic Framework Traces Task Planning
In "Time-Inconsistent Planning: A Computational Problem in Behavioral Economics," Kleinberg and Oren describe a graph-theoretic framework for task planning with...
From Communications of the ACM
Time-Inconsistent Planning: A Computational Problem in Behavioral Economics
We propose a graph-theoretic model of tasks and goals, in which dependencies among actions are represented by a directed graph, and a time-inconsistent agent constructs...
From Communications of the ACM
Technical Perspective: Designing Algorithms and the Fairness Criteria They Should Satisfy
"Which Is the Fairest (Rent Division) of Them All?" focuses on the problem of rent division, and stands out in the variety of techniques applied to arrive at a...
From Communications of the ACM